Copywriteroffice

Serp data

Request Result Detail

The request result help you to show your API requests results.

Copywriteroffice - How did VoIP work serp result detail
Keyword How did VoIP work
Search Urlhttps://www.google.com/search?q=How+did+VoIP+work&oq=How+did+VoIP+work&num=30&hl=en&gl=GB&sourceid=chrome&ie=UTF-8
Devicedesktop
Languageen
LocationGB
Search Enginegoogle.com
No. Of Results19600000
RelatedSearch
how does voip work diagramhttps://www.google.com/search?num=30&hl=en&gl=gb&q=How+does+VoIP+work+diagram&sa=X&ved=2ahUKEwjahv7F8Kb1AhVTpJUCHaRQCeIQ1QJ6BAg0EAE
what is voiphttps://www.google.com/search?num=30&hl=en&gl=gb&q=What+is+VoIP&sa=X&ved=2ahUKEwjahv7F8Kb1AhVTpJUCHaRQCeIQ1QJ6BAgyEAE
explain the end-to-end process of how voip workshttps://www.google.com/search?num=30&hl=en&gl=gb&q=explain+the+end-to-end+process+of+how+voip+works&sa=X&ved=2ahUKEwjahv7F8Kb1AhVTpJUCHaRQCeIQ1QJ6BAgxEAE
how to setup voip phone at homehttps://www.google.com/search?num=30&hl=en&gl=gb&q=How+to+setup+VoIP+phone+at+home&sa=X&ved=2ahUKEwjahv7F8Kb1AhVTpJUCHaRQCeIQ1QJ6BAgwEAE
how does voip work for home phonehttps://www.google.com/search?num=30&hl=en&gl=gb&q=How+does+VoIP+work+for+home+phone&sa=X&ved=2ahUKEwjahv7F8Kb1AhVTpJUCHaRQCeIQ1QJ6BAgvEAE
voip advantages and disadvantageshttps://www.google.com/search?num=30&hl=en&gl=gb&q=VoIP+advantages+and+disadvantages&sa=X&ved=2ahUKEwjahv7F8Kb1AhVTpJUCHaRQCeIQ1QJ6BAgrEAE
voip adapterhttps://www.google.com/search?num=30&hl=en&gl=gb&q=VoIP+Adapter&sa=X&ved=2ahUKEwjahv7F8Kb1AhVTpJUCHaRQCeIQ1QJ6BAgoEAE
advantages of voiphttps://www.google.com/search?num=30&hl=en&gl=gb&q=Advantages+of+VoIP&sa=X&ved=2ahUKEwjahv7F8Kb1AhVTpJUCHaRQCeIQ1QJ6BAgmEAE
Result 1
TitleHow do VoIP phones work – a step by step guide -
Urlhttps://www.structuredcommunications.co.uk/how-do-voip-phones-work-a-step-by-step-guide/
DescriptionVoIP is quickly becoming one of the most popular phone solutions globally. But how do VoIP phones work? We explain in our simple step-by-step guide
Date
Organic Position
H1How do VoIP phones work – a step by step guide
H2Get In Touch:
What is VoIP?
How do VoIP phones work?
How does VoIP work with different devices?
Why choose VoIP?
Thinking of switching to VoIP?
CONTACT DETAILS
HELPFUL PAGES
INFORMATION
H3
H2WithAnchorsGet In Touch:
What is VoIP?
How do VoIP phones work?
How does VoIP work with different devices?
Why choose VoIP?
Thinking of switching to VoIP?
CONTACT DETAILS
HELPFUL PAGES
INFORMATION
BodyHow do VoIP phones work – a step by step guide Leave a Comment / VoIP / By Matt Warren VoIP is quickly becoming one of the most popular phone solutions for both business and domestic use. The revolutionary technology uses the internet to make phone calls, providing users with an affordable alternative to landline telephones and hosting a multitude of useful bonus features. But how do VoIP phones work? What is VoIP? Voice over Internet Protocol (VoIP) is a phone system that uses the internet to make and receive phone calls, rather than the regular landline network. Often referred to as internet (IP) telephony or cloud-based telephony, VoIP phones deliver voice calls through your internet connection, usually via dedicated handsets. Although most VoIP phone systems look similar in appearance to landline phones, they work very differently. How do VoIP phones work? The VoIP system works by using packet switching technology that converts analogue voice signals into digital data. In simple terms, this means that sound waves (i.e. your voice) are converted into digital data, enabling people to use the Internet as a communication method for phone calls. A VoIP phone works according to the following steps: When a VoIP phone receives the digital data from another device, it splits the data into information packets and puts a destination address on each packet. The converted data is then sent over your broadband line to your router. Once the router has received the data, it finds the shortest path to its destination. The packet might pass through multiple routers in order to optimize the final route. The packet is then received at the destination. The receiving VoIP phone then uses the addresses for each packet to put the packets in the correct order. The VoIP user then receiver the data as recognisable speech. Most businesses will use a communication centre to organise the phones within the company’s network. These transmission centres are known as private brand exchange systems (PBX). A PBX system is a private telephone network uses the local area network to connect to the telephone network, allowing calls to be made and received. PBX systems have now evolved to allow calls to be made using VoIP technology; this newer system is known as IP PBX. IP PBX systems are call centres suited for IP networks, allowing users to make phone calls through their internet connection. IP PBX switches calls between VoIP users on local lines, permitting calls to be connected between VoIP users and traditional users, or between two traditional telephone users. This means that users can have one network for both voice and data communications, reducing cost and increasing efficiency. Furthermore, IP PBX systems that use SIP trunking allow for video conferencing, instant messaging, media distribution and other applications. VoIP phones rely on an off-premises router, but the way calls are made will vary depending on the device you’re using. You can make phone calls using IP telephony either with a VoIP handset, a VoIP adapter, a computer or with a smartphone. How does VoIP work with different devices? Analogue Telephone Adapter: The most common way to use VoIP is either with a VoIP handset or using an analogue telephone adaptor (ATA). ATAs allow you to connect a standard phone to the internet, allowing you to use your existing phone with the VoIP system. The ATA converts analogue signals into digital data for transmission over the internet. You simply plug the lead from your telephone that would normally go into the wall socket into the ATA and then you’re ready to make VoIP calls. VoIP handset: The concept is very similar for regular VoIP handsets. VoIP handsets plug straight into your router using an ethernet cable, allowing calls to be made and received using the internet. VoIP handsets are already set up with all the hardware and software necessary to make the phone work. Smartphones: You can use most smartphones to make calls over the internet or in conjunction with your VoIP system. There are various apps which allow you to configure your mobile phone to the VoIP system, allowing you to use VoIP even when working remotely. Computers and laptops: Laptop and desktop computers can also be used to make calls using the internet. Desktop apps such as Skype and Google Talk offer free calls to others who have the app, or you can pay a small fee to call another telephone number. Why choose VoIP? Although the technicalities of how VoIP phones work seems complicated, the system is extremely simple to navigate once it is installed. There are a host of benefits to using VoIP phones rather than landline phones, including: VoIP phones are tied to user accounts, not phone numbers, so you can take calls from multiple accounts and different phone numbers. VoIP handsets have toggle buttons that let you pick between current, incoming and waiting calls. VoIP phones are capable of high definition sound when working in conjunction with a high-quality internet connection. Once your VoIP system is set up, it’s a lot cheaper than using normal phone lines. With most contracts, you won’t pay more when making calls over longer distances or if you’re talking for extended periods. It is important to note that you’ll need a reliable internet connection to ensure good sound quality while making calls. This often means businesses who switch to VoIP opt for a private internet connection or a quality ISP that reduces any chance of latency. Thinking of switching to VoIP? If you’re thinking of choosing a new phone system, VoIP offers a great solution for growing businesses. But before you make any firm decisions, it’s always best to consider your unique business needs. For instance, if you do not require video messaging capabilities, a simple VoIP solution may be more suitable than SIP trunking. At Structured Communications, we have years of experience in delivering first-class internet telephony solutions. We offer both VoIP and SIP networks so that you can find the perfect phone solution for you. To find out more, please do not hesitate to get in touch. Rated 4.65/5 by customers Our scores is based on the reviews we’ve collected on Reviews.io Read our reviews CONTACT DETAILS . Structured CommunicationsUnit 8 Foundry Court,Foundry Lane, Horsham,West Sussex, RH13 5PY T:  0203 301 4000 F:  0203 301 4009 E:  [email protected] HELPFUL PAGES. – Small & Medium Business– Large & Corporate Business– Specialist industries– Speed Test INFORMATION. – About Us – Contact – Blog – ISDN Switch Off – Careers © 2021 Structured Communications | All rights reserved | Terms & Conditions | Privacy Policy | Powered by Crescat Digital
Topics
  • Topic
  • Tf
  • Position
  • voip
  • 44
  • 1
  • phone
  • 32
  • 1
  • call
  • 22
  • 1
  • internet
  • 16
  • 1
  • system
  • 15
  • 1
  • voip phone
  • 14
  • 1
  • network
  • 9
  • 1
  • work
  • 9
  • 1
  • user
  • 9
  • 1
  • data
  • 9
  • 1
  • telephone
  • 8
  • 1
  • handset
  • 8
  • 1
  • phone work
  • 7
  • 1
  • voip handset
  • 7
  • 1
  • business
  • 7
  • 1
  • ip
  • 7
  • 1
  • packet
  • 7
  • 1
  • pbx
  • 7
  • 1
  • voip phone work
  • 5
  • 1
  • phone call
  • 5
  • 1
  • internet connection
  • 5
  • 1
  • voip system
  • 5
  • 1
  • solution
  • 5
  • 1
  • voice
  • 5
  • 1
  • connection
  • 5
  • 1
  • digital
  • 5
  • 1
  • communication
  • 5
  • 1
  • router
  • 5
  • 1
  • allowing
  • 5
  • 1
  • call internet
  • 4
  • 1
  • digital data
  • 4
  • 1
  • call voip
  • 4
  • 1
  • pbx system
  • 4
  • 1
  • call made
  • 4
  • 1
  • ip pbx
  • 4
  • 1
  • landline
  • 4
  • 1
  • telephony
  • 4
  • 1
  • analogue
  • 4
  • 1
  • received
  • 4
  • 1
  • made
  • 4
  • 1
  • ata
  • 4
  • 1
  • phone system
  • 3
  • 1
  • handset voip
  • 3
  • 1
  • voip user
  • 3
  • 1
  • quality
  • 3
  • 1
  • structured
  • 3
  • 1
Result 2
Title
Url
Description
Date
Organic Position1
H1
H2
H3
H2WithAnchors
Body
Topics
  • Topic
  • Tf
  • Position
Result 3
TitleHow Does VoIP Work? Introduction to VoIP Phone Systems
Urlhttps://www.nextiva.com/blog/how-does-voip-work.html
DescriptionVoIP converts sound into digital packets that is transmitted via the internet. We take a deep dive into how to make calls with VoIP
Date6 Feb 2020
Organic Position2
H1How Does VoIP Work? The Beginner's Guide to VoIP Phone Systems
H2What is VoIP?
How Does a VoIP Phone System Work?
Why Do Businesses use VoIP?
Top VoIP Phone Features
VoIP Phone System Requirements
Selecting the Right VoIP Phone System
H3Hosted VoIP for Business
SIP Trunking for PBX Phone Systems
Mobile Devices & Wi-Fi Connectivity
Can I Use My Existing Phone With VoIP?
How Much Does a VoIP Phone System Cost?
Network Bandwidth
Phones & Devices
About the author
H2WithAnchorsWhat is VoIP?
How Does a VoIP Phone System Work?
Why Do Businesses use VoIP?
Top VoIP Phone Features
VoIP Phone System Requirements
Selecting the Right VoIP Phone System
BodyHow Does VoIP Work? The Beginner's Guide to VoIP Phone Systems by Cameron Johnson Posted on February 6, 2020February 16, 2021 By now, you’ve heard about VoIP, which is short for Voice over Internet Protocol. Originally launched on the internet in 1995, it’s an understatement to say that VoIP has changed the way we communicate. In this guide, we’ll explain how VoIP phone systems work, including all the ins and outs about making phone calls over the internet. Even if you consider yourself a beginner or a seasoned business leader, you’ll learn everything you need to know about internet phone service. What is VoIP? How Does a VoIP Phone System Work? Why Do Businesses Use VoIP? Top VoIP Phone System Features VoIP Phone System Requirements Selecting the Right VoIP Phone System What is VoIP? Voice over Internet Protocol refers to the standards that facilitate voice-based phone calls using an internet connection instead of a local telephone company. Voice over IP converts your voice into a digital signal, compresses it, and sends it over the internet. A VoIP service provider sets up the call between all participants. On the receiving end, the digital data is then uncompressed into the sound that you hear through your handset or speakerphone. People opt for VoIP because they can make phone calls without any telephone service, which saves them on long-distance charges. If you have internet access, you don’t need to run any extra copper wires. This lets employees work from home or telecommute to the office as well. To call someone using VoIP, you need a SIP-compatible desk phone or a VoIP calling app, which means it is assigned an IP address so that calls can be made from your network. Unlike landline phones, they are capable of high-definition (HD) phone calls. However, you're likely a little curious about the basics of VoIP. Let's explain. Want to learn about VoIP? Upgrading your phone system? Get your free copy of Cloud Phone Systems for Dummies. Get It How Does a VoIP Phone System Work? A VoIP phone system is a technology to make phone calls through your internet connection instead of a regular landline or a mobile network. A VoIP system converts analog voice signals into digital signals over your broadband connection. A VoIP server is used to connect calls to other telephone networks. As long as you have a high-speed internet connection, which includes a router and modem, you are ready to use a VoIP. A typical VoIP configuration involves a desk phone and a SIP server, which is typically a VoIP service provider. It works even better than your traditional landline phone because it offers many more features than what analog phone service could ever provide. Since VoIP runs over the internet, your data is stored securely in the cloud. You can manage the VoIP system through an online dashboard. This dashboard allows users to adjust contacts, business phone numbers, call forwarding, and add new phone numbers. You probably already pay for internet service regardless of which phone system you use. Cable and fiber broadband makes it possible to use internet phone service to cut out the costly telephone company. It’s also much easier to add new features that essential to your business needs. Related: 3 Easy Steps to Get a Business Phone Number Why Do Businesses use VoIP? For a business application, VoIP is an ideal solution to provide employees reliable phone service, and it won’t cost you all that much. One of the top reasons VoIP has far outpaced traditional phone service is the flexibility and professional calling features for one low price. Instead of having a server room with an on-premises PBX (Private Branch Exchange), all you need are configured VoIP desk phones. Don't worry, if you have a PBX, you can still benefit from VoIP technology. We'll get to that in a bit. Hosted VoIP for Business. In the network diagram shown below, you can see that a hosted VoIP phone system consists of many devices, including smartphones, to provide unified business communication. This approach is known as a cloud phone system or a “cloud PBX.” Administrators can manage the permissions and features for each employee along with more sophisticated VoIP features with an online interface. When an employee calls a customer, they pick up the handset and dial them just as they normally would. The IP phone (or app) travels through your Local Area Network (LAN) switch and business router before reaching the VoIP service provider. From there, the VoIP provider establishes the call. If the network path to the called party supports a digital voice signal, then the call quality is upgraded to high definition. Otherwise, a VoIP provider connects the call over the Public Switched Telephone Network (PSTN). Using a hosted VoIP system in your business is that simple. However, for established businesses with a more sophisticated phone system, there are different needs. If the office uses a PBX, you probably also pay for trunked telephone lines. These trunked lines handle voice calls from the PBX to the phone company—and they’re not cheap! Related: What Is Session Initiation Protocol (SIP) & How Does It Work? SIP Trunking for PBX Phone Systems. In some cases, companies are locked into their hybrid phone system due to the costs to replace hardwired phone lines in every office. Since a VoIP uses the Session Initiation Protocol, it can be used to establish multiple lines of calls through the internet. You’ll see in the diagram below SIP trunks accept calls from the VoIP provider. Inbound and outbound calls are funneled in much the same way until it reaches the business location and is hardwired into a PBX. Like old-school analog circuit-switches, the “trunk” acts as a switch to control and funnel data. The most significant benefit for large and small businesses alike is if they have a hardwired telephone system on site. SIP Trunking allows you to mix analog phone systems and new VoIP solutions to eliminate redundancy. SIP Trunking provides multiple channels of voice service on-demand for any IP-based PBX. A SIP Trunk can either be metered or unmetered for $15–$25 each month. They aren’t too hard to set up, either. Simply provide the SIP username and password into your PBX. Mobile Devices & Wi-Fi Connectivity. Thanks to the meteoric rise of mobile devices in the workplace, unified communication is a requirement. Employees are no longer tethered to their desks. For road warriors and remote staff, they can take business calls using nothing more than a VoIP app for their smartphone. In some offices, Ethernet might not be a practical option. The speed of Wi-Fi has improved substantially, which has made way for Wi-Fi calling. While a CAT 5e or CAT 6 connection is optimal, employees can go completely wireless and take calls around the office if you have a strong Wi-Fi signal throughout. Keep an eye on your network congestion bandwidth utilization. You might need to adjust a few network settings for optimal performance. Visit our VoIP Troubleshooting Guide to address these issues once and for all. Can I Use My Existing Phone With VoIP? To use your existing analog phone with VoIP by using an Analog Telephone Adapter (ATA), which can retrofit existing phones with more features and capabilities. In many cases, it may be more desirable to use a SIP phone because of its native functionality to work with VoIP services. Did you know that your fax machine may not work correctly on VoIP? It’s true. Since VoIP compresses and uncompresses the audio over the line into a digital format, the codecs clip little bits along the way for maximum reliability. You can also use an ATA specifically designed for fax machines that can provide full functionality with VoIP. Pro tip: You might not even need a fax machine since you can send and receive faxes with Nextiva’s commercial phone service. If you must keep your analog phones and fax machines, then make sure you pick up a VoIP telephone adapter that works with your phone service. How Much Does a VoIP Phone System Cost? A VoIP phone system costs between $20 and $40 monthly per line. Depending on the number of users, commitment, and features, your costs could be less. A decent IP phone starts at $70, but they can also be leased for as low as a few dollars each month. The total cost of a VoIP phone system should factor in phones, accessories, service, and any one-time setup costs. Nextiva doesn’t charge any setup or activation fees and includes free porting and setup of your business phone number. Top VoIP Phone Features. In addition to some serious cost savings, extensive phone features are another important motivation why so many companies switch to VoIP. Here are the top features offered in a VoIP phone system: Unlimited Calling - Call any phone in the United States and Canada as much as you want. No minutes to track. Instant savings. Online Faxing - Send and receive unlimited faxes, just like email. No hardware or wires. Faxing is finally easy and straightforward. Auto Attendant - Greet callers instantly when they call and direct them to the right person. Give your company an excellent first impression from the moment they call. Call Queues - Handle calls when your team is busy. Callers wait in line for the next agent. You and your customers will love it. HD Voice Quality - Get superior sounding phone calls. The g.722 codec is engineered to eliminate annoying static for vibrant conversations. Conference Lines - Use a dedicated conference line for meetings with up to nine participants. Meet, moderate, and record in HD. Voicemail-to-Email - Get voicemail messages delivered to your inbox. Listen to voicemails and respond through your email. Smartphone App - Answer business calls from on the go. Never miss an important call again. It’s available free for iOS and Android devices. Real-Time Presence - See who’s available to receive calls and chat messages. Live status updates are accurate and straightforward. Team Collaboration - Chat with your team on one system. Flawless video and screen sharing enables you to get work done faster. Text Messaging (SMS) - Send and receive text messages with customers. Perfect for quick updates and appointment reminders. CRM Integrations - Optional integration you can use with your current CRM. Boost productivity with a deeply integrated workflow. These are just the tip of the iceberg when it comes to our VoIP features. If your company has a contact center, you should focus on these call center features to achieve faster ROI. VoIP Phone System Requirements. Thinking about setting up a VoIP phone system in your business? How can you make sure your business is ready? Network Bandwidth. You’ll need a reliable internet connection such as DSL, cable, or fiber from an Internet Service Provider (ISP). The standard bandwidth required for VoIP is 100 Kbps per device. Depending on the type of data and features you’ll use, you might need more bandwidth than the standard. Check your connection quality with our free VoIP speed test. Phones & Devices. Another major factor is ensuring that you have the right devices in place. You must have a SIP phone, a softphone, or an Analog Telephone Adapter to complete calls over VoIP. Here's a quick summary of each: SIP Phones - All VoIP phones are SIP phones and vice-versa. They establish calls by using a VoIP service provider. Nextiva offers a wide variety of VoIP desk phones that offer a ton of functionality for both small businesses and enterprises. Softphones - If you don’t need a traditional telephone, you can just download an app to make VoIP calls using your cellphone, laptop, or desktop. These VoIP applications keep your Caller ID separate because the voice data is handled directly through your VoIP provider. Analog Telephone Adapters - For the holdouts of analog phones, never fear. With an ATA, you can retrofit your phones, so they function correctly over VoIP. They might not have all the conferencing capabilities available, but they offer reliable service. Related: 10 Best VoIP Headsets for Your Business  Selecting the Right VoIP Phone System. Lastly, you need the right VoIP service. Partnering with a trustworthy provider ensures a reliable setup and a pleasant experience. To select the best VoIP phone system, consider the following factors in your decision: Initial and monthly costs Reliability and uptime Availability and quality of customer service Longevity and reputation of the company Ease of use of the products and services Customer reviews and case studies U.S. News and World Report recently rated Nextiva as the best business phone service nationwide. Glassdoor also recently named the company as one a top employer in the United States in 2020. When the people working for your VoIP phone service keeps employees happy, you receive superior service. Get the #1 virtual phone system made for modern work. Get It Cameron JohnsonCameron Johnson is a market segment leader at Nextiva. Along with his articles on Nextiva's blog, Cameron has written for a variety of publications including Inc. and Business.com. Cameron was recently recognized as Utah's Marketer of the Year. About the author. Cameron Johnson Cameron Johnson is a market segment leader at Nextiva. Along with his articles on Nextiva's blog, Cameron has written for a variety of publications including Inc. and Business.com. Cameron was recently recognized as Utah's Marketer of the Year.  
Topics
  • Topic
  • Tf
  • Position
  • voip
  • 75
  • 3
  • phone
  • 71
  • 3
  • call
  • 33
  • 3
  • system
  • 31
  • 3
  • service
  • 27
  • 3
  • phone system
  • 26
  • 3
  • business
  • 22
  • 3
  • voip phone
  • 21
  • 3
  • voip phone system
  • 17
  • 3
  • internet
  • 16
  • 3
  • feature
  • 14
  • 3
  • sip
  • 13
  • 3
  • work
  • 12
  • 3
  • telephone
  • 12
  • 3
  • voice
  • 11
  • 3
  • company
  • 10
  • 3
  • pbx
  • 10
  • 3
  • provider
  • 10
  • 3
  • network
  • 10
  • 3
  • analog
  • 10
  • 3
  • phone service
  • 9
  • 3
  • nextiva
  • 9
  • 3
  • cost
  • 9
  • 3
  • line
  • 9
  • 3
  • connection
  • 8
  • 3
  • cameron
  • 8
  • 3
  • employee
  • 7
  • 3
  • device
  • 7
  • 3
  • phone call
  • 6
  • 3
  • voip service
  • 6
  • 3
  • fax
  • 6
  • 3
  • service provider
  • 5
  • 3
  • call voip
  • 5
  • 3
  • analog phone
  • 5
  • 3
  • app
  • 5
  • 3
  • provide
  • 5
  • 3
  • number
  • 5
  • 3
  • customer
  • 5
  • 3
  • receive
  • 5
  • 3
  • voip service provider
  • 4
  • 3
  • call internet
  • 4
  • 3
  • internet connection
  • 4
  • 3
  • desk phone
  • 4
  • 3
  • phone voip
  • 4
  • 3
  • business phone
  • 4
  • 3
  • phone number
  • 4
  • 3
  • voip provider
  • 4
  • 3
  • wi fi
  • 4
  • 3
  • telephone adapter
  • 4
  • 3
  • sip phone
  • 4
  • 3
  • fax machine
  • 4
  • 3
  • phone system work
  • 3
  • 3
  • phone call internet
  • 3
  • 3
  • business phone number
  • 3
  • 3
  • analog telephone adapter
  • 3
  • 3
  • cameron johnson
  • 3
  • 3
  • system work
  • 3
  • 3
  • voip system
  • 3
  • 3
  • hosted voip
  • 3
  • 3
  • sip trunking
  • 3
  • 3
  • analog telephone
  • 3
  • 3
  • phone feature
  • 3
  • 3
  • send receive
  • 3
  • 3
Result 4
TitleBeginner's Guide: What is VoIP and How Does it Work? (Explained)
Urlhttps://www.wpbeginner.com/beginners-guide/beginners-guide-what-is-voip-and-how-does-it-work-explained/
DescriptionWondering what is VoIP and how does it work behind the scenes? Here, we explain everything you need to know about VoIP (Voice Over Internet Protocol)
Date1 Jan 2022
Organic Position3
H1Beginner’s Guide: What is VoIP and How Does it Work? (Explained)
H2Reader Interactions
H3Leave A Reply Cancel reply
H2WithAnchorsReader Interactions
BodyBeginner’s Guide: What is VoIP and How Does it Work? (Explained) Last updated on January 1st, 2022 by Editorial Staff | Reader DisclosureDisclosure: Our content is reader-supported. This means if you click on some of our links, then we may earn a commission. See how WPBeginner is funded, why it matters, and how you can support us. Shares 209 Share Tweet Share Pin Facebook Messenger WhatsApp Email We are often asked by beginners: what is VoIP and how does VoIP work? If you are a non-techy user, then you may have heard that you could use VoIP to add a business phone number for your website. VoIP is a more cost-effective way to get a business phone number for your website when compared to a traditional phone line. However before making any decision, you need to fully understand what the technology is all about. In this beginner’s guide, we will answer what is VoIP, and how does VoIP work behind the scenes. The goal is to help you understand how VoIP can save you money and help you grow your business. Here is an overview of what we’re going to cover in this guide. You can click on these links to jump straight to different sections. What is VoIP?How does VoIP work? (Behind the scenes)What are the advantages and disadvantages of VoIP?Which is the best VoIP phone service?How to make a call using VoIP?Frequently asked questions about VoIP (FAQs) What is VoIP? VoIP (Voice Over Internet Protocol) is a phone technology that allows you to make and receive phone calls using the internet instead of traditional phone lines. Unlike landline phone systems that are limited to a single desk phone in your office, VoIP lets you make and receive business phone calls from your laptop, tablet, regular smart phone (using an App), and even VoIP compatible office phone sets. Since all calls are made over the internet, it’s extremely cost-efficient for both domestic and long distance (international) calls. Most business VoIP providers offer unlimited minutes without any extra cost. Aside from the cost savings, you also get all the advanced phone features like call waiting, call routing, caller tones, auto-attendant, multiple phone numbers, and more. This is why most small businesses and even enterprise companies are all switching away from traditional phone providers to a business VoIP provider. At WPBeginner, we use Nextiva, a leading VoIP based business phone system. How VoIP Actually Works? (Behind the Scenes Look). To understand how VoIP actually works, we will take a look at what happens when you make or receive a phone call on VoIP phone. When you make a phone call using VoIP, their business phone number app or VoIP adapter takes the analog audio signal and turn it into digital signal. This digital voice data is then sent to the business phone service provider using your internet, and then finally the message is routed to your customer’s phone. This process happens nearly instantly which is why sometimes VoIP sound quality is even better than regular phone calls. How is VoIP different than Traditional Phone System? VoIP works differently behind the scenes from a regular landline phone system. Traditional telephony systems use the circuit switching method for connecting calls. When you make a call through the Public Switched Telephone Network (PSTN), you’re connected to the person on the other end, and they’re connected to you in a circuit. The ‘Circuit switching’ technology is used for more than a 100 years now. It is reliable and still works, but is not the most efficient or cost-effective. VoIP uses the ‘packet switching’ method instead. This means that data is only sent when needed. A brief, instant connection is created each time you speak. The connection doesn’t need to go both ways all the time. You and the person you’re talking to will not normally be both speaking at the same time. Plus, packets of data are sent efficiently. They can use many different paths through the internet. The packages are then put back together when they reach their destination. The data packets can also be compressed to save space. This lets them travel even more quickly through the internet. All of this happens very fast. Unless there’s a problem with your internet connection, you will not notice any delay during the call. While VoIP may sound quite technical and complicated, the main thing to understand is that VoIP is a more efficient method of transferring data during phone calls. You probably have already used VoIP before without knowing it, through an app like Skype or Google Voice. VoIP Pros and Cons Compared. Since we’ve been using a VoIP business phone service in our company for years, it’s fair to say that we know a thing or two about the pros and cons. Here’s our detailed analysis of the pros and cons of VoIP. VoIP Advantages – Benefits of Using VoIP. Switching from a traditional telephone company’s service to a cloud based VoIP phone system has many benefits. Lower Monthly Cost One of the biggest advantage of VoIP is that you have lower monthly cost on both domestic and international calls. Most VoIP phone providers will often include unlimited domestic calls for free. International calls are normally very cheap, too. Aside from that, you’ll also save money on repair and maintenance service expenses that you currently pay your landline phone provider. Take calls from anywhere – Completely Portable With VoIP, you don’t need to be in an office, on-premise, sitting by your desk phone to take phone calls. You can take incoming calls from wherever you are using an app on your phone, tablet, or laptop computer. This is a big advantage for teams that are working remotely or out on the field. It is also great if you’re traveling. Advanced business phone features VoIP solutions normally include lots of extra business phone features. For instance, you can set up conference calls easily with VoIP. Plus, most VoIP service providers offer a virtual receptionist, hold music, call waiting, voicemail to email or text, and much more. You can even get advanced telecommunications functionality like video conferencing. This may also get you additional cost savings because often traditional telephone service providers charge recurring fees for these add-ons. Improved Scalability and Flexibility Another advantage of VoIP is higher scalability. Whether you’re hiring more staff or opening a new branch office in a new city, VoIP makes it easy to grow. Unlike a traditional phone service that would require to spend money on expensive hardware on dedicated line, VoIP lets you add your team members with just a few clicks inside your account dashboard. Since VoIP works on all smart phones, you can even cut additional equipment cost and free up desk space by having your team members install the app on their personal phone. VoIP Disadvantages – Drawbacks of Using VoIP. While VoIP is an amazing technology, it may not be perfect for everyone. There are a couple of VoIP disadvantages that you should be aware of. You need a good internet connection to make telephone calls As we explained in the how VoIP works section, you need to have an internet connection to make phone calls. If your internet is slow, then your call quality may be impacted. The good thing is that VoIP technology doesn’t use as much bandwidth as you might think. A good connection with less than 70ms ping and at least 500 kbps of upload speed is good enough for VoIP calls. However if you have a lot of team members in your office, then you may need to look at your bandwidth needs for the number of concurrent calls your business will be making at the same time. You need to account for power outages Regular phone service works during power outages. But you cannot make VoIP calls if you don’t have power or access to the internet. Typically, most offices have wireless internet powered by WiFi routers. These routers need electricity, so if your building experiences power outage, then your internet can also go down which will impact your VoIP service. The way we mitigate this in our office is by using a battery backup system for our internet router. Since our internet is provided by a different company than our electricity, we never have both outages at the same time. Furthermore, since our team members use the VoIP app on their phone, they can always use their mobile data to make business phone calls. You will need to retrain your staff on the new system Switching to a new telephone system means you need to train your staff on how to use it. Luckily, most VoIP services are designed to be as straightforward and intuitive as possible. This means it should be easy to train team members on how to use the cloud phone systems, even if your employees are working remotely. Which is the Best VoIP Phone Service? Here at WPBeginner, we use and recommend Nextiva as the best VoIP phone service. They offer a free local or toll-free number with all of their plans. Nextiva comes with all the essential features you need including call routing, unlimited domestic voice calls, unlimited business SMS messaging, voicemail to email/text, number porting, caller ID, caller forwarding, custom greetings, auto attendant, hold music, online VoIP fax, phone extension for team members, and more. They have an easy to use smart phone app for Android / iPhone (iOS), and a softphone app for your computer. For Enterprise customers, then even let you convert your existing PBX (private branch exchange) system into a cloud phone system using SIP (session initiation protocol) trunking. This means you can easily transfer calls to different department and employees using your existing system and local area network. Nextiva also has several useful advanced features. For instance, you can connect your VoIP phone system with real-time live chat and with your CRM system to help you create a unified communications system. Plus, their support team is extremely helpful, making it really easy for you to get started. This is why we use Nextiva for our business. Other great VoIP alternatives to Nextiva include: RingCentral – a big, well-known VoIP company that costs a little more than Nextiva. They have all the features you need, and they offer screen sharing and conferencing tools too.Ooma – an easy-to-setup option that offers toll-free numbers plus all the features you’d expect. You get 500 minutes included for free, but need to pay extra for more.Grasshopper – another great business phone service for solpreneurs and small businesses that offers all the essential features.Phone.com – a good IP telephone for businesses working with Canada and many EU countries, as these locations are covered as local calls. How to Make a Call Using VoIP. To make a call using VoIP, you first need a VoIP business phone service like Nextiva. You also need an internet connection with good bandwidth. This normally means using a broadband internet connection. Then, you can make a call using VoIP with any of the following devices: Your existing phone handset. This can be connected to the VoIP system using an ATA (analog telephone adapter) which gives it an IP address. Essentially, you just plug your phone into the ATA instead of straight into your wall socket.A special IP phone. This looks and works like a normal phone. It has a handset with buttons that slots into a charging cradle. However, instead of the a RJ-11 phone connector, the IP phone has an RJ-45 connector. This means it plugs into an ethernet port on your router, not into a phone connector. Depending on the season, some VoIP companies may give you a free phone handset.Your computer. You will need an app that lets you make calls over VoIP. This is sometimes called a ‘softphone’. Of course, you will also need a sound card plus a headset, or a microphone and speakers. You will also need internet connectivity, either by ethernet or wifi. Most well-known VoIP companies have apps for both Windows and Mac.Your mobile phone. Again, you will need the right app and a wifi connection. You can also use a mobile data plan with 4G or higher speeds. Most VoIP apps will work on all smart phone such as Android mobile devices and Apple iPhone (iOS). Frequently Asked Questions about VoIP Phone (VoIP FAQs). There are lots of different business VoIP providers, and it can be hard to know which one is the best for your needs. Over the years we have helped thousands of beginners choose the best VoIP phone platform. We have heard almost every possible question about VoIP that you can think of. Following are the answers to some of the most commonly asked questions about VoIP (Voice over IP). How much do domestic vs international calls cost on VoIP? Most VoIP services will include unlimited domestic calls for no extra charge. However, some cheaper VoIP services charge based on the number of minutes you use. The international rates will vary depending on the VoIP provider you use, but these rates will almost always be more affordable than traditional landline rates for international calls. Can you keep your existing phone number on VoIP? Yes, when switching from traditional landline phone to business VoIP phone, you can ask for number porting which lets you keep your existing business phone number. Most good VoIP services let you do this, but please check with them before signing up. Is there a VoIP backup if your internet connection goes down? Some VoIP services have a backup in case your broadband connection is down or your power goes out. For instance, Nextiva can automatically forward calls to a cell phone. Does VoIP offer call routing or extensions for team members? Yes, most good VoIP phone service providers include call routing, phone extensions, call queue, and auto attendant at no additional cost. We hope this article helped answer the questions of what is VoIP and how does it work behind the scenes. You might also like our comparison of the best website builder platforms, and best email marketing services to grow your business. If you liked this article, then please subscribe to our YouTube Channel for WordPress video tutorials. You can also find us on Twitter and Facebook. Popular on WPBeginner Right Now!12+ Things You MUST DO Before Changing WordPress ThemesRevealed: Why Building an Email List is so Important Today (6 Reasons)How to Install Google Analytics in WordPress for BeginnersHow to Properly Move Your Blog from WordPress.com to WordPress.orgDisclosure: Our content is reader-supported. This means if you click on some of our links, then we may earn a commission. See how WPBeginner is funded, why it matters, and how you can support us.About the Editorial Staff . Editorial Staff at WPBeginner is a team of WordPress experts led by Syed Balkhi. Trusted by over 1.3 million readers worldwide. The Ultimate WordPress ToolkitGet FREE access to our toolkit – a collection of WordPress related products and resources that every professional should have!Download NowReader Interactions. Leave A Reply Cancel reply. Featured in Copyright © 2009 - 2022 WPBeginner LLC. All Rights Reserved. WPBeginner® is a registered trademark. Managed by Awesome Motive | WordPress hosting by SiteGround | WordPress Security by Sucuri. I need help with… Popular searches: Starting a Blog WordPress SEO WordPress Performance WordPress Errors WordPress Security Building an Online Store
Topics
  • Topic
  • Tf
  • Position
  • voip
  • 94
  • 4
  • phone
  • 71
  • 4
  • call
  • 44
  • 4
  • business
  • 25
  • 4
  • service
  • 21
  • 4
  • internet
  • 19
  • 4
  • system
  • 17
  • 4
  • work
  • 15
  • 4
  • business phone
  • 13
  • 4
  • number
  • 12
  • 4
  • cost
  • 12
  • 4
  • app
  • 12
  • 4
  • wordpress
  • 12
  • 4
  • voip work
  • 11
  • 4
  • voip phone
  • 11
  • 4
  • provider
  • 11
  • 4
  • connection
  • 11
  • 4
  • call voip
  • 10
  • 4
  • traditional
  • 10
  • 4
  • team
  • 10
  • 4
  • phone call
  • 9
  • 4
  • phone service
  • 9
  • 4
  • nextiva
  • 9
  • 4
  • voip voip
  • 8
  • 4
  • phone system
  • 8
  • 4
  • office
  • 8
  • 4
  • company
  • 8
  • 4
  • mean
  • 8
  • 4
  • wpbeginner
  • 8
  • 4
  • free
  • 8
  • 4
  • good
  • 8
  • 4
  • phone number
  • 7
  • 4
  • voip service
  • 7
  • 4
  • team member
  • 7
  • 4
  • offer
  • 7
  • 4
  • feature
  • 7
  • 4
  • switching
  • 7
  • 4
  • data
  • 7
  • 4
  • telephone
  • 7
  • 4
  • member
  • 7
  • 4
  • internet connection
  • 6
  • 4
  • time
  • 6
  • 4
  • voip company
  • 5
  • 4
  • traditional phone
  • 5
  • 4
  • question voip
  • 5
  • 4
  • international call
  • 5
  • 4
  • business phone number
  • 4
  • 4
  • phone call voip
  • 4
  • 4
  • business phone service
  • 4
  • 4
  • landline phone
  • 4
  • 4
  • smart phone
  • 4
  • 4
  • business voip
  • 4
  • 4
  • voip provider
  • 4
  • 4
  • call routing
  • 4
  • 4
  • service provider
  • 4
  • 4
  • voip work scene
  • 3
  • 4
  • asked question voip
  • 3
  • 4
  • business voip provider
  • 3
  • 4
  • voip business phone
  • 3
  • 4
  • voip phone service
  • 3
  • 4
  • editorial staff
  • 3
  • 4
  • click link
  • 3
  • 4
  • work scene
  • 3
  • 4
  • understand voip
  • 3
  • 4
  • asked question
  • 3
  • 4
  • phone app
  • 3
  • 4
  • phone feature
  • 3
  • 4
  • auto attendant
  • 3
  • 4
  • switching traditional
  • 3
  • 4
  • phone provider
  • 3
  • 4
  • voip business
  • 3
  • 4
  • pro con
  • 3
  • 4
  • unlimited domestic
  • 3
  • 4
  • phone voip
  • 3
  • 4
  • good voip
  • 3
  • 4
  • voip call
  • 3
  • 4
  • power outage
  • 3
  • 4
Result 5
TitleHow VoIP Works | HowStuffWorks
Urlhttps://computer.howstuffworks.com/ip-telephony.htm
DescriptionVoIP lets you make calls through your computer, sometimes for free. Learn how VoIP works, find reviews of VoIP phones and learn how to make free VoIP calls
Date13 Apr 2021
Organic Position4
H1How VoIP Works
H2Using VoIP
VoIP: Circuit Switching
VoIP: Packet Switching
Advantages of Using VoIP
Disadvantages of Using VoIP
VoIP: Codecs
VoIP: Soft Switches and Protocols
VoIP Call Monitoring
VoIP Cell Phones
Use of VoIP in Amateur Radio
Lots More Information
Games
More Awesome Stuff
H3Protocols
H.323 Protocol Suite
Video
Audio
Data
Transport
Voice Over IP FAQ
Related Articles
More Great Links
Sources
Cite This!
Try Our Crossword Puzzles!
Can You Guess the Answer?
Try Our Sudoku Puzzles!
H2WithAnchorsUsing VoIP
VoIP: Circuit Switching
VoIP: Packet Switching
Advantages of Using VoIP
Disadvantages of Using VoIP
VoIP: Codecs
VoIP: Soft Switches and Protocols
VoIP Call Monitoring
VoIP Cell Phones
Use of VoIP in Amateur Radio
Lots More Information
Games
More Awesome Stuff
BodyHow VoIP Works By: Robert Valdes & Dave Roos  |  Updated: Apr 13, 2021Share Content on TwitterShare Content on FacebookShare Content on LinkedInShare Content on FlipboardShare Content on RedditShare Content via Email "" Videocalls? Also possible now. Chad Springer / Getty ImagesIf you've never heard of VoIP, get ready to change the way you think about long-distance phone calls. VoIP, or Voice over Internet Protocol, is a method for taking analog audio signals, like the kind you hear when you talk on the phone, and turning them into digital data that can be transmitted over the Internet.How is this useful? VoIP can turn a standard Internet connection into a way to place free phone calls. The practical upshot of this is that by using some of the free VoIP software that is available to make Internet phone calls, you're bypassing the phone company (and its charges) entirely.AdvertisementVoIP is a revolutionary technology that has the potential to completely rework the world's phone systems. VoIP providers like Vonage have already been around for a while and are growing steadily. Major carriers like AT&T are already setting up VoIP calling plans in several markets around the United States, and the FCC is looking seriously at the potential ramifications of VoIP service.Above all else, VoIP is basically a clever "reinvention of the wheel." In this article, we'll explore the principles behind VoIP, its applications and the potential of this emerging technology, which will more than likely one day replace the traditional phone system entirely.The interesting thing about VoIP is that there is not just one way to place a call. There are three different "flavors" of VoIP service in common use today:ATA -- The simplest and most common way is through the use of a device called an ATA (analog telephone adaptor). The ATA allows you to connect a standard phone to your computer or your Internet connection for use with VoIP. The ATA is an analog-to-digital converter. It takes the analog signal from your traditional phone and converts it into digital data for transmission over the Internet. Providers like Vonage and AT&T CallVantage are bundling ATAs free with their service. You simply crack the ATA out of the box, plug the cable from your phone that would normally go in the wall socket into the ATA, and you're ready to make VoIP calls. Some ATAs may ship with additional software that is loaded onto the host computer to configure it; but in any case, it's a very straightforward setup.IP Phones -- These specialized phones look just like normal phones with a handset, cradle and buttons. But instead of having the standard RJ-11 phone connectors, IP phones have an RJ-45 Ethernet connector. IP phones connect directly to your router and have all the hardware and software necessary right onboard to handle the IP call. Wi-Fi phones allow subscribing callers to make VoIP calls from any Wi-Fi hot spot.Computer-to-computer -- This is certainly the easiest way to use VoIP. You don't even have to pay for long-distance calls. There are several companies offering free or very low-cost software that you can use for this type of VoIP. All you need is the software, a microphone, speakers, a sound card and an Internet connection, preferably a fast one like you would get through a cable or DSL modem. Except for your normal monthly ISP fee, there is usually no charge for computer-to-computer calls, no matter the distance.If you're interested in trying VoIP, then you should check out some of the free VoIP software available on the Internet. You should be able to download and set it up in about three to five minutes. Get a friend to download the software, too, and you can start tinkering with VoIP to get a feel for how it works.Next, we'll look at exactly how VoIP is used.AdvertisementContentsUsing VoIPVoIP: Circuit SwitchingVoIP: Packet SwitchingAdvantages of Using VoIPDisadvantages of Using VoIPVoIP: CodecsVoIP: Soft Switches and ProtocolsVoIP Call MonitoringVoIP Cell PhonesUse of VoIP in Amateur RadioUsing VoIP. "" VoIP phone users can make calls from anywhere there's a broadband connection. Photographer: Showface | Agency: DreamstimeChances are good you're already making VoIP calls any time you place a long-distance call. Phone companies use VoIP to streamline their networks. By routing thousands of phone calls through a circuit switch and into an IP gateway, they can seriously reduce the bandwidth they're using for the long haul. Once the call is received by a gateway on the other side of the call, it's decompressed, reassembled and routed to a local circuit switch.Although it will take some time, you can be sure that eventually all of the current circuit-switched networks will be replaced with packet-switching technology (more on packet switching and circuit switching later). IP telephony just makes sense, in terms of both economics and infrastructure requirements. More and more businesses are installing VoIP systems, and the technology will continue to grow in popularity as it makes its way into our homes. Perhaps the biggest draws to VoIP for the home users that are making the switch are price and flexibility.AdvertisementWith VoIP, you can make a call from anywhere you have broadband connectivity. Since the IP phones or ATAs broadcast their info over the Internet, they can be administered by the provider anywhere there's a connection. So business travelers can take their phones or ATAs with them on trips and always have access to their home phone. Another alternative is the softphone. A softphone is client software that loads the VoIP service onto your desktop or laptop. The Vonage softphone has an interface on your screen that looks like a traditional telephone. As long as you have a headset/microphone, you can place calls from your laptop anywhere in the broadband-connected world.Most VoIP companies are offering minute-rate plans structured like cell phone bills for as little as $30 per month. On the higher end, some offer unlimited plans for $79. With the elimination of unregulated charges and the suite of free features that are included with these plans, it can be quite a savings.Most VoIP companies provide the features that normal phone companies charge extra for when they are added to your service plan. VoIP includes:Caller IDCall waitingCall transferRepeat dialReturn callThree-way callingThere are also advanced call-filtering options available from some carriers. These features use caller ID information to allow you make a choice about how calls from a particular number are handled. You can:Forward the call to a particular numberSend the call directly to voice mailGive the caller a busy signalPlay a "not-in-service" messageSend the caller to a funny rejection hotlineWith many VoIP services, you can also check voice mail via the Web or attach messages to an e-mail that is sent to your computer or handheld. Not all VoIP services offer all of the features above. Prices and services vary, so if you're interested, it's best to do a little shopping.Now that we've looked at VoIP in a general sense, let's look more closely at the components that make the system work. To understand how VoIP really works and why it's an improvement over the traditional phone system, it helps to first understand how a traditional phone system works.AdvertisementVoIP: Circuit Switching. Existing phone systems are driven by a very reliable but somewhat inefficient method for connecting calls called circuit switching.Circuit switching is a very basic concept that has been used by telephone networks for more than 100 years. When a call is made between two parties, the connection is maintained for the duration of the call. Because you're connecting two points in both directions, the connection is called a circuit. This is the foundation of the Public Switched Telephone Network (PSTN).AdvertisementHere's how a typical telephone call works:You pick up the receiver and listen for a dial tone. This lets you know that you have a connection to the local office of your telephone carrier.You dial the number of the party you wish to talk to.The call is routed through the switch at your local carrier to the party you are calling.A connection is made between your telephone and the other party's line using several interconnected switches along the way.The phone at the other end rings, and someone answers the call.The connection opens the circuit.You talk for a period of time and then hang up the receiver.When you hang up, the circuit is closed, freeing your line and all the lines in between.Let's say you talk for 10 minutes. During this time, the circuit is continuously open between the two phones. In the early phone system, up until 1960 or so, every call had to have a dedicated wire stretching from one end of the call to the other for the duration of the call. So if you were in New York and you wanted to call Los Angeles, the switches between New York and Los Angeles would connect pieces of copper wire all the way across the United States. You would use all those pieces of wire just for your call for the full 10 minutes. You paid a lot for the call, because you actually owned a 3,000-mile-long copper wire for 10 minutes.Telephone conversations over today's traditional phone network are somewhat more efficient and they cost a lot less. Your voice is digitized, and your voice along with thousands of others can be combined onto a single fiber optic cable for much of the journey (there's still a dedicated piece of copper wire going into your house, though). These calls are transmitted at a fixed rate of 64 kilobits per second (Kbps) in each direction, for a total transmission rate of 128 Kbps. Since there are 8 kilobits (Kb) in a kilobyte (KB), this translates to a transmission of 16 KB each second the circuit is open, and 960 KB every minute it's open. In a 10-minute conversation, the total transmission is 9,600 KB, which is roughly equal to 10 megabytes (check out How Bits and Bytes Work to learn about these conversions). If you look at a typical phone conversation, much of this transmitted data is wasted.Next we'll talk about packet switching.AdvertisementVoIP: Packet Switching. A packet-switched phone network is the alternative to circuit switching. It works like this: While you're talking, the other party is listening, which means that only half of the connection is in use at any given time. Based on that, we can surmise that we could cut the file in half, down to about 4.7 MB, for efficiency. Plus, a significant amount of the time in most conversations is dead air -- for seconds at a time, neither party is talking. If we could remove these silent intervals, the file would be even smaller. Then, instead of sending a continuous stream of bytes (both silent and noisy), what if we sent just the packets of noisy bytes when you created them?Data networks do not use circuit switching. Your Internet connection would be a lot slower if it maintained a constant connection to the Web page you were viewing at any given time. Instead, data networks simply send and retrieve data as you need it. And, instead of routing the data over a dedicated line, the data packets flow through a chaotic network along thousands of possible paths. This is called packet switching.AdvertisementWhile circuit switching keeps the connection open and constant, packet switching opens a brief connection -- just long enough to send a small chunk of data, called a packet, from one system to another. It works like this:The sending computer chops data into small packets, with an address on each one telling the network devices where to send them.Inside of each packet is a payload. The payload is a piece of the e-mail, a music file or whatever type of file is being transmitted inside the packet.The sending computer sends the packet to a nearby router and forgets about it. The nearby router send the packet to another router that is closer to the recipient computer. That router sends the packet along to another, even closer router, and so on.When the receiving computer finally gets the packets (which may have all taken completely different paths to get there), it uses instructions contained within the packets to reassemble the data into its original state.Packet switching is very efficient. It lets the network route the packets along the least congested and cheapest lines. It also frees up the two computers communicating with each other so that they can accept information from other computers, as well.Next, we'll look at the advantages of using VoIP.AdvertisementAdvantages of Using VoIP. VoIP technology uses the Internet's packet-switching capabilities to provide phone service. VoIP has several advantages over circuit switching. For example, packet switching allows several telephone calls to occupy the amount of space occupied by only one in a circuit-switched network. Using PSTN, that 10-minute phone call we talked about earlier consumed 10 full minutes of transmission time at a cost of 128 Kbps. With VoIP, that same call may have occupied only 3.5 minutes of transmission time at a cost of 64 Kbps, leaving another 64 Kbps free for that 3.5 minutes, plus an additional 128 Kbps for the remaining 6.5 minutes. Based on this simple estimate, another three or four calls could easily fit into the space used by a single call under the conventional system. And this example doesn't even factor in the use of data compression, which further reduces the size of each call.Let's say that you and your friend both have service through a VoIP provider. You both have your analog phones hooked up to the service-provided ATAs. Let's take another look at that typical telephone call, but this time using VoIP over a packet-switched network:AdvertisementYou pick up the receiver, which sends a signal to the ATA.The ATA receives the signal and sends a dial tone. This lets you know that you have a connection to the Internet.You dial the phone number of the party you wish to talk to. The tones are converted by the ATA into digital data and temporarily stored.The phone number data is sent in the form of a request to your VoIP company's call processor. The call processor checks it to ensure that it's in a valid format.The call processor determines to whom to map the phone number. In mapping, the phone number is translated to an IP address (more on this later). The soft switch connects the two devices on either end of the call. On the other end, a signal is sent to your friend's ATA, telling it to ask the connected phone to ring.Once your friend picks up the phone, a session is established between your computer and your friend's computer. This means that each system knows to expect packets of data from the other system. In the middle, the normal Internet infrastructure handles the call as if it were e-mail or a Web page. Each system must use the same protocol to communicate. The systems implement two channels, one for each direction, as part of the session.You talk for a period of time. During the conversation, your system and your friend's system transmit packets back and forth when there is data to be sent. The ATAs at each end translate these packets as they are received and convert them to the analog audio signal that you hear. Your ATA also keeps the circuit open between itself and your analog phone while it forwards packets to and from the IP host at the other end.You finish talking and hang up the receiver.When you hang up, the circuit is closed between your phone and the ATA.The ATA sends a signal to the soft switch connecting the call, terminating the session.Probably one of the most compelling advantages of packet switching is that data networks already understand the technology. By migrating to this technology, telephone networks immediately gain the ability to communicate the way computers do.It will still be at least a decade before communications companies can make the full switch over to VoIP. As with all emerging technologies, there are certain hurdles that have to be overcome. We'll look at those in the next section.AdvertisementDisadvantages of Using VoIP. The current Public Switched Telephone Network is a robust and fairly bulletproof system for delivering phone calls. Phones just work, and we've all come to depend on that. On the other hand, computers, e-mail and other related devices are still kind of flaky. Let's face it -- few people really panic when their e-mail goes down for 30 minutes. It's expected from time to time. On the other hand, a half hour of no dial tone can easily send people into a panic. So what the PSTN may lack in efficiency it more than makes up for in reliability. But the network that makes up the Internet is far more complex and therefore functions within a far greater margin of error. What this all adds up to is one of the major flaws in VoIP: reliability.First of all, VoIP is dependant on wall power. Your current phone runs on phantom power that is provided over the line from the central office. Even if your power goes out, your phone (unless it is a cordless) still works. With VoIP, no power means no phone. A stable power source must be created for VoIP.Another consideration is that many other systems in your home may be integrated into the phone line. Digital video recorders, digital subscription TV services and home security systems all use a standard phone line to do their thing. There's currently no way to integrate these products with VoIP. The related industries are going to have to get together to make this work.Emergency 911 calls also become a challenge with VoIP. As stated before, VoIP uses IP-addressed phone numbers, not NANP phone numbers. There's no way to associate a geographic location with an IP address. So if the caller can't tell the 911 operator where he is located, then there's no way to know which call center to route the emergency call to and which EMS should respond. To fix this, perhaps geographical information could somehow be integrated into the packets.Because VoIP uses an Internet connection, it's susceptible to all the hiccups normally associated with home broadband services. All of these factors affect call quality:latency, jitter and packet loss. Phone conversations can become distorted, garbled or lost because of transmission errors. Some kind of stability in Internet data transfer needs to be guaranteed before VoIP could truly replace traditional phonesVoIP is susceptible to worms, viruses and hacking, although this is very rare and VoIP developers are working on VoIP encryption to counter this.Another issue associated with VoIP is having a phone system dependant on individual PCs of varying specifications and power. A call can be affected by processor drain. Let's say you are chatting away on your softphone, and you decide to open a program that saps your processor. Quality loss will become immediately evident. In a worst case scenario, your system could crash in the middle of an important call. In VoIP, all phone calls are subject to the limitations of normal computer issues.One of the hurdles that was overcome some time ago was the conversion of the analog audio signal your phone receives into packets of data. How it is that analog audio is turned into packets for VoIP transmission? The answer is codecs.AdvertisementAdvertisementVoIP: Codecs. "" VoIP software processes and routes the calls. ©2007 HowStuffWorks A codec, which stands for coder-decoder, converts an audio signal into compressed digital form for transmission and then back into an uncompressed audio signal for replay. It's the essence of VoIP.Codecs accomplish the conversion by sampling the audio signal several thousand times per second. For instance, a G.711 codec samples the audio at 64,000 times a second. It converts each tiny sample into digitized data and compresses it for transmission. When the 64,000 samples are reassembled, the pieces of audio missing between each sample are so small that to the human ear, it sounds like one continuous second of audio signal. There are different sampling rates in VoIP depending on the codec being used:Advertisement64,000 times per second32,000 times per second8,000 times per secondA G.729A codec has a sampling rate of 8,000 times per second and is the most commonly used codec in VoIP.Codecs use advanced algorithms to help sample, sort, compress and packetize audio data. The CS-ACELP algorithm (CS-ACELP = conjugate-structure algebraic-code-excited linear prediction) is one of the most prevalent algorithms in VoIP. CS-ACELP organizes and streamlines the available bandwidth. Annex B is an aspect of CS-ACELP that creates the transmission rule, which basically states "if no one is talking, don't send any data." The efficiency created by this rule is one of the greatest ways in which packet switching is superior to circuit switching. It's Annex B in the CS-ACELP algorithm that's responsible for that aspect of the VoIP call.The codec works with the algorithm to convert and sort everything out, but it's not any good without knowing where to send the data. In VoIP, that task is handled by soft switches.E.164 is the name given to the standard for the North American Numbering Plan (NANP). This is the numbering system that phone networks use to know where to route a call based on the dialed numbers. A phone number is like an address:(313) 555-1212313 = State555 = City1212 = Street addressThe switches use "313" to route the phone call to the area code's region. The "555" prefix sends the call to a central office, and the network routes the call using the last four digits, which are associated with a specific location. Based on that system, no matter where you're in the world, the number combination "(313) 555" always puts you in the same central office, which has a switch that knows which phone is associated with "1212."The challenge with VoIP is that IP-based networks don't read phone numbers based on NANP. They look for IP addresses, which look like this:192.158.10.7IP addresses correspond to a particular device on the network like a computer, a router, a switch, a gateway or a telephone. However, IP addresses are not always static. They're assigned by a DHCP server on the network and change with each new connection. VoIP's challenge is translating NANP phone numbers to IP addresses and then finding out the current IP address of the requested number. This mapping process is handled by a central call processor running a soft switch.The central call processor is hardware that runs a specialized database/mapping program called a soft switch. Think of the user and the phone or computer as one package -- man and machine. That package is called the endpoint. The soft switch connects endpoints.Soft switches know:Where the network's endpoint isWhat phone number is associated with that endpointThe endpoint's current IP addressWe'll talk more about soft switches and protocols next.AdvertisementVoIP: Soft Switches and Protocols. "" Customer call centers like this hotline require consistent call quality and many rely on VoIP technology. Tim Boyle/Getty ImagesThe soft switch contains a database of users and phone numbers. If it doesn't have the information it needs, it hands off the request downstream to other soft switches until it finds one that can answer the request. Once it finds the user, it locates the current IP address of the device associated with that user in a similar series of requests. It sends back all the relevant information to the softphone or IP phone, allowing the exchange of data between the two endpoints.Soft switches work in tandem with network devices to make VoIP possible. For all these devices to work together, they must communicate in the same way. This communication is one of the most important aspects that will have to be refined for VoIP to take off. AdvertisementProtocols. As we've seen, on each end of a VoIP call we can have any combination of an analog, soft or IP phone as acting as a user interface, ATAs or client software working with a codec to handle the digital-to-analog conversion, and soft switches mapping the calls. How do you get all of these completely different pieces of hardware and software to communicate efficiently to pull all of this off? The answer is protocols.There are several protocols currently used for VoIP. These protocols define ways in which devices like codecs connect to each other and to the network using VoIP. They also include specifications for audio codecs. The most widely used protocol is H.323, a standard created by the International Telecommunication Union (ITU). H.323 is a comprehensive and very complex protocol that was originally designed for video conferencing. It provides specifications for real-time, interactive videoconferencing, data sharing and audio applications such as VoIP. Actually a suite of protocols, H.323 incorporates many individual protocols that have been developed for specific applications.H.323 Protocol Suite. Video. H.261H.263Audio. G.711G.722G.723.1G.728G.729Data. T.122T.124T.125T.126T.127Transport. H.225H.235H.245H.450.1H.450.2H.450.3RTPX.224.0As you can see, H.323 is a large collection of protocols and specifications. That's what allows it to be used for so many applications. The problem with H.323 is that it's not specifically tailored to VoIP.An alternative to H.323 emerged with the development of Session Initiation Protocol (SIP). SIP is a more streamlined protocol, developed specifically for VoIP applications. Smaller and more efficient than H.323, SIP takes advantage of existing protocols to handle certain parts of the process. Media Gateway Control Protocol (MGCP) is a third commonly used VoIP protocol that focuses on endpoint control. MGCP is geared toward features like call waiting. You can learn more about the architecture of these protocols at Protocols.com: Voice Over IP.One of the challenges facing the worldwide use of VoIP is that these three protocols are not always compatible. VoIP calls going between several networks may run into a snag if they hit conflicting protocols. Since VoIP is a relatively new technology, this compatibility issue will continue to be a problem until a governing body creates a standard universal protocol for VoIP.VoIP is a vast improvement over the current phone system in efficiency, cost and flexibility. Like any emerging technology, VoIP has some challenges to overcome, but it's clear that developers will keep refining this technology until it eventually replaces the current phone system.VoIP TermsThe central call processor is a piece of hardware that runs the soft switch. AdvertisementVoIP Call Monitoring. VoIP has its distinct advantages and disadvantages. The greatest advantage of VoIP is price and the greatest disadvantage is call quality. For businesses who deploy VoIP phone networks -- particularly those who operate busy call centers (customer service, tech support, telemarketing, et cetera) -- call quality issues are both inevitable and unacceptable. To analyze and fix call quality issues, most of these businesses use a technique called VoIP call monitoring.VoIP call monitoring, also known as quality monitoring (QM), uses hardware and software solutions to test, analyze and rate the overall quality of calls made over a VoIP phone network [source: ManageEngine]. Call monitoring is a key component of a business's overall quality of service (QoS) plan.AdvertisementCall monitoring hardware and software uses various mathematical algorithms to measure the quality of a VoIP call and generate a score. The most common score is called the mean opinion score (MOS). The MOS is measured on a scale of one to five, although 4.4 is technically the highest score possible on a VoIP network [source: TestYourVoIP.com]. An MOS of 3.5 or above is considered a "good call" [source: ManageEngine].To come up with the MOS, call monitoring hardware and software analyzes several different call quality parameters, the most common being:Latency -- This is the time delay between two ends of a VoIP phone conversation. It can be measured either one-way or round trip. Round-trip latency contributes to the "talk-over effect" experienced during bad VoIP calls, where people end up talking over each other because they think the other person has stopped speaking. A round-trip latency of over 300 millisecond is considered poor [source: TestYourVoIP.com].Jitter -- Jitter is latency caused by packets arriving late or in the wrong order [source: SearchVoIP.com]. Most VoIP networks try to get rid of jitter with something called a jitter buffer that collects packets in small groups, puts them in the right order and delivers them to the end user all at once. VoIP callers will notice a jitter of 50 msec or greater [source: TestYourVoIP.com].Packet loss -- Part of the problem with a jitter buffer is that sometimes it gets overloaded and late-arriving packets get "dropped" or lost [source: TestYourVoIP.com]. Sometimes the packets will get lost sporadically throughout a conversation (random loss) and sometimes whole sentences will get dropped (burstyloss) [source: TestYourVoIP.com]. Packet loss is measured as a percentage of lost packets to received packets.There are two different types of call monitoring: active and passive. Active (or subjective) call monitoring happens before a company deploys its VoIP network. Active monitoring is often done by equipment manufacturers and network specialists who use a company's VoIP network exclusively for testing purposes [source: VoIP Troubleshooter.com]. Active testing can't occur once a VoIP network is deployed and employees are already using the system.Passive call monitoring analyzes VoIP calls in real-time while they're being made by actual users [source: VoIP Troubleshooter.com]. Passive call monitoring can detect network traffic problems, buffer overloads and other glitches that network administrators can fix in network down time.Another method for call monitoring is recording VoIP phone calls for later analysis. This type of analysis is limited, however, to what can be heard during the call, not what's happening on the actual network. This type of monitoring is usually done by human beings, not computers, and is called quality assurance.Next we'll talk about making VoIP calls using cell phones.AdvertisementVoIP Cell Phones. Dual-mode cell phones contain both a regular cellular radio and a Wi-Fi (802.11 b/g) radio. The Wi-Fi radio enables the cell phone to connect to a wireless Internet network through a wireless router. If you have a wireless Internet router in your home, or if you're sitting at a Starbucks with wireless Internet access, you can use your cell phone to make VoIP calls. Here's how it works:When the cell phone is in range of a wireless Internet network, the phone automatically recognizes and connects to the network.Any calls you initiate on the wireless network are routed through the Internet as VoIP calls. With [email protected], all VoIP calls are free.If the phone is out of range of a wireless Internet signal, it automatically switches over to the regular cellular network and calls are charged as normal.Dual-mode phones can hand off seamlessly from Wi-Fi to cellular (and vice versa) in the middle of a call as you enter and exit Wi-Fi networks.Similar to dual-mode cell phones are Wi-Fi phones. Wi-Fi phones aren't technically cell phones because they only have a Wi-Fi radio, not a cellular radio. Wi-Fi phones look like cell phones (small, lightweight handsets), but can only make calls when connected to a wireless Internet network. That means all Wi-Fi phone calls are VoIP calls.AdvertisementWi-Fi phones are useful in large companies and offices with their own extensive wireless networks. And could prove to be the next big thing, with the expanding market for municipal Wi-Fi. [source: Dr. Dobb's Portal]. Imagine that your entire city was covered by a high-speed wireless network. That means cheap (if not free) VoIP calls wherever you go.In England, a company called Hutchinson 3G (or simply 3) has partnered with the popular VoIP service Skype to introduce the 3 Skypephone. The Skypephone allows users to make free cell phone calls to other Skype users. The phone can also make regular cell-phone calls to non-Skype users for the normal fees. Here's how it works:To make a Skype call using the 3 Skypephone, you have to be on 3's cellular network.To initiate a Skype call, find a Skype user in your phone's address book and press the big "Skype" button.The call first goes over 3's cellular GSM network to a fixed Internet line, which then connects the call to Skype [source: mobileSift].From your 3 Skypephone, you can make free VoIP calls to other Skype users whether they have a Skypephone or not. You can talk to Skype users on their PCs or using other Skype VoIP products.The 3 Skypephone isn't currently available in the United States.AdvertisementUse of VoIP in Amateur Radio. "" Amateur or ham radio operators can use VoIP technology to set up temporary stations such as this one used by the Red Cross following Sept. 11. Tim Sloan/AFP/Getty ImagesThink of amateur radio, or ham radio, as an early version of the Internet. Using a worldwide network of radio towers, antennas and transceivers, amateur radio enthusiasts are able to communicate with fellow hobbyists around the globe, sometimes by voice and sometimes by Morse code.Amateur radio is limited by the distance that radio waves can travel. To send a signal to the other side of the world requires calculated timing and more than a little bit of luck. Every 11 years, for example, there's a peak in the number of sunspots produced by the sun, which increases the intensity of something called ionospheric propagation [source: International Solar Terrestrial Physics Program]. By bouncing radio signals high into the ionosphere, ham radio users can send long-distance messages. During off-peak years it's much more difficult.Now amateur radio fans are using VoIP technology to link users around the globe. Here's how it works. Ham radio has always relied on FM repeaters, large radio towers that act as base stations for accessing the radio network from home. By attaching an Internet-connected PC to these repeater stations, people can communicate with the repeater using VoIP.Several amateur radio fans have developed special software that helps connect home radio transceivers to the Internet. Users can connect their ham radio transceivers to their PC sound card and use the computer software to search for available repeater stations across the world [source: ARRL]. No longer are ham radio fans limited to the closest repeater station. If you live in Indiana, you can call into a repeater station in Mozambique and chat with local amateur radio aficionados instantly.There are also software programs that allow you to communicate with other amateur radio users directly from your PC, without having an actual ham radio [source: ARRL]. Some ham radio purists wouldn't call this amateur radio, while others hope that this new technology will draw more young people into the hobby.For more information about VoIP, amateur radio and related topics, check out the links that follow. Originally Published: May 9, 2001Voice Over IP FAQ. What is VoIP?VoIP or Voice Over Internet Protocol, also known as IP telephony, uses internet technology that supports voice calling. It also allows multimedia sessions over IP networks that make it easy to deliver voice communication without using analog line-connected telephones.How does voice over IP work?VoIP works by converting an incoming voice into compressed digital signals, which are then sent to the internet. These digital signals are then received at the receiver’s end where they are uncompressed and converted to sound so that the voice can be heard on the speakers.How much does VoIP cost?The cost of VoIP varies as the features are increased. A basic bundle can cost you around $60, whereas an advanced bundle can cost as much as $1,000. Some of the popular VoIP providers are Yealink, Polycom and Cisco.What are the benefits of using VoIP?VoIP service is used by businesses that have benefits like uninterrupted connectivity and advanced calling features like unlimited group calls. Besides, VoIP can be cheaper, more flexible and more robust than a standard landline phone. Another important benefit is that you can make wireless calls anytime, anyplace within an organization.What are the disadvantages of using VoIP?One of the main disadvantages of VoIP is that it depends on your internet connection to work. Thus, a reliable and strong connection is a must for VoIP to operate seamlessly. Another disadvantage is that it is prone to catching malware and viruses and may produce latency and jitter. Additionally, call and location tracking isn’t possible.Lots More Information. Related Articles. How Telephones WorkHow Cell Phones WorkHow Wi-Fi Phones WorkHow WiFi WorksHow Municipal WiFi WorksSkype vs. VonageHow WAP WorksHow Web Servers WorkHow Home Networking WorksHow Internet Infrastructure WorksHow Routers WorkHow Speakers WorkHow Sound Cards WorkHow Modems WorkHow Cable Modems WorkHow DSL WorksMore Great Links. VoIP CalculatorColumbia.edu: Session Initiation Protocol (SIP)Sources. An Interview with Andy Melton of NOS CommunicationsPC World: Avoid VoIP Gotchas by James A. Martin - June 2004PC World: Net phones evolve - Sept. 2004VoIP watch by Andy AbramsonPC Magazine Cite This! . Please copy/paste the following text to properly cite this HowStuffWorks.com article: Close CitationGames. Try Our Crossword Puzzles!Can You Guess the Answer?Try Our Sudoku Puzzles!More Awesome Stuff. "" Up NextSkype vs. VonageExplore More "" You May LikeHow do Voice over IP audio conferences work?Explore More "" Keep ReadingWhat Is an IP Address?Explore MoreAdvertisementAdvertisementLoading...AdvertisementAdvertisementAdvertisement
Topics
  • Topic
  • Tf
  • Position
  • voip
  • 119
  • 5
  • call
  • 115
  • 5
  • phone
  • 99
  • 5
  • network
  • 48
  • 5
  • packet
  • 37
  • 5
  • internet
  • 30
  • 5
  • radio
  • 29
  • 5
  • computer
  • 25
  • 5
  • ip
  • 25
  • 5
  • data
  • 24
  • 5
  • system
  • 24
  • 5
  • time
  • 24
  • 5
  • protocol
  • 23
  • 5
  • switch
  • 23
  • 5
  • connection
  • 20
  • 5
  • service
  • 19
  • 5
  • circuit
  • 19
  • 5
  • user
  • 19
  • 5
  • voip call
  • 17
  • 5
  • signal
  • 17
  • 5
  • software
  • 17
  • 5
  • ata
  • 17
  • 5
  • switching
  • 17
  • 5
  • number
  • 17
  • 5
  • technology
  • 16
  • 5
  • send
  • 16
  • 5
  • source
  • 16
  • 5
  • audio
  • 14
  • 5
  • fi
  • 14
  • 5
  • soft
  • 14
  • 5
  • cell
  • 14
  • 5
  • phone call
  • 13
  • 5
  • wi fi
  • 13
  • 5
  • cell phone
  • 12
  • 5
  • soft switch
  • 11
  • 5
  • phone number
  • 11
  • 5
  • call monitoring
  • 9
  • 5
  • amateur radio
  • 9
  • 5
  • phone system
  • 8
  • 5
  • packet switching
  • 8
  • 5
  • ham radio
  • 8
  • 5
  • audio signal
  • 7
  • 5
  • fi phone
  • 7
  • 5
  • voip phone
  • 7
  • 5
  • circuit switching
  • 7
  • 5
  • ip address
  • 7
  • 5
  • wi fi phone
  • 6
  • 5
  • c acelp
  • 6
  • 5
  • skype user
  • 6
  • 5
  • internet connection
  • 6
  • 5
  • call processor
  • 6
  • 5
  • wireless internet
  • 6
  • 5
  • traditional phone
  • 5
  • 5
  • voip service
  • 5
  • 5
  • ip phone
  • 5
  • 5
  • hardware software
  • 5
  • 5
  • mail
  • 5
  • 5
  • phone network
  • 5
  • 5
  • voip technology
  • 5
  • 5
  • call quality
  • 5
  • 5
  • voip network
  • 5
  • 5
  • 128 kbp
  • 4
  • 5
  • round trip
  • 4
  • 5
  • call skype
  • 4
  • 5
  • long distance
  • 4
  • 5
  • call voip
  • 4
  • 5
  • analog audio
  • 4
  • 5
  • free voip
  • 4
  • 5
  • voip software
  • 4
  • 5
  • telephone network
  • 4
  • 5
  • 10 minute
  • 4
  • 5
  • user phone
  • 4
  • 5
  • skypephone
  • 4
  • 5
  • repeater station
  • 4
  • 5
  • analog audio signal
  • 3
  • 5
  • traditional phone system
  • 3
  • 5
  • central call processor
  • 3
  • 5
  • radio wi fi
  • 3
  • 5
  • wireless internet network
  • 3
  • 5
  • phone wi fi
  • 3
  • 5
  • digital data
  • 3
  • 5
  • phone company
  • 3
  • 5
  • voip provider
  • 3
  • 5
  • emerging technology
  • 3
  • 5
  • connection voip
  • 3
  • 5
  • sound card
  • 3
  • 5
  • voip amateur
  • 3
  • 5
  • voip company
  • 3
  • 5
  • telephone call
  • 3
  • 5
  • dial tone
  • 3
  • 5
  • copper wire
  • 3
  • 5
  • phone conversation
  • 3
  • 5
  • send packet
  • 3
  • 5
  • network route
  • 3
  • 5
  • send signal
  • 3
  • 5
  • current phone
  • 3
  • 5
  • central office
  • 3
  • 5
  • call center
  • 3
  • 5
  • route call
  • 3
  • 5
  • current ip
  • 3
  • 5
  • central call
  • 3
  • 5
  • voip protocol
  • 3
  • 5
  • source testyourvoipcom
  • 3
  • 5
  • radio wi
  • 3
  • 5
  • internet network
  • 3
  • 5
  • wireless network
  • 3
  • 5
  • phone wi
  • 3
  • 5
  • radio fan
  • 3
  • 5
Result 6
Title
Url
Description
Date
Organic Position5
H1
H2
H3
H2WithAnchors
Body
Topics
  • Topic
  • Tf
  • Position
Result 7
TitleVoIP: The complete beginner’s guide
Urlhttps://www.broadbandchoices.co.uk/guides/internet/internet-phone-voip-offers
DescriptionEverything you need to know about VoIP - voice over internet protocol. Find out what it is, how to set it up, how much it costs, and the pros and cons
Date
Organic Position6
H1VoIP: The complete beginner’s guide
H2What is VoIP and how does it work?
What equipment do I need?
VoIP on smartphones
Pros and cons of VoIP
Can I keep my old phone number?
How much does it cost?
Should I get rid of my landline?
More like this
Compare broadband deals in your area
H3Popular broadband packages
H2WithAnchorsWhat is VoIP and how does it work?
What equipment do I need?
VoIP on smartphones
Pros and cons of VoIP
Can I keep my old phone number?
How much does it cost?
Should I get rid of my landline?
More like this
Compare broadband deals in your area
BodyVoIP: The complete beginner’s guide Wednesday, September 5 2018 Daniel Clifford VoIP - also known as internet telephony, IP telephony, or broadband phone - is a way of making phone calls that, believe it or not, doesn’t use a phone line. So how does it work? Read on and we’ll take you through the basics. What is VoIP and how does it work? VoIP stands for Voice over Internet Protocol. Put simply, it refers to making phone calls that are made through the internet, rather than through a regular landline or a mobile network. A VoIP system works by taking your analogue voice signals, converting them into digital signals, then sending them as data over your broadband line. It's a very useful way of making calls - for a start, once it's set up it's a lot cheaper than using normal phone lines. It means that, depending on your setup, you may not have to pay for your phone calls based on distance, which country you're calling, or how much time you spend chatting. Your VoIP system could be: With a phone and a VoIP adapter - Using a special adapter, you can make VoIP calls from a regular old landline phone. These adapters plug into either a phone socket in the wall or into your router. With a computer - There are dozens of programs that let you make voice calls to anyone who also has it installed, including Skype, Google Talk, and Apple FaceTime. Some, such as Skype, can be used to call regular landline or mobile numbers too. Calling someone else who has the app is free, but calling an actual phone number will usually cost a little. With a smartphone - You can use your smartphone to make voice calls using certain apps. See below for more on how this works. Some broadband and home phone providers offer VoIP as part of their services, so they may do things a little differently. It's the standard form of phone line from a number of FTTP (fibre-to-the-premises) providers, for example, and VoIP is available as part of almost any business broadband or phone package. Either way, your provider will give you all the info you need. What equipment do I need? The exact equipment you need depends on which method of VoIP you're using. The first thing you'll need is a broadband connection - a fibre optic one so it's more reliable, and an unlimited one means you can talk as much as you want to. You'll get the absolute best VoIP experience possible with a full FTTP or an ethernet connection, which are available with some business broadband providers. For VoIP with an adapter, you'll need… a VoIP adapter (of course), and a compatible phone. If it plugs into a router, you'll need a compatible router too. For VoIP with a computer, you'll need… a laptop or desktop computer with an internet connection, the right software, and either a headset or speakers and a microphone. Headsets are better for clarity and sound quality, but you can get by just fine without. For VoIP with a smartphone, you'll need… a smartphone, connected to Wi-Fi and with your chosen app installed. Some VoIP providers may do things differently, and might require specific equipment. Contact your provider for more info on this - and don't worry, they'll provide you with everything you need to get started, and guide you through the setup when you sign up. VoIP on smartphones. There are apps that you can use to call other people who have the same app. There's Skype, FaceTime, Viber, Line, WhatsApp, Facebook Messenger, and dozens more. Some, like Skype and Viber, will even let you call a regular landline or mobile number - though bear in mind this will usually cost money. Other features include being able to call someone on any device (smartphone, tablet, laptop, and so on), free video calling, and sometimes even group calling - because who wouldn't want a conference call with their Facebook friends? The other kind of VoIP apps are ones from landline providers. These are pretty clever, as they let you make calls that use the calling minutes included in your home phone plan. So if you have inclusive weekend calls, or super cheap international calling, you can reap those benefits from your smartphone too - even when you're not at home. Generally, you'll need to be connected to Wi-Fi for it to work. Phone calls over mobile broadband, also known as VoLTE, are a different beast entirely - and if you don't have unlimited data, they'll really eat into your allowance. Pros and cons of VoIP. Pros: The main advantage of using a VoIP service is that it can be a lot cheaper than regular landlines, especially for calling overseas. With certain setups, in fact - like using FaceTime - it's completely free. It can also give you much clearer sound, especially on a high-speed fibre optic line. And, if a bunch of people in your household or office need to make calls at the same time, it's a better option than splashing out on installing multiple phone lines. Cons: On the other hand, your call quality on VoIP will be affected by the state of your broadband line - slow internet can mean rubbish phone calls. That said, so long as you're using a fibre optic line, all should be okay. There are also quite a few things available with a landline phone that are missing from VoIP. A lot of landline providers offer calling features, for instance - like voicemail or call waiting. And some numbers can't always be called over VoIP, such as directory inquiries. Popular broadband packages. Cheap broadband deals No upfront cost broadband 12 month broadband Broadband for poor creditFrequently asked questions Can I keep my old phone number? It depends on your VoIP setup. Most specific VoIP providers let you port your old number over. Some, however, may require a new one. For most VoIP apps and software, you'll need to register and sign into your own account, so a phone number isn't always necessary. As long as you can sign in on the app, your contacts can call you. How much does it cost? Again, it depends on your setup. VoIP calling app-to-app is almost always free; calling a landline or mobile number may cost a little; and other VoIP services, including those from Hyperoptic or business providers, require a monthly fee. Should I get rid of my landline? For the majority of providers, you need line rental to receive broadband anyway, so you may have no choice but to keep it. If you rely on being able to make phone calls, ever have to call numbers not available through VoIP, or use features only available on landlines, it's worth keeping a landline around as back-up. If you only make calls very occasionally, however, you could get away with having none at all. Read our guide to landline-free broadband for more info. More like this. Satellite broadband: What's it all about? What’s happening to old red phone boxes? POV on Vodafone ‘abolishing’ line rental charges Compare broadband without a landline Is Vodafone really offering broadband without line rental? BT vs Virgin Media broadband: Which is best? How to watch TV online: a complete guide Compare broadband deals in your area. Compare broadband, TV & landline deals. Broadband Deals Cheap Broadband Deals Fibre Broadband Deals Broadband Only Deals Unlimited Deals Broadband & TV Deals
Topics
  • Topic
  • Tf
  • Position
  • voip
  • 31
  • 7
  • broadband
  • 26
  • 7
  • call
  • 24
  • 7
  • phone
  • 23
  • 7
  • landline
  • 15
  • 7
  • app
  • 12
  • 7
  • line
  • 12
  • 7
  • youll
  • 11
  • 7
  • calling
  • 11
  • 7
  • provider
  • 11
  • 7
  • number
  • 10
  • 7
  • deal
  • 9
  • 7
  • smartphone
  • 8
  • 7
  • fibre
  • 7
  • 7
  • phone call
  • 6
  • 7
  • broadband deal
  • 6
  • 7
  • regular landline
  • 5
  • 7
  • guide
  • 5
  • 7
  • internet
  • 5
  • 7
  • work
  • 5
  • 7
  • regular
  • 5
  • 7
  • mobile
  • 5
  • 7
  • setup
  • 5
  • 7
  • adapter
  • 5
  • 7
  • free
  • 5
  • 7
  • cost
  • 5
  • 7
  • voip adapter
  • 4
  • 7
  • phone line
  • 4
  • 7
  • landline mobile
  • 4
  • 7
  • voice
  • 4
  • 7
  • youre
  • 4
  • 7
  • skype
  • 4
  • 7
  • thing
  • 4
  • 7
  • regular landline mobile
  • 3
  • 7
  • call regular landline
  • 3
  • 7
  • landline mobile number
  • 3
  • 7
  • broadband line
  • 3
  • 7
  • call regular
  • 3
  • 7
  • mobile number
  • 3
  • 7
  • phone number
  • 3
  • 7
  • fibre optic
  • 3
  • 7
  • line rental
  • 3
  • 7
  • compare broadband
  • 3
  • 7
  • deal broadband
  • 3
  • 7
  • rental
  • 3
  • 7
  • compare
  • 3
  • 7
  • tv
  • 3
  • 7
Result 8
TitleWhat is VoIP and how does it work? | AT&T Business
Urlhttps://www.business.att.com/learn/tech-advice/what-is-voip-and-how-does-it-work-.html
DescriptionWhat is voice over IP (VoIP)? VoIP technology enables you to make phone calls using an Internet-connected computer by converting your voice into a digital signal
Date
Organic Position7
H1What is VoIP and how does it work?
H2VoIP technology enables traditional telephony services to operate over computer networks
Never miss an update from your network
MORE STORIES
H3Receive insights. Transform business
Share
Solutions for better business outcomes
Featured articles
Video Title
H2WithAnchorsVoIP technology enables traditional telephony services to operate over computer networks
Never miss an update from your network
MORE STORIES
BodyWhat is VoIP and how does it work? VoIP technology enables traditional telephony services to operate over computer networks. by The AT&T Business Editorial Team Forget copper wires and handsets. Today you can make phone calls anytime, anywhere using an Internet-connected computer, a headset, and voice over IP (VoIP). VoIP is the technology that converts your voice into a digital signal, allowing you to make a call directly from a computer, a VoIP phone, or other data-driven devices. Simply put, it’s phone service delivered over the internet. You may also hear it referred to as IP telephony, internet telephony, broadband telephony, or broadband phone service. Receive insights. Transform business. News and insights delivered right to your inbox. Sign up for the AT&T Business Newsletter. Subscribe Today The way it works. VoIP technology enables traditional telephony services to operate over computer networks using packet-switched protocols. Packet-switched VoIP puts voice signals into packets, similar to an electronic envelope. VoIP packets can be transmitted over any VoIP-compatible network, such as a local area network (LAN). Not your ordinary telephone service. Because VoIP uses packets, much more information can be carried over the network to support and enhance your communication needs. In addition to traditional voice services, VoIP gives you access to advanced applications that can potentially help your staff be more agile and productive. VoIP solutions aimed at businesses have evolved into unified communications services that treat all communications—phone calls, faxes, voice mail, email, web conferences, and more—as discrete units that can all be delivered via any means and to any handset, including cell phones. The bottom line. Switching to VoIP might also help you save money on communications services. Long-distance and international calls are generally free with VoIP service. The only charge is for your internet access. Implementing VoIP doesn’t mean that all your employees have to use IP-enabled phones. The best VoIP providers implement IP telephony in a manner that protects your investment in existing telephone equipment, even if you have analog telephone stations. Learn more about the communications possibilities that VoIP can open up for your business with AT&T Business VoIP solutions. Share. ✖ Share this with others Twitter Linkedin Facebook Email READ MORE ARTICLES ON: Collaboration & Communication Network & Connectivity Continue reading Never miss an update from your network . Subscribe today! By submitting your email address, you agree to receive future emails from AT&T and its family of companies. We’ll email you offers and promotions about AT&T products and services. By submitting your email address, you agree to receive future emails from AT&T and its family of companies. We’ll email you offers and promotions about AT&T products and services. Solutions for better business outcomes. Business VoIP Services Featured articles. 1 Cloud 5G is the ‘latency tipping point’ Read more 2 Network & Connectivity What 5G means for business Watch now MORE STORIES. Background image 1 Collaboration & Communication What’s your collaboration style? Read more Background image 2 Collaboration & Communication Developing a unified communications strategic plan and transformation roadmap Read more Background image 3 Collaboration & Communication The rise of multichannel contact centers: what's driving adoption? Read more Video Title. We use cookies. This site uses cookies and other tracking technologies. These help the site function better. They also help us improve it. This data gives us feedback on how you use our products and services, helps us develop promotional and marketing material more relevant to you, and allows us to connect you with apt content from third parties. Read more about cookies and how to manage your settings here. For information specifically applicable to users in the European Economic Area, please click here. I Accept
Topics
  • Topic
  • Tf
  • Position
  • voip
  • 19
  • 8
  • service
  • 13
  • 8
  • communication
  • 10
  • 8
  • network
  • 9
  • 8
  • business
  • 9
  • 8
  • collaboration
  • 8
  • 8
  • email
  • 8
  • 8
  • collaboration communication
  • 7
  • 8
  • read
  • 7
  • 8
  • att
  • 7
  • 8
  • phone
  • 7
  • 8
  • background image
  • 6
  • 8
  • image
  • 6
  • 8
  • telephony
  • 6
  • 8
  • voice
  • 5
  • 8
  • packet
  • 5
  • 8
  • technology
  • 4
  • 8
  • computer
  • 4
  • 8
  • call
  • 4
  • 8
  • internet
  • 4
  • 8
  • ip
  • 4
  • 8
  • image collaboration
  • 3
  • 8
  • voip technology
  • 3
  • 8
  • att business
  • 3
  • 8
  • product service
  • 3
  • 8
  • traditional
  • 3
  • 8
  • today
  • 3
  • 8
  • delivered
  • 3
  • 8
  • receive
  • 3
  • 8
  • telephone
  • 3
  • 8
  • solution
  • 3
  • 8
  • product
  • 3
  • 8
  • background
  • 3
  • 8
  • cooky
  • 3
  • 8
Result 9
TitleWhat Is VoIP, And How Does It Work?
Urlhttps://ok.com.au/what-is-voip-and-how-does-it-work/
DescriptionBy now, you've heard about VoIP, which is short for Voice over Internet Protocol. Originally launched on the Internet in 1995, it's an understatement to say that VoIP has changed the way we communicate
Date
Organic Position8
H1What is VoIP, and how does it work?
H2What is VoIP, and how does it work?
The way it works
Not your ordinary telephone service
Registration Rewired: VoIP Phone Systems Don't Need Expensive Copper Wire
VoIP Phones Look Just Like Regular Phones
VoIP phone keypad
VoIP phone toggle buttons
Using VoIP
What are the benefits of Voice over IP?
Disadvantages of VoIP
FAQ
H3Your VoIP system could be:
Can I keep my old phone number?
How much does it cost?
Should I get rid of my landline?
Not sure how to get started? Speak with a specialist now to get business tech help now
H2WithAnchorsWhat is VoIP, and how does it work?
The way it works
Not your ordinary telephone service
Registration Rewired: VoIP Phone Systems Don't Need Expensive Copper Wire
VoIP Phones Look Just Like Regular Phones
VoIP phone keypad
VoIP phone toggle buttons
Using VoIP
What are the benefits of Voice over IP?
Disadvantages of VoIP
FAQ
BodyWhat is VoIP, and how does it work? Table of Contents Add a header to begin generating the table of contents Business VoIP Phones, How do they work? By now, you've heard about VoIP, which is short for Voice over Internet Protocol. Originally launched on the Internet in 1995, it's an understatement to say that VoIP has changed the way we communicate. In this guide, we'll explain how VoIP phone systems work, including all the ins and outs about making phone calls over the Internet. Even if you consider yourself a beginner or a seasoned business leader, you'll learn everything you need to know about internet phone service. The average VoIP phone isn't that much different from the analog phone you currently have at your desk. VoIP phones look the same, and often have the same features, as the landline desk phones you're probably familiar with. There are, however, some key differences that distinguish VoIP phones from other desk phones. This blog will give you a quick overview of how a VoIP phone works and how to use one.   What is VoIP, and how does it work? VoIP stands for Voice over Internet Protocol. It refers to making phone calls that are made through the Internet, rather than through a regular landline or a mobile network. A VoIP system works by taking your analogue voice signals, converting them into digital signals, then sending them as data over your broadband line. It's a very useful way of making calls - for a start, once it's set up it's a lot cheaper than using normal phone lines. It means that, depending on your setup, you may not have to pay for your phone calls based on distance, which country you're calling, or how much time you spend chatting.   Your VoIP system could be:.   With a phone and a VoIP adapter - Using a special adapter, you can make VoIP calls from a regular old landline phone. These adapters plug into either a phone socket in the wall or into your router.   With a computer - There are dozens of programs that let you make voice calls to anyone who also has it installed, including Skype, Google Talk, and Apple FaceTime. Some, such as Skype, can be used to call a regular landline or mobile numbers too. Calling someone else who has the app is free, but calling an actual phone number will usually cost a little.   With a smartphone - You can use your smartphone to make voice calls using certain apps. See below for more on how this works.   Some broadband and home phone providers offer VoIP as part of their services so that they may do things a little differently. It's the standard form of the phone line from a number of FTTP (fibre-to-the-premises) providers, for example, and VoIP is available as part of almost any business broadband or phone package. Either way, your provider will give you all the info you need. Voice over IP, or VoIP, is short for Voice over Internet Protocol and refers to the transmission of voice traffic over an internet connection. Traditional telephony, known as the Public Switched Telephone Network or PSTN for short, works through physical phone lines, cable systems and networks and allows users to make landline and cellular telephone calls. IP telephony, however, is much more versatile and enables voice, data, and video to be transmitted to a variety of devices including smartphones, laptops, tablets and IP phones at a much lower cost. There are a variety of applications and software communications systems that utilize Voice over IP to offer full-featured business communications solutions as well as internet telephony for personal use. Examples of such products include 3CX, which offers a company communications system integrating voice, video, chat and more. Most modern device manufacturers, like Apple, have integrated native IP apps into there smartphones, such as Apple FaceTime which provides call and video functionality.   The way it works. VoIP technology enables traditional telephony services to operate over computer networks using packet-switched protocols. Packet-switched VoIP puts voice signals into packets, similar to an electronic envelope. VoIP packets can be transmitted over any VoIP-compatible network, such as a local area network (LAN). Not your ordinary telephone service. Because VoIP uses packets, much more information can be carried over the network to support and enhance your communication needs. In addition to traditional voice services, VoIP gives you access to advanced applications that can potentially help your staff be more agile and productive. VoIP solutions aimed at businesses have evolved into unified communications services that treat all communications-phone calls, faxes, voice mail, email, web conferences, and more-as discrete units that can all be delivered via any means and to any handset, including cell phones. Registration Rewired: VoIP Phone Systems Don't Need Expensive Copper Wire. VoIP phones make and receive calls via the Internet. This means that they can use your office's Internet connection to connect to the telephone network. In other words, if your office is already wired for Ethernet, you do not need to invest in additional copper wiring to use your business phones. In order to make phone calls, you will first have to register your VoIP phone to your account. This is the process of connecting your phone to your service provider so that they can communicate with each other. Some VoIP providers support IP phone booting for certain VoIP phones, which speeds up the phone registration process using a boot server. The whole process of registering a phone will take you, or your IT staff, less than 30 minutes. Plus, there's no need to call the local phone company. Phones are active as soon as they're registered-no red tape. VoIP Phones Look Just Like Regular Phones. Outwardly, you might not even tell the difference between a VoIP phone and another business desk phone. VoIP phones tend to have handsets, receivers, speaker locations, and button placements that make them physically indistinguishable from the business phones you currently employ. VoIP phones use the same keypad as landline phones. The keypad comes with nine numbers, zero, and corresponding letters that enable alphanumeric input. If you've ever used a phone before, you've seen this keypad. VoIP phone keypad. VoIP phones generally have dedicated buttons for redial, transfer, conference, hold, mute, voicemail, and speakerphone. These buttons are set along the side of the number pad. VoIP phones and other business phones use these features almost universally. That said, VoIP phones are capable of HD voice, while other business phones are not. HD Voice offers at least twice the audio range of landline phone service. The spread for landline voice quality is 3.4 kHz (3400 Hz), but the spread for HD voice is 7 kHz (7000 Hz). In other words, the quality of your calls will be much higher using two VoIP phones than two traditional phones. Many VoIP phones also support Power over Ethernet (PoE), which allows you to power the phone through a PoE switch instead of a power adapter. This reduces clutter on your desk and simplifies inventory management. It can also save you money, as power adapters are often sold separately from the phones. VoIP phone toggle buttons. VoIP phones handle calls differently than other business phones. Above, the buttons in the yellow rectangle are the toggle buttons. VoIP phones allow you to pick between current, incoming and held calls using the toggle buttons. These buttons rarely appear on landline phones. On landline phones, each "line" corresponds to a phone number. Landline phones can juggle multiple calls among corresponding copper lines, and you switch between these calls with the line buttons (in the green rectangle above) on the phone. If you have five lines for your business, that means your phone can take calls from five different phone numbers. VoIP phones, on the other hand, do not have "lines" in the traditional sense. Instead of being tied to a phone number, each 'line' on a VoIP phone is tied to a SIP address or user account. Depending on your phone model, your phone may be able to handle multiple user accounts simultaneously. This means you can take calls from multiple accounts and different phone numbers on your VoIP phone. Using VoIP. Chances are good you're already making VoIP calls any time you place a long-distance call. Phone companies use VoIP to streamline their networks. By routing thousands of phone calls through a circuit switch and into an IP gateway, they can seriously reduce the bandwidth they're using for the long haul. Once a gateway receives the call on the other side of the call, it's decompressed, reassembled and routed to a local circuit switch. Although it will take some time, you can be sure that eventually all of the current circuit-switched networks will be replaced with packet-switching technology (more on packet switching and circuit switching later). IP telephony makes sense, in terms of both economics and infrastructure requirements. More and more businesses are installing VoIP systems, and the technology will continue to grow in popularity as it makes its way into our homes. Perhaps the biggest draw to VoIP for the home users that are making the switch are price and flexibility. With VoIP, you can make a call from anywhere you have broadband connectivity. Since the IP phones or ATAs broadcast their info over the Internet, they can be administered by the provider anywhere there's a connection. So business travellers can take their phones or ATAs with them on trips and always have access to their home phone. Another alternative is the softphone. A softphone is client software that loads the VoIP service onto your desktop or laptop. The Vonage softphone has an interface on your screen that looks like a traditional telephone. As long as you have a headset/microphone, you can place calls from your laptop anywhere in the broadband-connected world. Most VoIP companies are offering minute-rate plans structured like cell phone bills for as little as $30 per month. On the higher end, some offer unlimited plans for $79. With the elimination of unregulated charges and the suite of free features that are included with these plans, it can be quite a savings. Most VoIP companies provide the features that normal phone companies charge extra for when they are added to your service plan. VoIP includes: Caller ID   Call waiting   Call transfer   Repeat dial   Return call   Three-way calling   There are also advanced call-filtering options available from some carriers. These features use caller ID information to allow you to make a choice about how calls from a particular number are handled. You can: Forward the call to a particular number   Send the call directly to voice mail.   Give the caller a busy signal.   Play a "not-in-service" message   Send the caller to a funny rejection hotline.   With many VoIP services, you can also check voice mail via the Web or attach messages to an email that is sent to your computer or handheld. Not all VoIP services offer all of the features above. Prices and services vary, so if you're interested, it's best to do a little shopping.   Now that we've looked at VoIP in a general sense let's look more closely at the components that make the system work. To understand how VoIP works and why it's an improvement over the traditional phone system, it helps first to understand how a traditional phone system works. What are the benefits of Voice over IP? VoIP can facilitate tasks and deliver features and functionality that might be cumbersome or costly to implement when using traditional PSTN. More than one phone call can be transmitted on the same broadband phone line. This way, voice over IP can facilitate the addition of telephone lines to businesses without the need for additional physical lines. This makes VoIP systems much more scalable.   Features that are usually charged extra by telecommunication companies, such as call forwarding, caller ID or automatic redialing, are often included as standard with voice over IP technology. What's more, they are much easier to configure and manage.   Unified Communications are secured with voice over IP technology, as it allows for the use of software and applications, like 3CX. Such solutions offer a whole range of communications features such as voice calls, video, instant messaging, conferencing and even live website communications.   Used with a modern communications solution, users can take their office phone number with them wherever they go, all they need is internet access. They'll be able to access and make use of the company phone system from their mobile device, laptop or tablet.   A voice over IP solution provides significant cost savings over a traditional phone system. Users can take advantage of free calls and low rates for international calls and long-distance.   Organizations can boost customer service with applications which offer features to boost agent productivity and efficiency. What's more, customers can connect with the business through a variety of channels, as well as make use of free calls to contact centres.   It's much easier to work with remote workers when your business has a VoIP software communications solution in place. Extensions can be added easily without any fuss, and employees can be added to the company phone system no matter where they are located.   Fax machines are an outdated device that most businesses are getting rid of. But for those who are fonder of simpler times, many modern communications solutions offer fax to email, which is facilitated by VoIP.   Whole systems are easy and cheap to implement. Without the need for extensive amounts of infrastructure, VoIP communications systems can be deployed quickly and without much cost. What's more, with mobile apps and web clients, there's no need for desk phones or expensive devices, making it ideal for small businesses as well as larger enterprises.   With a broadband internet connection, a good VoIP service can provide excellent call quality with very little downtime.     Disadvantages of VoIP.   If you experience internet problems or power outages, this can result in your VoIP phone system failing to work. Additionally, poor internet connection can affect the quality of calls. For this reason, many businesses choose to opt for a dedicated internet connection for their VoIP communications.   As an internet service, it's vulnerable to cyber attacks. There are a number of security risks, including DOS attacks and eavesdropping. However, most reliable service providers and software systems implement tools and measures to protect against such vulnerabilities.     FAQ.   Can I keep my old phone number? It depends on your VoIP setup. Most specific VoIP providers let you port your old number over. Some, however, may require a new one. For most VoIP apps and software, you'll need to register and sign in to your account, so a phone number isn't always necessary. As long as you can sign in on the app, your contacts can call you. How much does it cost? Again, it depends on your setup. VoIP calling app-to-app is almost always free; calling a landline or mobile number may cost a little; and other VoIP services, including those from Hyperoptic or business providers, require a monthly fee. Should I get rid of my landline? For the majority of providers, you need line rental to receive broadband anyway, so you may have no choice but to keep it. If you rely on being able to make phone calls, ever have to call numbers not available through VoIP, or use features only available on landlines, it's worth keeping a landline around as a back-up. If you only make calls very occasionally, however, you could get away with having none at all. Switching to VoIP might also help you save money on communications services. Long-distance and international calls are generally free with VoIP service. The only charge is for your internet access. Implementing VoIP doesn't mean that all your employees have to use IP-enabled phones. The best VoIP providers implement IP telephony in a manner that protects your investment in existing telephone equipment, even if you have analog telephone stations. Not sure how to get started? Speak with a specialist now to get business tech help now.    
Topics
  • Topic
  • Tf
  • Position
  • phone
  • 97
  • 9
  • voip
  • 79
  • 9
  • call
  • 49
  • 9
  • voip phone
  • 27
  • 9
  • voice
  • 27
  • 9
  • service
  • 23
  • 9
  • business
  • 22
  • 9
  • internet
  • 19
  • 9
  • system
  • 19
  • 9
  • number
  • 18
  • 9
  • ip
  • 16
  • 9
  • landline
  • 15
  • 9
  • communication
  • 15
  • 9
  • work
  • 14
  • 9
  • line
  • 14
  • 9
  • feature
  • 11
  • 9
  • provider
  • 11
  • 9
  • app
  • 10
  • 9
  • network
  • 10
  • 9
  • traditional
  • 10
  • 9
  • phone call
  • 9
  • 9
  • offer
  • 9
  • 9
  • company
  • 9
  • 9
  • button
  • 9
  • 9
  • phone system
  • 8
  • 9
  • phone number
  • 8
  • 9
  • broadband
  • 8
  • 9
  • telephone
  • 8
  • 9
  • voice ip
  • 7
  • 9
  • solution
  • 7
  • 9
  • packet
  • 7
  • 9
  • phone line
  • 6
  • 9
  • phone voip
  • 6
  • 9
  • landline phone
  • 6
  • 9
  • voip service
  • 6
  • 9
  • telephony
  • 6
  • 9
  • user
  • 6
  • 9
  • software
  • 6
  • 9
  • long
  • 6
  • 9
  • voip system
  • 5
  • 9
  • internet connection
  • 5
  • 9
  • business phone
  • 5
  • 9
  • hd voice
  • 4
  • 9
  • system work
  • 4
  • 9
  • desk phone
  • 4
  • 9
  • communication solution
  • 4
  • 9
  • traditional phone
  • 4
  • 9
  • voice internet protocol
  • 3
  • 9
  • voip phone system
  • 3
  • 9
  • phone voip phone
  • 3
  • 9
  • traditional phone system
  • 3
  • 9
  • voip work
  • 3
  • 9
  • voice internet
  • 3
  • 9
  • internet protocol
  • 3
  • 9
  • phone service
  • 3
  • 9
  • work voip
  • 3
  • 9
  • regular landline
  • 3
  • 9
  • landline mobile
  • 3
  • 9
  • voip call
  • 3
  • 9
  • voice call
  • 3
  • 9
  • ip telephony
  • 3
  • 9
  • ip phone
  • 3
  • 9
  • communication system
  • 3
  • 9
  • voice mail
  • 3
  • 9
  • voip provider
  • 3
  • 9
  • phone company
  • 3
  • 9
  • company phone
  • 3
  • 9
  • phone keypad
  • 3
  • 9
  • toggle button
  • 3
  • 9
  • number voip
  • 3
  • 9
  • long distance
  • 3
  • 9
  • caller id
  • 3
  • 9
  • call number
  • 3
  • 9
Result 10
TitleHow Does VoIP Work? - The Ultimate Guide To VoIP & More - Infiniti Telecommunications
Urlhttps://infinititelecommunications.com.au/how-does-voip-work/
Description
Date
Organic Position9
H1How Does VoIP Work? – The Ultimate Guide To VoIP & More
H2What is VoIP?
How does VoIP Work?
How are VoIP calls are made?
How VoIP Works for Your Business
VoIP, the NBN, and your Phone System
Conclusion
H3VoIP Definition
VoIP: Codecs
VoIP Algorithms
Advantages of VoIP
Disadvantages of VoIP
Request A Consultation
Book a Phone Call
Request a Meeting
Request A Consultation
Request A Consultation
Request A Consultation
Request A Consultation
Request A Consultation
Request A Consultation
Request A Consultation
Request A Consultation
H2WithAnchorsWhat is VoIP?
How does VoIP Work?
How are VoIP calls are made?
How VoIP Works for Your Business
VoIP, the NBN, and your Phone System
Conclusion
BodyHow Does VoIP Work? – The Ultimate Guide To VoIP & More As a telecoms company, we get asked “how does VoIP work?” a lot. VoIP is fast becoming the most popular form of telecommunication on the planet, and while you may know a little about it – or even none at all – understanding how VoIP works and what it means for your business is something you can no longer avoid. VoIP, or Voice over Internet Protocol, is a method used to turn our analogue voice signals into digital data, so we can make phone and video calls, among other things, using our internet connections. In doing this, we’re able to take advantage of much lower priced (and sometimes free) phone rates and line rental. The most important reason to get your head around VoIP, though is the fact that the NBN rollout is going to mean your business will be looking for a new way to run and manage your phone system. What is VoIP? VoIP Definition. ‘Voice over Internet Protocol’ is also known as Voice over IP, VoIP and IP telephony. It is a methodology that includes a group of similar technologies – all used to deliver voice and media – such as fax, SMS, and voice and video calls, over Internet Protocol (IP) networks. Where these communications have traditionally taken place using the public switched telephone network (PSTN), VoIP specifically refers to communications services that take place over the public Internet. How does VoIP Work? VoIP: Codecs. When you use VoIP to make phone calls over the internet, your voice has to be encoded into digital data, and that digital data has to be re-coded into voice signals at the other end of the call. This process of encoding-decoding is achieved by codecs, which is short for – you guessed it – encoder-decoder. Codecs ensure that the data is compressed, which means that it’s transmitted faster and, as a result,  the quality of the call is better. Codecs are required because, unlike traditional PSTN phone conversations that use analogue data, VoIP uses digital signals. Codecs are used to encode the analogue voice data into digital signals that can traverse the internet. When the digital signal reaches the destination, it will be decoded back to its analogue form, so the person on the line can hear and understand it. While the idea of digital voice data and codecs may seem complicated, just think of the process as you would an email. Like an email, the data (your voice) has a destination (the number you dial). Your voice is turned into a code (encoded)so that it can move through the internet. At the other end, the code is converted back into the sound of your voice (decoded), so the person you are calling can understand what you said. If both you and the person you called are using VoIP, then the entire journey of your phone call will take place over the internet. If they’re using the traditional network, the call travels as far as it can using VoIP, and then switches to the public phone network to get to its destination. The same happens if you have a traditional phone, and someone using a VoIP service calls you, only the journey is reversed. VoIP Algorithms. How are VoIP calls are made? Unlike traditional phone services, there is not only one way to make a phone call using VoIP. Where you used to connect your phone to a wall outlet, the three most common ways to connect using a VoIP service are: An Analogue Telephone Device (ATA). An ATA is an adapter that allows you to use your analogue telephone with a VoIP service. It connects between your phone and your internet service, and will encode the outgoing analogue data from your phone into digital data that can journey across the internet. Likewise, it will take incoming digital data and decode it into an analogue sound that you can hear and understand. When it comes to switching from traditional services to VoIP, the ATA is a little lifesaver, and can potentially save your business thousands of dollars in new hardware. You can learn more about ATA’s in our Small Business Guide To The NBN. IP Phones. IP (Internet Protocol) phones look just like a normal phone, however, they are built especially for VoIP. Instead of connecting to your wall socket using an RJ-11 phone cable, IP Phones will connect to your router using an RJ-45 ethernet connector. You don’t need an ATA is you have IP handsets, because digital is their native language. A great entry level IP-enabled handset is the Avaya 1408 Phone Handset, in fact, “For 90% of customers they would be hard pressed to require anything more.” Avaya 1408 Phone Handset And for business looking for a more advanced IP Phone setup the Avaya 9670G Phone Handset is part of Avaya’s flagship range. Softphones. A softphone is software that loads a VoIP service onto your computer, often with an interface that looks just like a traditional phone. An example of a consumer softphone is Skype, While business grade softphone services are not always free, the software is often very low cost, and you do make a lot of savings on your calls. You’ll need the VoIP software, a microphone and speakers (or a UC headset), a sound card, and a good internet connection (like any form of VoIP). How VoIP Works for Your Business. In Australia, the public switch telephone network (old copper wiring)  is being phased out and replaced by the NBN – which means VoIP is soon going to be the main telecommunications protocol nation-wide. While it is an excellent reason to switch your services to VoIP, more and more Australian businesses are doing so because of the low price and greater flexibility it offers. Advantages of VoIP. Now that you’ve got an understanding of what VoIP is, let’s take a look at the five biggest reasons Australian businesses are turning to VoIP services to replace their old services: 1. It’s loaded with features. Most VoIP providers include features with their VoIP service for which traditional ISP’s would usually charge an additional fee. So, where you might have been paying your old provider monthly for Caller ID, Call Forward, Call Waiting, and Call Transfer, these features will usually be included in your VoIP service at no extra cost. The range of features are quite extensive, and it pays to shop around with different providers. Some charge more than other for extra features, while some have a whole host of them for free. 2. VoIP will be best friends with your phone system. VoIP is ideal for business phone systems for a number of reasons, and it will work with a traditional, hybrid, IP or Hosted system. In some cases, new licenses and ATA’s will be required, so look around for an honest provider that will help you switch your phone system to VoIP with the minimum expense. 3. VoIP will save you a lot of money. Because VoIP uses the internet as a pathway for your communication, rather than the cables previously used on the PSTN network, line rental is the first place you are going to see savings. Some providers offer VoIP lines for as little as $5. The same goes for your phone calls. Even international phone calls are up o a third less expensive than with PSTN lines and, with some providers, local and national calls will be free. Mobile rates are lower, and we’ve personally seen some of our client’s make a 70% saving in their monthly phone bill after switching to VoIP. 4. VoIP is a lot more flexible. One of the drawbacks of traditional PSTN communication was that, if you wanted to add another user in your office, you’d have to pay for another line, and have someone come to your office to install an outlet. VoIP is a lot easier to scale up or down, and most of the changes you’d be likely to make can be made remotely by your provider. The same goes for managing your features and, in a lot of cases, you can actually make the changes you want yourself using a web interface (if you’re using a softphone). 5. VoIP is the best NBN friendly option you have. Pretty soon, all PSTN lines will be either removed or made redundant, so whether you like it or not, VoIP will be the only answer. Plus there are also many more reason for small & medium size businesses to switch to using VoIP that you can learn more about here. Disadvantages of VoIP. While VoIP has a lot of benefits it does, like everything, have a few drawbacks, and they all relate to it being reliable under certain circumstances. 1. VoIP is dependent on a quality internet connection. As a result, QoS issues can affect the quality of your VoIP phone calls. It’s also important to make sure your bandwidth is capable of carrying your VoIP service, in addition to your general office internet use, otherwise a heavy download could cause a dropout in your phone calls. This is why our carrier partner SpringCom recommends having a dedicated internet connection just for your voice data. 2. VoIP runs the risk of viruses and hackers. It’s rare, but VoIP hacking is definitely a thing. Good news is that there are some easy steps your business can take to protect yourself. 3. VoIP will make emergency calls a bit of a challenge. Because VoIP uses an IP address as a phone number, and a geographic location can’t be drawn from an IP address. With PSTN lines, if you couldn’t tell the emergency operator your address, they could still trace your location. With VoIP, there’s no way to find the precise location of the caller if they can’t tell the operator their address. View the information about VoIP and emergency calling from ACMA. VoIP, the NBN, and your Phone System. The NBN means that every home and business will have to find a new way to make phone calls – and that means VoIP. Residential customers, for the most part, will be able to simply connect their existing phone into an NBN outlet and start making VoIP calls. There are a lot of VoIP myths out there but this option is not viable for businesses, because it is limited to two phones. The solution for you will be to start using VoIP – and it’s not as scary as it sounds… Instead of plugging your phone into an outlet in your wall, you will now plug them into your modem to connect them to the NBN. As we mentioned earlier, an ATA may be required for older phones and phone systems and, in some cases, you’ll be required to buy a license. The ATA will simply connect between your phone and your modem. It’s also likely that your business will benefit from SIP (Session Initiation Protocol), which is business grade, superior VoIP. Find out more about How SIP Works with a Phone System. The key to being ready for VoIP – and the NBN in general – is to look for a provider who you can trust. Many businesses are getting sketchy information about VoIP, SIP, and Phone Systems, and end up spending a fortune on new phone systems, handsets, and hardware that they don’t actually need. Conclusion. This article has addressed the question, ‘How does VoIP work’, and looked at how it will work for your business, including some of its advantages and disadvantages. As mentioned, switching your business service to VoIP won’t be a choice once the NBN has been rolled out in your area. The good news is that – if you prepare properly and get the right advice before you make the switch – your new VoIP service will improve the way your business communicates. Unfortunately, if you don’t prepare, things can get tricky. Assuming that the switch is as simple as NBN. Co. advertises it will be (“As easy as 1…2…3…”) can be a big mistake. There are a lot of factors to take into consideration, including your phone system, internet, EFTPOS terminals, and security systems. If you forget to plan ahead for these and many businesses have done – you could be stuck without them for days, weeks, and even months. The advice we give to our phone system clients, and anyone else who asks us about the NBN, is to get an NBN-ready audit for your business. Have an Infiniti technician visit your office and assess everything from your handsets to your phone and internet outlets. They’ll give you the advice you need to make the switch to the NBN efficiently, saving to time and money in the long run. Get in touch with our team today on 1300 889 792 to arrange an NBN audit for your business today. Are Hosted Systems Right For Your Business Try our phone system wizard NBN Guarantee We'll give you upfront and honest advice on how the NBN will affect your business, and then when the NBN is available in your area, we will help you upgrade your internet & phone system to the NBN. No penalties. No surprises. Learn More Enquire About A New Phone System Before 5pm, 31st of January & Receive A FREE Headset With Your New Phone System* * Terms and Conditions January Special Ends: 0 Days 0 Hours 0 Mins 0 Secs Request A Consultation Or Call 1300 889 792 Today × Request A Consultation. Looking for help to find your new phone system? Enter a few details below and one of our new phone system team will give you a call back to talk through your options. × Book a Phone Call. Enter a few details below and one of our team will give you a call back to talk through your options. × Request a Meeting. Enter a few details below and one of our team will give you a call back to arrange a discussion in person. × Request A Consultation. Looking for help to find your new phone system? Enter a few details below and one of our new phone system team will give you a call back to talk through your options. × Request A Consultation. Looking for help to find your new phone system? Enter a few details below and one of our new phone system team will give you a call back to talk through your options. × Request A Consultation. Looking for help to find your new phone system? Enter a few details below and one of our new phone system team will give you a call back to talk through your options. × Request A Consultation. Looking for help to find your new phone system? Enter a few details below and one of our new phone system team will give you a call back to talk through your options. × Request A Consultation. Looking for help to find your new phone system? Enter a few details below and one of our new phone system team will give you a call back to talk through your options. × Request A Consultation. Looking for help to find your new phone system? Enter a few details below and one of our new phone system team will give you a call back to talk through your options. × Request A Consultation. Looking for help to find your new phone system? Enter a few details below and one of our new phone system team will give you a call back to talk through your options. × Request A Consultation. Looking for help to find your new phone system? Enter a few details below and one of our new phone system team will give you a call back to talk through your options. ×
Topics
  • Topic
  • Tf
  • Position
  • voip
  • 80
  • 10
  • phone
  • 70
  • 10
  • call
  • 36
  • 10
  • system
  • 36
  • 10
  • phone system
  • 33
  • 10
  • business
  • 25
  • 10
  • internet
  • 20
  • 10
  • nbn
  • 19
  • 10
  • service
  • 18
  • 10
  • data
  • 14
  • 10
  • voice
  • 14
  • 10
  • give
  • 14
  • 10
  • back
  • 13
  • 10
  • ip
  • 12
  • 10
  • option
  • 12
  • 10
  • find
  • 12
  • 10
  • team
  • 12
  • 10
  • team give call
  • 11
  • 10
  • give call back
  • 11
  • 10
  • phone call
  • 11
  • 10
  • enter detail
  • 11
  • 10
  • team give
  • 11
  • 10
  • give call
  • 11
  • 10
  • call back
  • 11
  • 10
  • request
  • 11
  • 10
  • enter
  • 11
  • 10
  • detail
  • 11
  • 10
  • call back talk
  • 10
  • 10
  • back talk option
  • 10
  • 10
  • find phone
  • 10
  • 10
  • request consultation
  • 10
  • 10
  • back talk
  • 10
  • 10
  • talk option
  • 10
  • 10
  • ata
  • 10
  • 10
  • work
  • 10
  • 10
  • lot
  • 10
  • 10
  • digital
  • 10
  • 10
  • consultation
  • 10
  • 10
  • talk
  • 10
  • 10
  • request consultation find
  • 9
  • 10
  • consultation find phone
  • 9
  • 10
  • find phone system
  • 9
  • 10
  • phone system enter
  • 9
  • 10
  • system enter detail
  • 9
  • 10
  • enter detail phone
  • 9
  • 10
  • detail phone system
  • 9
  • 10
  • phone system team
  • 9
  • 10
  • system team give
  • 9
  • 10
  • voip service
  • 9
  • 10
  • consultation find
  • 9
  • 10
  • system enter
  • 9
  • 10
  • detail phone
  • 9
  • 10
  • system team
  • 9
  • 10
  • line
  • 9
  • 10
  • traditional
  • 9
  • 10
  • talk option request
  • 8
  • 10
  • voip work
  • 8
  • 10
  • option request
  • 8
  • 10
  • analogue
  • 8
  • 10
  • switch
  • 8
  • 10
  • provider
  • 8
  • 10
  • option request consultation
  • 7
  • 10
  • digital data
  • 6
  • 10
  • voip voip
  • 4
  • 10
  • voice data
  • 4
  • 10
  • voip lot
  • 4
  • 10
  • voip nbn
  • 4
  • 10
  • internet protocol
  • 4
  • 10
  • internet connection
  • 4
  • 10
  • phone system voip
  • 3
  • 10
  • system voip
  • 3
  • 10
  • digital signal
  • 3
  • 10
  • traditional phone
  • 3
  • 10
  • connect phone
  • 3
  • 10
  • service voip
  • 3
  • 10
  • ip phone
  • 3
  • 10
  • phone handset
  • 3
  • 10
  • pstn line
  • 3
  • 10
Result 11
TitleWhat is VoIP? A Full Guide for Understanding VoIP Phone Systems
Urlhttps://www.yeastar.com/blog/what-is-voip/
DescriptionVoIP is taking over business communications.This in-depth guide will walk you through basically everything about VoIP and help you make the most of it
Date
Organic Position10
H1What is VoIP? A Full Guide for Understanding VoIP Phone Systems
H2What is VoIP (Voice Over Internet Protocol)?
How Does VoIP Work?
What Are the Benefits of VoIP?
“Does My Business Need a VoIP Phone System?”
Things to Consider When Choosing a VoIP Service?
VoIP Phone System Buyer’s Guide
H3SIP Protocol and SIP Trunking
Equipment You May Need in order to use VoIP
1. Cost Savings
2. Easy to Install
3. Clear Voice Quality
5. Mobility & Geographical Flexibility
5. Scalability
6. Abundance of Features
1) Is your country experiencing the ISDN switch-off?
2) Do you have employees working from home?
3) Can your current analog system address your needs?
1) Do you want to keep existing equipment? Does it support your needs?
2) What kind of unified communications capabilities does it offer?
3) Is it possible to integrate into other platforms and tools?
H2WithAnchorsWhat is VoIP (Voice Over Internet Protocol)?
How Does VoIP Work?
What Are the Benefits of VoIP?
“Does My Business Need a VoIP Phone System?”
Things to Consider When Choosing a VoIP Service?
VoIP Phone System Buyer’s Guide
BodyWhat is VoIP? A Full Guide for Understanding VoIP Phone Systems December 18, 2020 12.0 min read Smooth internal and external communication is one of the cornerstones of daily business operations. Nowadays, Voice over Internet Protocol (VoIP) is increasingly becoming the golden rule of modern corporate communications. Simply put, it is a proven technology that allows people to make phone calls over the Internet connection. Developed in 1995, it has evolved to become more stable and reliable with the development of broadband and turned into the go-to solution for more and more businesses when upgrading their phone systems. This in-depth guide will walk you through basically everything about VoIP and help you make the most of it. Quick Links What is VoIP? How does VoIP work? What are the benefits of VoIP? “Does my business need a VoIP phone system?” Things to consider when choosing a VoIP system? VoIP Phone System Buyer’s Guide What is VoIP (Voice Over Internet Protocol)? Traditionally, legacy phone systems carry voice signals using analog phone lines so it requires the setup of circuit wiring to make and receive calls. Under this circumstance, a piece of specialized hardware equipment called Private Branch Exchange (PBX) is used to connect internal phone extensions to the public telephone network. Rather than sending data packets over a traditional circuit-switched network, VoIP, the abbreviation for Voice over Internet Protocol, sometimes also referred to as IP telephony, is a technology that converts voice into digital signals that can be transmitted over internet digital data packets via your local area network/WAN/other infrastructure to enable phone calls. VoIP uses RTP (real-time protocol) to ensure that these packets get delivered timely. You can use either an ethernet cable or a high-speed WiFi connection for VoIP. Here is a short video to help you understand what VoIP is in one minute. How Does VoIP Work? As mentioned above, VoIP basically works by converting analog telephone signals into digital signals to facilitate telephony over the Internet. Now let’s dive a little deeper into detail into the process. SIP Protocol and SIP Trunking. Voice over IP works by using protocol technologies and SIP is one protocol that enables VoIP. Session Initiation Protocol (SIP) is a communication protocol for VoIP calls and other text and multimedia sessions, such as instant messaging and video. SIP trunking, based on the SIP protocol, is basically a service established virtually over your internet connections and provided by Internet Telephony Service Providers (ITSP), eliminating the physical connection to a phone company. Equipment You May Need in order to use VoIP. VoIP phone systems (PBX). A VoIP PBX (Private Branch Exchange) is a business telephone system that facilitates phone calls over the company’s LAN or WAN data network rather than through the circuit-switched networks. VoIP PBX is available in two deployment options – on-premises and cloud-based. With an on-premises voice solution, the hardware is installed and runs on-site at your office or data center while a cloud PBX system is delivered entirely over the Internet and managed completely off-site by a service provider. VoIP phones or IP phones. VoIP phones, or IP phones, are the physical office phones that you can use with a VoIP phone system. Visually, they do not differ much from the traditional, stationary phones you find at your home or on your work desk. Because of this, it’s quite easy for employees to adjust to newer VoIP phones. The one fundamental difference is that they are internet-enabled, whether via WiFi or Ethernet. They are assigned IP addresses to facilitate calls over your network. Mobile phones, computers, network-ready devices. In addition to IP phones, you can also access VoIP phone systems using your own mobile device, computer, and other network-ready devices with VoIP apps or softphone application installed. Today you can make and receive business phone calls anytime, anywhere using your own Internet-connected devices, without worrying about losing VoIP call quality. Employees are no longer tied to a desk phone and may use any device of their choice. VoIP gateways. A VoIP gateway is a hardware device that converts traditional telephony traffic (analog or digital) into packets of data, allowing connections between legacy telephony infrastructure and IP-based communications, acting as a bridge between an IP network, the PSTN (Public Switched Telephone Network), and the cellular network. What Are the Benefits of VoIP? Modern businesses enjoy using VoIP phone service over traditional telephone lines because they can get a lot more value than just improving corporate communications. Below are a few of the many ways VoIP benefits businesses. 1. Cost Savings. VoIP is a budget-friendly way to set up a business communications system. VoIP services could be based on a direct IP connection to your phone service provider, simply on your existing internet connection, or a combination of both. Therefore, it cuts down the cost of internal calls in your organization to virtually none, greatly reduces the expenses of external and international business calls, saving a significant amount of investments on purchasing traditional phone lines, installation, and ongoing maintenance. On-premises and cloud-based VoIP systems are both cost-effective but do have some differences in terms of the cost. Though you need to pay fully upfront for an op-premises system, it protects you from the risk of fee increases and means lower monthly cost after expenses are covered. As for the cloud-based hosted VoIP services, you usually go with an OpEx model with more affordable monthly or annual fees and low initial equipment cost. If your voice and data solutions are currently separate, you can save money by combining the two under one provider. In addition to the cost savings, you’ll also be able to consolidate both internet service and telephony support. TCO Analysis: How to Calculate the Real Cost of a Business Phone System 2. Easy to Install. Comparing to traditional phone systems, the installation and configuration of VoIP systems could be super easy. Traditionally, with a landline system, office phones require physical lines to receive phone service. VoIP phone systems eliminate the need to install any physical phone lines. All you need to do is to connect IP phones to the corporate network via Ethernet lines. Better yet, if you need your IT staff to prioritize more important and revenue-generating projects instead of managing the phone system, hosted phone services leave the work to the service provider and there is no need to worry about any network issues. It would be beneficial for small businesses and start-ups lacking in technical expertise or resources, too. 3. Clear Voice Quality. When Voice over IP was first introduced, its call quality was indeed unsatisfactory. Long gone are those days thanks to the advancement of broadband and Voice over Internet Protocol technology itself. The “poor call quality” is probably the biggest misconception about VoIP now. Rest assured as long as you have a fast and stable Internet connection. Most VoIP providers offer a vast number of different protocols and codecs to ensure HD sound quality. With a robust solution and proper implementation, the voice quality of VoIP can be as good or even better than the landline-based calls. You can’t even tell the difference. Related Conquering 6 Common Fears of Upgrading a Legacy Phone System 5. Mobility & Geographical Flexibility. VoIP enables businesses to extend their communications system to remote offices and on-the-go workers over SIP-enabled devices. For remote workers, the office is wherever they make it as long as the Internet connection is available. The deployment of a multi-site VoIP system can not only keep all dispersed branches connected seamlessly but also reduces the spiraling inter-office call costs. Softphones enable employees to make their office extensions mobile with a wide range of call handling features at hand. Additionally, cloud phone systems make it easy to connect geographically dispersed offices under one phone system and the IT admin can easily manage it from any location. 5. Scalability. Scalability, as one of the most valuable characteristics for businesses, refers to the ability of a system to handle a growing amount of workload, normally by adding resources to the system, without affecting its overall performance or efficiency. VoIP is a scalable solution that can grow with your business, especially the cloud-based VoIP service, which offers greater flexibility for businesses with staff growth or reduction. The increase and decrease of phone extensions can be made immediately and businesses only pay for what they need, without purchasing additional hardware equipment or new dedicated lines. It can all be done, practically in real-time. If you are a seasonal business with fluctuating communications needs or experiencing rapid growth, a hosted model can be a perfect fit for you. 6. Abundance of Features. VoIP services deliver a number of features that are either not supported by traditional telephone systems or only available for an additional fee. These features are more than ‘extras’. Many businesses have found it easy to use VoIP and became more competitive with the full suite of built-in features. Some features may help companies meet important safety and security needs, including the ability to connect with emergency services while using internet VoIP. Below is a list of must-have VoIP features that will boost your business communication efficiency: Call Forwarding. When the called party is unavailable, Call Forwarding helps redirect incoming calls to another desired destination, such as the mobile phone number or other telephone numbers. You can also set up different rules for various scenarios. For example, automatically forward phone calls to another extension when you are busy, ring your mobile phone when no one answers calls to your desk phone, and ask callers to leave voice messages when you are on vacation. Sales personnel and field staff especially no longer need to worry about being away from their desks. Interactive Voice Response (IVR). IVR helps even small businesses offer 24/7 customer services without costly human resources. When customers call in, pre-recorded greetings will direct them to the most appropriate destination with the minimum waiting time. With IVR, you are able to automate customer service, provide satisfactory answers timely, leave a good impression on your customers, and build a professional company image. Ring Group. Include a group of extensions into a ring group so that when a call comes in, all available extensions will ring simultaneously or sequentially up to different ringing strategies you set up. It is very useful in sharing and distributing calls effectively among employees in particular departments. As a result, the overall productivity of your team will be increased and the fastest response to customer calls is guaranteed. Queue. It is a smart move to let an incoming call queue up while waiting for an available agent. Better than being on hold, going to voicemail, or getting a busy tone, the customer is informed that there is currently no available agent to answer the call, and he or she is queueing right now. It reduces the number of missed calls as well as the negative effect of busy signals on customer experience. By segmenting agents into several queues, you can even provide different service levels for different customer groups. Music on Hold. Phone calls may be put on hold sometimes, such as the intervals while you transfer a call to another number, or the waiting time when people participate in a conference call, or Nobody likes awkward silences, so just upload some audio files and customize the on-hold music to please your customers and enhance your corporate image. Call Recording. VoIP phone systems can be set up to automatically detect and record every phone conversation made over the system, including inbound and outbound calls. Businesses usually leverage call recordings as training or coaching tool, to help resolve disputes, for the purpose of review and confirmation, for compliance with their regulations, and to track whether or not customers are satisfied. VoIP technology makes them all simplified. Feature List A Full Suite of VoIP Phone System Features “Does My Business Need a VoIP Phone System?”. We understand that some businesses might have been using traditional phone systems for quite a long time and are not sure whether a VoIP phone system makes sense for their businesses. There are indeed significant differences between VoIP and traditional landline. Here are some questions you could ask yourself before making an informed decision. 1) Is your country experiencing the ISDN switch-off? As technology advances and demands on business communications grow rapidly, the traditional PSTN and ISDN lines can barely live up to the expectations of today’s businesses, gradually slipping further and further into obsolescence. Now the ISDN switch-off is happening all around the globe. As large telecom companies successively announcing to switch off ISDN and PSTN, Germany, Australia, Italy, and many other countries around the globe are experiencing a transformation from traditional landlines to all IP solutions. If you are among the trend, it is critical f to find a seamless and reliable VoIP solution in response to the shutdown. Otherwise, you could lose your telephone service. If you aren’t facing an immediate ISDN switch-off, pay attention to this issue as you may find that your own nation mandates this in the future. You can get ahead of future developments by planning to implement VoIP technology sooner than later. 2) Do you have employees working from home? Since the outbreak of COVID-19, many businesses, which used to be restricted to traditional landlines, have upgraded to VoIP phone systems to facilitate a teleworking environment. Thanks to VoIP, the remote workforce can make and receive business calls with the same number they have in the office with their own devices and access the same calling capabilities. VoIP has become a must-have tool for remote working and also a major step towards digital transformation. Furthermore, by using a VPN (virtual private network) connection along with the VoIP solution, your conversation will be shielded by a tunnel of encryption. A reliable VoIP service provider should be able to provide detailed information on how they secure remote and long-distance communications for customers using their business VoIP solutions. Related Work from Home Smartly: Best Practices on Unifying Your Remote Workforce 3) Can your current analog system address your needs? There are several major problems plaguing traditional telephone services. First of all, traditional PBXs require a high upfront investment, including the purchase of phone lines and hardware (which also needs to be installed by experienced technicians), as well as ongoing maintenance fees. After the installation, it can also be expensive and difficult to scale the system when you experience the need for expansion, such as a significant increase in staff or additional branch locations. Besides, traditional telephone systems generally provide only basic call features and cannot cope with more sophisticated business communication scenarios. With an increasing number of mobile and remote workforce, lack of mobility is becoming one of its major drawbacks. Analog phone services rely on physical lines to transmit voice traffic, which chains employees at desks to handle business calls. Unlike a modern option like VoIP, customization and integration are quite limited on legacy phone systems. They are not able to integrate into today’s business communications ecosystem, which consists of a complex series of advanced applications, leaving voice calls in soils from the rest of a business’s information systems. Infographic: VoIP vs. Analog Phone System: The Differences and Top Considerations Keep reading to find out more about whether a VoIP Phone system makes sense for your business. Things to Consider When Choosing a VoIP Service? It could have a huge impact on your business when deciding on a business communications solution. VoIP may be the best solution, but it’s important to conduct a current state and needs analysis first. Then, you can determine if business VoIP works for you. Here are some tips to help you determine your needs and make smart choices. 1) Do you want to keep existing equipment? Does it support your needs? If you are using the traditional PBX and with a limited budget for a complete replacement of the existing equipment, make sure you select a VoIP solution that allows you to take a phased transition. Whether the new VoIP system is compatible with your traditional phone system, how to connect them together, how to ensure that the upgrade does not affect business continuity, etc. It’s also important to verify that the VoIP service providers you are considering will support that equipment. This is a stage where direct communication with the VoIP provider is key. 2) What kind of unified communications capabilities does it offer? VoIP phone systems offer a range of telephony functionalities to handle audio calls, but communication with colleagues and customers is not only limited to voice. This is why unified communications is introduced to the business communications landscape and also why UC should be one of the top priorities as you evaluate your VoIP options. Unified communications at its simplest is all about making a wealth of communications channels and options into a single point of access. In fact, most UC products reply on VoIP as a core foundation, and many VoIP providers do offer some UC features in their portfolios to further extend the capabilities and flexibility. Common UC features include: Unified Messaging Instant Messaging (chat) Presence Corporate Directory Video Conferencing Team Collaboration 3) Is it possible to integrate into other platforms and tools? It’s critical for businesses to stay agile and ready in such a fast-changing world. With more and more systems, platforms, and software appearing in the workplace, both managers and employees expect to have a unified and integrated solution to improve efficiency, which is why a VoIP system’s ability to integrate and seamlessly work with other solutions becomes way more important than ever. With your telephony system connected to other business-enhancing tools, it will be easier for you and your team to communicate, collaborate, engage with one another, and streamline the overall workflow. Fortunately, there are VoIP providers that ensure their phone service is compatible with some popular collaboration and communication tools. VoIP Phone System Buyer’s Guide. When shopping for VoIP, you’ll find there is a list of VoIP service providers competing for your attention. If you need more information to help figure out what kind of phone system is the best fit for your organization. Here is a guide for you! This guide includes all the key information and useful tips to help you make an informed decision in an easier way. It will help you understand just how VoIP phone systems work, how to select a VoIP provider, and whether this is preferable to regular phone service. Just click to download!   Call Center Reporting: Improve Productivity with Data A Look Back at 2020: Highlight Moments of Yeastar Contacts| Terms of Use| Privacy Policy| Cookie Policy Contatti| Termini di servizio| Norme sulla privac| Cookie Policy Contactos| Condiciones de uso| Política de privacidad| Política de cookies Contacts| Conditions d'utilisation| Confidentialité| Cookies Kontakte| Nutzungsbedingungen| Datenschutzerklärung| Cookie Richtlinie Copyright 2006-2022 Xiamen Yeastar Information Technology Co., Ltd.(闽ICP备14013712号-4) Products Communications P-Series PBX System P-Series Cloud Edition P-Series Software Edition P-Series Appliance Edition Linkus UC Clients Linkus Web Client Linkus Mobile Client Linkus Desktop Client Download More VoIP Products S-Series VoIP PBX VoIP Gateways Workplace Scheduling A one-stop solution for employees to book meeting rooms and other office space easier and faster. Learn More 5G CPE Transforms 5G traffic into Wi-Fi or wired Ethernet signals. Learn More Yeastar Central Management One platform to manage all Cloud PBX Service Delivery Remote Management Value Added Services Remote Access Service Linkus Cloud Service Solutions Business Needs Work from Anywhere Hosted Voice Video Conferencing Call Center Branch Office Learn More Ecosystem IP Phones CRM Integration Intercom Hotel PMS SIP Paging Learn More Industry Hospitality Education Healthcare Transportation Retail Learn More Featured Solutions Microsoft Teams Integration Hikvision Intercom Integration ISDN Switch-off Migration Resources Support Portal For common problems and technical assistance Datasheets Product details such as features and specifications Ebooks Understand how Yeastar solves business challenges 1 Document Center Instruction and information on Yeastar products Firmware Latest firmware for Yeastar products Videos The best parts of Yeastar products in videos 1 Blog Smart tips and latest trends in digital transformation Webinars Open and free webinars help you gain new skills Customer Stories Hear our customers share their success stories 1 Evaluation Guide Everything about Yeastar and Its Solutions All materials to evaluate Yeastar as a PBX vendor on products, solutions, partner program, support, learning resources, etc. Get the Guide All Resources Academy Academy Get Yeastar training and be certified Start Learning 1 Online Training Check the online training schedule 1 1 Onsite Training Check the onsite training schedule 1 1 Training Partners Find a Training Partner that provides local training Feature Explained Self-study Take the Exam Become a Training Partner Certificate Validation Partners Become a Partner Join Yeastar Xcelerate Partner Program and grow your business Find a Distributor Yeastar Distributors support the sale of our solutions Partner Portal Find the tools and resources that help you grow ITSP Partners Technology Partners Unauthorized Online Reseller Company About Us Who is Yeastar and why Yeastar Company News Read all the news about Yeastar 1 Contact Us Ways to get in touch with Yeastar team Awards Recognition for product excellence and for business performance Featured Showcase your Yeahs Story and win applause on social media! Here The Yeahs Awards 2021 entrance is still open and get the chance to win big prizes! Free Trial
Topics
  • Topic
  • Tf
  • Position
  • voip
  • 94
  • 11
  • phone
  • 66
  • 11
  • system
  • 57
  • 11
  • business
  • 49
  • 11
  • call
  • 40
  • 11
  • phone system
  • 32
  • 11
  • service
  • 30
  • 11
  • communication
  • 24
  • 11
  • solution
  • 22
  • 11
  • voip phone
  • 20
  • 11
  • voice
  • 18
  • 11
  • yeastar
  • 17
  • 11
  • internet
  • 17
  • 11
  • traditional
  • 17
  • 11
  • voip phone system
  • 16
  • 11
  • feature
  • 15
  • 11
  • customer
  • 14
  • 11
  • office
  • 13
  • 11
  • network
  • 13
  • 11
  • ip
  • 13
  • 11
  • provider
  • 13
  • 11
  • training
  • 12
  • 11
  • protocol
  • 12
  • 11
  • product
  • 11
  • 11
  • work
  • 11
  • 11
  • pbx
  • 11
  • 11
  • cost
  • 10
  • 11
  • connection
  • 10
  • 11
  • line
  • 10
  • 11
  • telephone
  • 10
  • 11
  • partner
  • 10
  • 11
  • cloud
  • 9
  • 11
  • remote
  • 9
  • 11
  • isdn switch
  • 8
  • 11
  • business communication
  • 8
  • 11
  • voip service
  • 8
  • 11
  • voip system
  • 7
  • 11
  • service provider
  • 7
  • 11
  • phone service
  • 7
  • 11
  • phone call
  • 6
  • 11
  • cloud based
  • 5
  • 11
  • internet connection
  • 5
  • 11
  • ip phone
  • 5
  • 11
  • voip provider
  • 5
  • 11
  • voip solution
  • 5
  • 11
  • series
  • 5
  • 11
  • voice internet protocol
  • 4
  • 11
  • remote workforce
  • 4
  • 11
  • training partner
  • 4
  • 11
  • voice internet
  • 4
  • 11
  • internet protocol
  • 4
  • 11
  • business voip
  • 4
  • 11
  • phone line
  • 4
  • 11
  • traditional telephone
  • 4
  • 11
  • traditional phone
  • 4
  • 11
  • switch
  • 4
  • 11
  • legacy phone system
  • 3
  • 11
  • traditional phone system
  • 3
  • 11
  • voip service provider
  • 3
  • 11
  • voip work
  • 3
  • 11
  • legacy phone
  • 3
  • 11
  • analog phone
  • 3
  • 11
  • connection voip
  • 3
  • 11
  • sip protocol
  • 3
  • 11
  • voip pbx
  • 3
  • 11
  • telephone system
  • 3
  • 11
  • office phone
  • 3
  • 11
  • mobile phone
  • 3
  • 11
  • call quality
  • 3
  • 11
  • voip gateway
  • 3
  • 11
  • business call
  • 3
  • 11
  • traditional landline
  • 3
  • 11
  • unified communication
  • 3
  • 11
  • client linku
  • 3
  • 11
  • yeastar product
  • 3
  • 11
Result 12
TitleWhat is a VoIP Phone and how do they work? | Bluecube
Urlhttps://www.bluecubecloud.com/blog/what-is-voip-phone/
DescriptionWhat is a VoIP Phone? Also known as internet telephony, a VoIP phone is a way of making telephone calls through an internet connection
Date2 Dec 2020
Organic Position11
H1What is a VoIP phone?
H2Blog
Related Articles
Request Demo
Request A Callback
Check my postcode
5 reasons to switch
Request Pricing
H3You’ll hear phrases like VoIP phones, hosted telephony, IP phones and cloud-based telephony being used in business. But what is a VoIP Phone?
We’ve answered the most commonly asked questions about this technology to try and help give you a better understanding
Still got a question that we missed? Then get in touch with our team and we’ll be more than happy to help!
What is a VoIP phone?
Can you use a VoIP phone like a regular phone?
Can I use VoIP on a mobile?
Do I need a VoIP phone?
What are the advantages of using VoIP?
I’ve heard VoIP phones are unreliable. Is this true?
Does VoIP affect Internet speed?
Is VoIP cheaper than a landline?
Interested in getting a VoIP system? Schedule a tailored demo of our VoIP and UC software with one of our team and find out what features your business can enjoy
Lincolnshire Technology & Innovation Awards – We’re Nominated!
Professional Installations Ensure VoIP Delight
Book an online demo or get more info
Flexible contracts | free remote support
Stay online securely
Thinking about switching?
Flexible contracts | 99.999% uptime
H2WithAnchorsBlog
Related Articles
Request Demo
Request A Callback
Check my postcode
5 reasons to switch
Request Pricing
BodyWhat is a VoIP phone? Article by Jack Waby - December 2nd 2020 VoIP Phones & Cloud-based Telephony | Read Time: 3 mins. You’ll hear phrases like VoIP phones, hosted telephony, IP phones and cloud-based telephony being used in business. But what is a VoIP Phone? We’ve answered the most commonly asked questions about this technology to try and help give you a better understanding. Still got a question that we missed? Then get in touch with our team and we’ll be more than happy to help! What is a VoIP phone? VoIP phones use voice over internet protocol (VoIP) technology to deliver an internet based telephone service. Calls are delivered over the internet rather than the traditional legacy technology of the Public Switched Telephone Network (PSTN) or Integrated Services Digital Network (ISDN). Both the PSTN and ISDN networks are set to be decommissioned shortly. Due to the reduced infrastructure needed to deliver phone calls on VoIP technology, voice calls can be provided at a very low cost. VoIP services also use the internet to deliver phone system functionality to the end user. Many new features and useful services are available to small/medium businesses that were previously unaffordable to SME budgets. These include voicemail-to-email, call recording, instant messages, international calling, music-on-hold and call diverts. Can you use a VoIP phone like a regular phone? Yes. A VoIP phone offers the same core service that a regular phone does, the ability to make, receive and manage telephone calls. However, functionality is greater whilst costs are lower. The only real difference is that your voice is communicated via internet connections rather than copper lines. The only requirement is that you have fit for purpose internet access. Can I use VoIP on a mobile? Some voice over IP services, such as Bluecube Cloud Voice,  offer a mobile App that allows you to direct your landline calls to your mobile device. This means that you don’t have to be anywhere near your desk phone to make or receive landline calls. Do I need a VoIP phone? Openreach is intending to stop providing PSTN and ISDN phone lines completely in the UK by 2025. This is because the existing telephone service infrastructure is dated and expensive to maintain. As a result, making the switch a VoIP phone system and internet telephony should be a priority for every business regardless of size or what the business does. What are the advantages of using VoIP? Using a VoIP system has many benefits for businesses. VoIP provides communication at a lower cost compared to traditional landline phones. It can also introduce many advanced features that previously required a large internal infrastructure. This means even small businesses can now introduce features such as on-hold marketing, call recording, voicemail-to-email. CRM integration, remote working via device sync and much more can also be introduced. VoIP phones also allow for easy scalability for growing businesses. Traditional landline phones required costly upgrades or extensions to a business phone system upon the intake of new employees. With VoIP technology, a handset can very quickly and easily be introduced into the network via an existing ethernet port. I’ve heard VoIP phones are unreliable. Is this true? VoIP phones rely on a suitable internet connection to maintain high call quality. When the technology was originally introduced, the IP network was still underdeveloped to support VoIP technology fully. This meant the VoIP phones developed a reputation for delivering poor call quality. Since the widespread expansion of high-speed business broadband, the reliability of the technology has increased and VoIP technology offers a superior failover plan to legacy PSTN or ISDN technology. VoIP calls are now delivered in HD quality and feature services such a Disaster Recovery allow for constant connections, so your calls always go somewhere. Our cloud-based telephony has a 99.999% uptime and in the event of an internet outage calls are automatically forwarded to another location or mobile phone. Does VoIP affect Internet speed? The speed of your internet connection is very important for delivering high-quality phone calls. By its nature, a VoIP call uses far less bandwidth than for example visiting a website. You can prioritise voice data so that in the event of low bandwidth calls get priority over other data. Using VoIP when you have a very fast connection won’t affect your Internet Speed too much. Despite this, we would recommend running your VoIP system through a separate, single-purpose, internet connection to your data network. This helps to guarantee the overall quality of your calls and the two connections act as back-up lines to each other. Is VoIP cheaper than a landline? VoIP is significantly cheaper than traditional phone lines. This is because it does not rely on the legacy technology of PSTN & ISDN to provide a connection. These traditional lines are copper-based networks that providers find expensive to maintain and will decommission soon. Using a cloud-based phone system (VoIP) also introduces many features and guarantee for businesses of all sizes. This allows businesses to get better value-for- money from VoIP systems compared to traditional landlines and on-site phone systems. Interested in getting a VoIP system? Schedule a tailored demo of our VoIP and UC software with one of our team and find out what features your business can enjoy. Request Pricing Related Articles. Lincolnshire Technology & Innovation Awards – We’re Nominated! . Article by Paul Reames - May 16th 2019 Professional Installations Ensure VoIP Delight . Article by Paul Reames - August 4th 2016 © Bluecube 2022. All rights reserved. Website maintained by SOKA Studio. Book an online demo or get more info. Request Demo. Flexible contracts | free remote support. Request A Callback. Discover how VoIP & UC can transform your business communications. Flexible, cloud-based remote working solutions to suit your team, any place, any device. Future-proof your phone systems Communicate effectively from anywhere Scalable from one to unlimited users Save money and improve efficiency within your business Expert advice & award winning support Stay online securely. Check my postcode. Thinking about switching? 5 reasons to switch. If you’re thinking about switching then take a look at these five reasons why you should switch: Flexible – use a phone, laptop, mobile, tablet PC or MacScalable – 1 to an unlimited number of usersEfficient – increase productivity & efficiency with VoIPInformative – reporting that helps you increase efficiencyAffordable – start simple an add features from just £6.99 +VAT per user per month Flexible contracts | 99.999% uptime. Request Pricing. Hundreds of companies have enhanced their Business Connectivity with Bluecube. Request our pricing to see how much money you can save on our superior voice, mobile and broadband deals: Simple pricing you can understand Voice, Mobile & Broadband in one bill No obligation for a quote
Topics
  • Topic
  • Tf
  • Position
  • voip
  • 39
  • 12
  • phone
  • 33
  • 12
  • call
  • 20
  • 12
  • business
  • 18
  • 12
  • internet
  • 15
  • 12
  • voip phone
  • 14
  • 12
  • system
  • 12
  • 12
  • technology
  • 12
  • 12
  • feature
  • 9
  • 12
  • voice
  • 9
  • 12
  • service
  • 9
  • 12
  • connection
  • 9
  • 12
  • cloud
  • 7
  • 12
  • landline
  • 7
  • 12
  • based
  • 7
  • 12
  • network
  • 7
  • 12
  • mobile
  • 7
  • 12
  • internet connection
  • 6
  • 12
  • voip system
  • 6
  • 12
  • cloud based
  • 6
  • 12
  • phone system
  • 6
  • 12
  • money
  • 6
  • 12
  • telephony
  • 6
  • 12
  • line
  • 6
  • 12
  • quality
  • 6
  • 12
  • traditional
  • 6
  • 12
  • voip technology
  • 5
  • 12
  • pricing
  • 5
  • 12
  • pstn
  • 5
  • 12
  • isdn
  • 5
  • 12
  • request
  • 5
  • 12
  • based telephony
  • 4
  • 12
  • traditional landline
  • 4
  • 12
  • request pricing
  • 4
  • 12
  • pstn isdn
  • 4
  • 12
  • article
  • 4
  • 12
  • telephone
  • 4
  • 12
  • speed
  • 4
  • 12
  • flexible
  • 4
  • 12
  • cloud based telephony
  • 3
  • 12
  • phone voip
  • 3
  • 12
  • demo
  • 3
  • 12
Result 13
TitleHow Does VoIP Work? | Beginners Guide To Voice Over Internet Protocol
Urlhttps://www.cloud4sure.net/how-does-voip-work
DescriptionVoIP or voice over internet protocol is a communication system that compresses and converts your voice and turns it into data that is then transferred over the internet. CLICK the link above to learn more
Date
Organic Position12
H1Cloud 4 Sure Ltd
H2how does voip work
So, what is VoIP?
How does a VoIP system work?
Advantages to VoIP
Disadvantages of VoIP
Why do businesses need VoIP?
H3NETWORK SECURITY
INTERNET CONNECTIVITY
VoIP Telephone
OFFICE 365
Significant long term saving costs with VoIP
Cut down on your phone bill
VoIP provides extra functions
No more bulky servers
Upfront cost
VoIP relies on stable power source and high speed internet
IP address and emergency callss
Limited integration capabilities
Broadband connection speed
H2WithAnchorshow does voip work
So, what is VoIP?
How does a VoIP system work?
Advantages to VoIP
Disadvantages of VoIP
Why do businesses need VoIP?
BodyCloud 4 Sure Ltd Facebook Twitter LinkedIn YouTube Instagram Pinterest 01903 339955. Navigate to... Home About Services -  Web hosting -  Server hosting -  Domain names -  Microsoft cloud services -  Microsoft Teams -  Ssl certificates -  Email protection -  Cloud backup -  Connectivty (broadband & lease lines) -  Safe search web filter -  Network Security -  Antivirus -  Routers -  office 365 backup -  business leased line -  business broadband -  voip phone systems Blog Support -  Knowledge Base -  Microsoft Teams FAQ Store Contact NETWORK SECURITY. Protect the usability and integrity of your network and data.Include both hardware and software technologiesCLICK HERE INTERNET CONNECTIVITY. Business GradeTelecoms, Broadband and Lease Lines.CLICK HERE VoIP Telephone. Reduce your expenses and save at least 35% on your traditional telephone linesby migrating to the cloud. CLICK HERE OFFICE 365. Work anywhere, anytime on any device. Office 365 provides a complete set of tools to increase productivity and collaboration, whether you're working in the office or on the go.CLICK HERE how does voip work. How does VoIP work? Voice over Internet Protocol (VoIP) is a term that is coming more and more into prominence amongst businesses seeking a reliable, effective digital method of communications over and above traditional phone system. VoIP has changed the way that many businesses communicate. It can be used as the sole means of making phone calls, or it can be installed alongside mobile phone and landline, offering enhanced connectivity, affordability and high quality standard voice calls. So, what is VoIP? Put simply, VoIP is a way of making and receiving voice calls, normally delivered via an existing broadband or similar internet connection, as opposed to the local phone exchange. The VoIP service provider establishes the call between the participants and maintains the digital means of communications. To understand how does VoIP work and make VoIP calls, you need a high-speed internet connection that includes a router and modem, along with compatible desk phone or a VoIP calling app and an IP address to enable calls to be made from your network. The technology behind VoIP is evolving rapidly, adding new phone features and enhancing cyber security and privacy to make the user experience even greater with each development. Businesses can connect to offices, clients, suppliers and audiences across the world clearly, immediately, and at an affordable rate. How does a VoIP system work? A VoIP phone system digitises analogue voice signals, sending them between the sender and receiver. You can call both phone landlines and mobile phone, as well as computer-to-computer using microphones and speakers or headsets to communicate. Many VoIP providers also operate an App that you can install on a smart phone and use to simultaneously call the App, handset and/or headset remotely via a 3G or 4G connection. Analogue signals are converted into digital signals and sent to the receiver via the internet in a similar way to digital data such as emails or online content. Alternatively, the signals can travel via the phone itself if it is set up in the right way or via an ATA (Analogue Terminal Adapter) installed to perform this function within the system. All data is kept securely in business cloud-based information storage. The VoIP system itself is controlled via a dashboard within the chosen control system or App, making the system and its products easy and secure to use. The dashboard buttons enable you to add contacts, forward calls and customise the standard delivery service to suit your individual business needs. Advantages to VoIP. There are many advantages to switching to VoIP, or adding the functionality to your business communications portfolio. Significant long term saving costs with VoIP . For a start, the system can offer significant cost savings, partly because you can use your internet service to make calls, thus doing away with the need for an additional, expensive landline phone system. You are doubtless already paying for broadband or other wireless provision, so the cost of running a VoIP service via your internet connection will have already been covered in your main internet bill. Cut down on your phone bill . On a similar note, the versatility of the system can often enable users to commandeer any spare network capacity from their main internet provision and allocate it to VoIP. This means that, after initial installation costs, the service will not cost anything extra to operate. This can significantly cut down the phone bill for businesses, especially those that make a lot of international calls or rely on video conferencing apps like Skype to communicate globally. VoIP provides extra functions . VoIP allows users to add or remove extra functions as required, meaning that you can set up the system just as you wish. Useful features include rerouting all incoming phone calls to your VoIP so that you can access them all in one place, rather than juggling multiple landlines and mobile phones. This is especially useful for remote or home workers, who can access the system from wherever they are, from multiple numbers. No more bulky servers . Finally, businesses no longer need to physically accommodate bulky servers or operate complicated phone exchanges to communicate effectively – they just need desk phone extensions for each individual user that are compatible with VoIP technology. This saves room, reduces reliance on technical support and allows people to be far more flexible when it comes to where and how they are working. Hosted, business cloud-based VoIP services also remove the need for in-house support resources, as the host company will normally provide access to the relevant products, expertise and advice. Disadvantages of VoIP. Upfront cost . Disadvantages to the system could include the cost, if you need to install everything from scratch, or are starting out in a building without any pre-existing connections or equipment. You must ensure that you have the appropriate internet connectivity, power source and telephony equipment. This can represent a sizable investment if everything must be purchased at the same time. However, once the system is up and running, it can save money when compared to a more traditional phone service that’s connected to the local exchange. VoIP relies on stable power source and high speed internet . The system also relies on a stable power source being available, and a high-speed internet connection. Issues such as power outrages or interruptions in internet provision will also affect VoIP performance. It is wise to maintain a mobile phone, or second system to compensate for any issues that occur beyond the control of the VoIP system. This enables you to keep running your business, and to access emergency help if required. IP address and emergency callss. On the subject of emergency help, VoIP operates using an IP address, making it harder for emergency services operators to track you down geographically just from your call. You will need to supply the relevant information during your conversation with them to enable them to find you and deliver help. Limited integration capabilities. Finally, other digital systems offer increased flexibility when it comes to linking other services, such as CCTV and other privacy, cyber security or surveillance systems, digital and other types of phone systems. The capacity to do this is currently much more limited with VoIP. However, as already mentioned above, VoIP technology is advancing quickly, and it is well worth keeping an eye on its progress, and how new wireless functionality might be able to help you and your business in the future. Broadband connection speed. VoIP requires reliable bandwidth to work properly and transmit the voice data in a specific amount of time. The higher your bandwidth is, the more data you can transfer via your broadband connection. When choosing how much bandwidth to install, it is wise to start with how many VoIP phone calls you anticipate making, as well as how much internet and other phone call functionality your business requires. The following chart offers some insight into how much bandwidth your organisation might require, according to how many concurrent calls you will make: Number of concurrent calls Minimum required bandwidth Recommended speed 1 100 Kbps Up and Down 3 MBps Up and Down 3 300 Kbps Up and Down 3 MBps Up and Down 5 500 Kbps Up and Down 5 MBps Up and Down 10 1 MBps Up and Down 5-10 MBps Up and Down Why do businesses need VoIP? Businesses of all shapes and sizes can benefit from installing VoIP phone systems for their employees to communicate clearly and effectively with customers. The system can help to reduce communications costs, improve productivity and encourage greater collaboration across different geographical locations. Customer details, sales data and other valuable pieces of information can also be accessed instantly by anyone in the business who needs them, wherever they are working, whenever they need them. Additionally, businesses can use VoIP capabilities to plan video conferencing, remote meetings and instant messaging, reducing the need for physical travel and offering greater flexibility in working practices. Reduced reliance on mass meetings and physical contact can also have a knock-on effect on rental costs and utility bills by doing away with need for larger office areas to accommodate collaborative working. Choosing a cloud-based system also cuts out the requirement to employ on-site IT teams to plan and maintain the associated IT, as the hosting company usually provides this service as part of your overall VoIP package. Let us set up your new VoIP phone system for your business. If your business is looking for expert support and insights around installing or running your new VoIP phone system, please get in touch with Cloud 4 Sure for details of our pricing and to find out how we can help you find the right solutions. Call us to book a no-obligation initial consultation, or contact us online. Facebook Twitter LinkedIn YouTube Instagram Pinterest Locations: Fareham , Chichester Website Design by Webfactory This site uses cookies to help make your experience the best we can. You can find out more about the cookies we use by reading our cookie policy. Accept Decline × × × ×
Topics
  • Topic
  • Tf
  • Position
  • voip
  • 42
  • 13
  • phone
  • 27
  • 13
  • system
  • 26
  • 13
  • business
  • 21
  • 13
  • call
  • 18
  • 13
  • mbp
  • 15
  • 13
  • internet
  • 14
  • 13
  • service
  • 12
  • 13
  • cloud
  • 10
  • 13
  • phone system
  • 9
  • 13
  • cost
  • 9
  • 13
  • connection
  • 8
  • 13
  • broadband
  • 7
  • 13
  • voip phone
  • 6
  • 13
  • speed
  • 6
  • 13
  • office
  • 6
  • 13
  • work
  • 6
  • 13
  • digital
  • 6
  • 13
  • voip phone system
  • 5
  • 13
  • network
  • 5
  • 13
  • working
  • 5
  • 13
  • voice
  • 5
  • 13
  • communicate
  • 5
  • 13
  • making
  • 5
  • 13
  • app
  • 5
  • 13
  • enable
  • 5
  • 13
  • data
  • 5
  • 13
  • bandwidth
  • 5
  • 13
  • phone call
  • 4
  • 13
  • mobile phone
  • 4
  • 13
  • internet connection
  • 4
  • 13
  • bill
  • 4
  • 13
  • access
  • 4
  • 13
  • power
  • 4
  • 13
  • emergency
  • 4
  • 13
  • find
  • 4
  • 13
  • high speed internet
  • 3
  • 13
  • kbp mbp
  • 3
  • 13
  • mbp 10
  • 3
  • 13
  • office 365
  • 3
  • 13
  • voip work
  • 3
  • 13
  • work voip
  • 3
  • 13
  • voip service
  • 3
  • 13
  • high speed
  • 3
  • 13
  • speed internet
  • 3
  • 13
  • ip address
  • 3
  • 13
  • voip system
  • 3
  • 13
  • cloud based
  • 3
  • 13
  • functionality business
  • 3
  • 13
  • power source
  • 3
  • 13
  • kbp
  • 3
  • 13
Result 14
TitleWhat is Voice Over IP (VoIP) and How Does it Work? - Cisco
Urlhttps://www.cisco.com/c/en_in/solutions/small-business/resource-center/unified-communications/voip-how.html
DescriptionVoice over IP (VoIP) reduces cost and improves productivity for many businesses. Learn more about what VoIP is, how it works and and how it can help your business
Date
Organic Position13
H1What is Voice Over IP (VoIP) and How Does it Work?
H2Simplify Your Connections
H3How VoIP Works: At a Glance
How VoIP Works for Your Business
Other articles you may be interested in:
Contact Cisco
H2WithAnchorsSimplify Your Connections
BodyWhat is Voice Over IP (VoIP) and How Does it Work? Simplify Your Connections. Cisco Business Edition is the phone system you' ve always wanted, plus much more. (2:05 min) Watch Video How Voice over IP (VoIP) works is a mystery to some small business owners and employees. But if you understand how it works, you can more easily use the technology to your company's advantage. How VoIP Works: At a Glance. With VoIP, analog voice calls are converted into packets of data. The packets travel like any other type of data, such as e-mail, over the public Internet and/or any private Internet Protocol (IP) network. Using a VoIP service, you can call landline or cell phones. You can also call computer-to-computer, with both parties speaking into a computer microphone and listening through computer speakers or headsets. When evaluating, it's worth noting that you can make or receive calls using landline telephones. All you need is an analog telephone adapter connected to your network. Also, to ensure the best voice quality and security, consider using your VoIP or other communications system on a private IP network. How VoIP Works for Your Business. How VoIP works for your business is simple: By adding voice to a data network, you’ll reduce costs, improve productivity, and enhance collaboration. You'll save money by having one network to manage instead of two. You can easily add, move, or change phone extensions and locations, which saves money and gives you more flexibility. Your workforce can use your communications system from home or on the road. Also, wireless IP phones connect users to your communications system and data resources, such as customer information, while they're in the warehouse, on the sales floor, or anywhere they can access your data network wirelessly. Unified communications solutions for small businesses go beyond basic VoIP capabilities in enhancing collaboration. With a unified communications solution, workers can easily collaborate through voice, video chat, Web conference, and instant messaging. Employees can collaborate using each technology individually or all of them simultaneously, and from a single, easy-to-use interface. Find out about Cisco Unified Communications solutions tailored specifically for small businesses. Contact a Cisco partner who can help you determine the best communications solution for your business. Other articles you may be interested in:. Voice Over IP FAQ Talk to Sales Contact Cisco. Get a call from Sales Contact Sales via Email Product / Technical Support 000-800-040-2263 9:00am-6:00pm See Offers Contact Sales Products Resource Center Follow Us News & EventsNewsroomEventsBlogsCommunity About Us About Us Customer stories About Cisco Customer stories Investor relations Social responsibility E-Waste Recycling Program The Trust Center Contact Us Contact Us Contact Cisco Meet our partners Find a reseller Work with Us Careers We Are Cisco Partner with Cisco Cisco Sites Meraki All new Webex Cisco Umbrella
Topics
  • Topic
  • Tf
  • Position
  • cisco
  • 10
  • 14
  • voip
  • 9
  • 14
  • voice
  • 7
  • 14
  • work
  • 7
  • 14
  • business
  • 7
  • 14
  • communication
  • 7
  • 14
  • contact
  • 7
  • 14
  • computer
  • 6
  • 14
  • data
  • 6
  • 14
  • ip
  • 6
  • 14
  • network
  • 6
  • 14
  • voip work
  • 5
  • 14
  • call
  • 5
  • 14
  • sale
  • 5
  • 14
  • communication solution
  • 4
  • 14
  • phone
  • 4
  • 14
  • system
  • 4
  • 14
  • solution
  • 4
  • 14
  • unified communication solution
  • 3
  • 14
  • voice ip
  • 3
  • 14
  • small business
  • 3
  • 14
  • communication system
  • 3
  • 14
  • unified communication
  • 3
  • 14
  • contact cisco
  • 3
  • 14
  • small
  • 3
  • 14
  • easily
  • 3
  • 14
  • customer
  • 3
  • 14
  • unified
  • 3
  • 14
  • partner
  • 3
  • 14
Result 15
TitleWhat is VoIP and how does it work? - Carritech Telecommunications
Urlhttps://www.carritech.com/news/what-is-voip-and-how-does-it-work/
DescriptionVoIP or Voice over Internet Protocol, also known as IP Telephony or Internet Calling is an alternative way of making phone calls that can be less costly than standard telephone calls over PSTN (Public Switched Telephone Network)
Date20 Apr 2018
Organic Position14
H1Blog
H2What are the advantages of VoIP services?
What are the disadvantages of VoIP services?
VoIP is here and it is here to stay
Attenuation in telecom networks
Fiber Optics: Explained (INFOGRAPHIC)
What is DDM and DOM for Optical Transceivers?
Telecoms trends to look out for in 2022: What should we expect?
Telecom Inventory Management – Managing Excess Stock
When Will 4G Be Phased Out?
Client login
H3Pin It on Pinterest
H2WithAnchorsWhat are the advantages of VoIP services?
What are the disadvantages of VoIP services?
VoIP is here and it is here to stay
Attenuation in telecom networks
Fiber Optics: Explained (INFOGRAPHIC)
What is DDM and DOM for Optical Transceivers?
Telecoms trends to look out for in 2022: What should we expect?
Telecom Inventory Management – Managing Excess Stock
When Will 4G Be Phased Out?
Client login
BodyBlog Industry News What is VoIP and how does it work? April 20, 2018 VoIP or Voice over Internet Protocol, also known as IP Telephony or Internet Calling is an alternative way of making phone calls that can be less costly than standard telephone calls over PSTN (Public Switched Telephone Network). This article explains what VoIP is, how it works and the advantages and disadvantages of VoIP calling over standard, traditional telephone services. How does VoIP work? VoIP works by taking standard analog audio signals and converts them in to digital data that can be transmitted over the internet using the IP Protocol. Interestingly there isn’t just one way of placing a call via VoIP, instead there are three different types of VoIP service that are commonly used today. These are: ATA: This is simplest and most common form of VoIP calling. By using an ATA (Analog Telephone Adaptor), you are able to connect a standard phone to your computer or your internet connection for use with VoIP. An ATA is an analog to digital converter which takes the analog signal from your phone and converts it into digital data for transmission over the internet. It’s extremely straight forward to use and so it has been widely adopted around the world. IP Phones: An IP phone is a specialized phone that looks like a regular phone with the usual handset you would expect to see, along with the cradle and buttons, however instead of hacing a standard RJ-11 phone connector, IP phones have an RJ-45 Ethernet connector instead. IP phones connect directly to your router and have all the necessary onboard hardware and software onboard to handle the IP call. Computer-to-Computer: Of all three of the main systems, this would be the easiest way of using VoIP. Computer-to-computer VoIP calls use software loaded on your PC or device, a microphone and speakers (or headset) and your internet connection to allow you to make calls from computer to computer. Popular services like Skype utilise this VoIP platform to provide their services. What are the advantages of VoIP services? There are a lot of advantages to using VoIP over traditional phone services. These include: Cost: For many businesses, VoIP is a way to easily cut down communication costs.  The great thing about VoIP is it utilises pre-existing infrastructure without additional costs. In many cases VoIP services can be used for free with computers or devices that have the right software, and even in some cases with mobile and landline phones. When you consider the costs associated with international business calls, this becomes an obvious alternative for business owners around the world. Easy configuration, installation and maintenance: Another benefit to using VoIP services is that they are easy to install, configure and maintain. You don’t usually require an engineer to set it up as the physical setup is so simple. Once the system is connected it is also very straight forward to configure and customise the system for each user using the portal or software provided by the system manufacturer. Scalability: It’s not always easy to predict how many phones you’ll need over the next year, and if you have a traditional phone system, you have to estimate carefully to avoid spending money on phone lines you won’t use. All this goes away with VoIP systems. With VoIP for your business, you can add a line as soon as you add a new employee, and when an employee leaves, you can easily reassign or remove the line. You always have the right number of phone lines for your needs. What are the disadvantages of VoIP services? Albeit only limited, there are a couple of disadvantages to using VoIP services over PSTN. They include: Power dependency: A standard phone system runs on phantom power that is provided over the line from the central office. Even if your power goes out, your phone (unless it is a cordless) still works. With VoIP, no power means no phone. A stable power source must be created for VoIP to function. Emergency calls: This can be an issue with VoIP calling. Because VoIP uses IP-addressed phone numbers there is no way to associate a geographic location with an IP address. So, if the caller can’t tell the emergency services operator where he is located, then there’s no way to know which call center to route the emergency call to and which service should respond. Service reliability: As VoIP relies on a steady internet connection, it can be susceptible to the same issues associated with standard home broadband services. All of these factors affect call quality: latency, jitter and packet loss. Phone conversations can become distorted, garbled or lost because of transmission errors. VoIP is here and it is here to stay. For a relatively new technology, VoIP has already become widely accepted around the world. There are still a lot of improvements that can be made and are expected to be implemented over the next few years. Around the world operators are launching VoIP services if they haven’t already, and some major operators have begun to move to a fully digital service. Recently BT announced they would be switching off their PSTN and ISDN network by 2025 and switching to a single IP based network. It’s clear that VoIP is here and will continue to be rapidly adopted around the world. Next article: « Current global positioning for various countries deployment of 5G services Stay informed! Get all of our latest news sent to your inbox each month. ' Related Articles Attenuation in telecom networks . November 8, 2017 Fiber Optics: Explained (INFOGRAPHIC) . August 14, 2017 What is DDM and DOM for Optical Transceivers? . May 15, 2018 Latest Telecoms trends to look out for in 2022: What should we expect? . Telecom Inventory Management – Managing Excess Stock . When Will 4G Be Phased Out? . Connect with CarritechTwitterLinkedInFacebookYoutubePinterestContact us Client login.  Facebook Twitter Google+ LinkedIn Pinterest StumbleUpon Tumblr Blogger Myspace Delicious Yahoo Mail Gmail Newsvine Digg FriendFeed Buffer Reddit VKontakte Pin It on Pinterest.
Topics
  • Topic
  • Tf
  • Position
  • voip
  • 32
  • 15
  • phone
  • 21
  • 15
  • service
  • 17
  • 15
  • computer
  • 12
  • 15
  • call
  • 11
  • 15
  • ip
  • 10
  • 15
  • voip service
  • 7
  • 15
  • internet
  • 7
  • 15
  • standard
  • 7
  • 15
  • system
  • 7
  • 15
  • work
  • 5
  • 15
  • world
  • 5
  • 15
  • line
  • 5
  • 15
  • power
  • 5
  • 15
  • voip work
  • 4
  • 15
  • ip phone
  • 4
  • 15
  • calling
  • 4
  • 15
  • telephone
  • 4
  • 15
  • network
  • 4
  • 15
  • analog
  • 4
  • 15
  • digital
  • 4
  • 15
  • software
  • 4
  • 15
  • cost
  • 4
  • 15
  • business
  • 4
  • 15
  • disadvantage voip
  • 3
  • 15
  • voip calling
  • 3
  • 15
  • internet connection
  • 3
  • 15
  • disadvantage
  • 3
  • 15
  • traditional
  • 3
  • 15
  • ata
  • 3
  • 15
  • connect
  • 3
  • 15
  • connection
  • 3
  • 15
  • easy
  • 3
  • 15
  • emergency
  • 3
  • 15
  • operator
  • 3
  • 15
  • telecom
  • 3
  • 15
Result 16
TitleVoice Over Internet Protocol (VoIP) | Federal Communications Commission
Urlhttps://www.fcc.gov/general/voice-over-internet-protocol-voip
DescriptionIP-Enabled Services Voice over Internet Protocol (VoIP), is a technology that allows you to make voice calls using a broadband Internet connection instead of a regular (or analog) phone line. Some VoIP services may only allow you to call other people using the same service, but others may allow you to call anyone who has a telephone number - including local, long distance,
Date
Organic Position15
H1Federal Communications Commission
H2IP-Enabled Services
Frequently Asked Questions
H3How VoIP / Internet Voice Works
What Kind of Equipment Do I Need?
Is there a difference between making a Local Call and a Long Distance Call?
If I have VoIP service, who can I call?
What Are Some Advantages of VoIP?
What Are Some disadvantages of VoIP?
Can I use my Computer While I talk on the Phone?
Can I Take My Phone Adapter with me When I Travel?
Does my Computer Have to be Turned on?
How Do I Know If I have a VoIP phone Call?
Does the FCC Regulate VoIP?
Events
Headlines
H2WithAnchorsIP-Enabled Services
Frequently Asked Questions
BodyFederal Communications Commission Magnifying-glass Browse bycategory Browse bybureaus & offices Menu About the FCCAbout the FCC Overview What We Do Rulemaking Process Leadership FCC Initiatives Find People Organizational Charts Advisory Committees Jobs and Internships Contracting Strategic Plans & Budgets Contact FY 2022 Congressional Budget Request Privacy Policy Accessibility Program Proceedings & ActionsProceedings and Actions Overview Electronic Comment Filing System (ECFS) Commission Documents (EDOCS) Most Active Proceedings Items on Circulation Ex-Parte Daily Digest Mergers & Transactions Auctions Paper Filings Licensing & DatabasesOverview About Licensing Databases Fees Forms ASR CDBS COALS CORES CSRS DIRS EA ECFS EDOCS ELS ETFS ETRS GenMen HAM KDB KIDVID LMS MyIBFS NORS PIF PSIX-ESIX RLD SADCS TCB TCNS ULS VPD FCC Registration System (CORES) System Alerts & Notifications Reports & ResearchReports and Data Overview Reports Data Guides Maps Working Papers For Developers Fiscal Year 2018-2022 Strategic Plan Workload Dashboard News & EventsNews and Events Overview Headlines Commission Meetings Events Archived Events FCC Podcast Notes from the FCC FCC Blog RSS Feeds & Email Signup January 2022 Open Commission Meeting For ConsumersHelp Center Overview Consumer Blogs Consumer Complaint Center Disability Rights Headlines Social Media Emergency Broadband Benefit Robocalls Consumer Complaint Center Consumer Enforcement International Media Public Safety Wireless Wireline Offices Voice Over Internet Protocol (VoIP) IP-Enabled Services. Voice over Internet Protocol (VoIP), is a technology that allows you to make voice calls using a broadband Internet connection instead of a regular (or analog) phone line. Some VoIP services may only allow you to call other people using the same service, but others may allow you to call anyone who has a telephone number - including local, long distance, mobile, and international numbers. Also, while some VoIP services only work over your computer or a special VoIP phone, other services allow you to use a traditional phone connected to a VoIP adapter. Frequently Asked Questions. How VoIP / Internet Voice Works. VoIP services convert your voice into a digital signal that travels over the Internet. If you are calling a regular phone number, the signal is converted to a regular telephone signal before it reaches the destination. VoIP can allow you to make a call directly from a computer, a special VoIP phone, or a traditional phone connected to a special adapter. In addition, wireless "hot spots" in locations such as airports, parks, and cafes allow you to connect to the Internet and may enable you to use VoIP service wirelessly. What Kind of Equipment Do I Need? A broadband (high speed Internet) connection is required. This can be through a cable modem, or high speed services such as DSL or a local area network. A computer, adaptor, or specialized phone is required. Some VoIP services only work over your computer or a special VoIP phone, while other services allow you to use a traditional phone connected to a VoIP adapter. If you use your computer, you will need some software and an inexpensive microphone. Special VoIP phones plug directly into your broadband connection and operate largely like a traditional telephone. If you use a telephone with a VoIP adapter, you'll be able to dial just as you always have, and the service provider may also provide a dial tone. Is there a difference between making a Local Call and a Long Distance Call? Some VoIP providers offer their services for free, normally only for calls to other subscribers to the service. Your VoIP provider may permit you to select an area code different from the area in which you live. It also means that people who call you may incur long distance charges depending on their area code and service. Some VoIP providers charge for a long distance call to a number outside your calling area, similar to existing, traditional wireline telephone service. Other VoIP providers permit you to call anywhere at a flat rate for a fixed number of minutes. If I have VoIP service, who can I call? Depending upon your service, you might be limited only to other subscribers to the service, or you may be able to call anyone who has a telephone number - including local, long distance, mobile, and international numbers. If you are calling someone who has a regular analog phone, that person does not need any special equipment to talk to you. Some VoIP services may allow you to speak with more than one person at a time. What Are Some Advantages of VoIP? Some VoIP services offer features and services that are not available with a traditional phone, or are available but only for an additional fee. You may also be able to avoid paying for both a broadband connection and a traditional telephone line. What Are Some disadvantages of VoIP? If you're considering replacing your traditional telephone service with VoIP, there are some possible differences: Some VoIP services don't work during power outages and the service provider may not offer backup power. Not all VoIP services connect directly to emergency services through 9-1-1. For additional information, see VoIP & 911 Advisory. VoIP providers may or may not offer directory assistance/white page listings. Can I use my Computer While I talk on the Phone? In most cases, yes. Can I Take My Phone Adapter with me When I Travel? Some VoIP service providers offer services that can be used wherever a high speed Internet connection available. Using a VoIP service from a new location may impact your ability to connect directly to emergency services through 9-1-1. For additional information, see VoIP & 911 Advisory. Does my Computer Have to be Turned on? Only if your service requires you to make calls using your computer. All VoIP services require your broadband Internet connection to be active. How Do I Know If I have a VoIP phone Call? If you have a special VoIP phone or a regular telephone connected to a VoIP adapter, the phone will ring like a traditional telephone. If your VoIP service requires you to make calls using your computer, the software supplied by your service provider will alert you when you have an incoming call. Does the FCC Regulate VoIP? In June 2005 the FCC imposed 911 obligations on providers of interconnected VoIP services VoIP services that allow users generally to make calls to and receive calls from the regular telephone network. You should know, however, that 911 calls using VoIP are handled differently than 911 calls using your regular telephone service. Please see our consumer fact sheet on VoIP and 911 services for complete information on these differences. In addition, the FCC requires interconnected VoIP providers to comply with the Communications Assistance for Law Enforcement Act of 1994 (CALEA) and to contribute to the Universal Service Fund, which supports communications services in high-cost areas and for income-eligible telephone subscribers. Aspects of these considerations may change with new developments in internet technology. You should always check with the VoIP service provider you choose to confirm any advantages and limitations to their service. For more information about VoIP see our factsheet (pdf file). Note Aspects of these considerations may change with new developments in internet technology. You should always check with the VoIP service provider you choose to confirm any advantages and limitations to their service.   Events. VoIP Forum - 12/1/03 VoIP Summit - 5/7/04 Headlines. 5/13/09 FCC Requires VoIP Providers to Notify Consumers of Plans to Discontinue Service. News Release: Word | Acrobat Report & Order: Word | Acrobat Copps Statement: Word | Acrobat Adelstein Statement: Word | Acrobat McDowell Statement: Word | Acrobat 11/8/07 FCC Expands Local Number Portability to VoIP.Order: Word | Acrobat 10/31/07 FCC Expands Local Number Portability to VoIP. News Release: Word | Acrobat Martin Statement: Word | Acrobat Copps Statement: Word | Acrobat Adelstein Statement: Word | Acrobat Tate Statement: Word | Acrobat McDowell Statement: Word | Acrobat   8/6/07 Assessment and Collection of Regulatory Fees for Fiscal Year 2007. Order: Word | Acrobat Copps Statement: Word | Acrobat Adelstein Statement: Word | Acrobat 6/15/07 Disability Access Requirements Extended to VOIP Services. Order: Word | Acrobat News Release (5/31/07): Word | Acrobat Martin Statement: Word | Acrobat Copps Statement: Word | Acrobat Adelstein Statement: Word | Acrobat Tate Statement: Word | Acrobat McDowell Statement: Word | Acrobat 5/31/07 Disability Access Requirements Extended to VOIP Services. News Release: Word | Acrobat Martin Statement: Word | Acrobat Copps Statement: Word | Acrobat Adelstein Statement: Word | Acrobat McDowell Statement: Word | Acrobat 4/18/07 Assessment and Collection of Regulatory Fees for Fiscal Year 2007. NPRM: Word | Acrobat 4/16/07 Broadband Data Notice of Proposed Rulemaking (FCC 07-17). NPRM: Word | Acrobat Martin Statement: Word | Acrobat Copps Statement: Word | Acrobat Adelstein Statement: Word | Acrobat Tate Statement: Word | Acrobat McDowell Statement: Word | Acrobat 4/2/07 FCC Strengthens Privacy Rules to Prevent Pretexting. News Release: Word | Acrobat Order: Word | Acrobat Martin Statement: Word | Acrobat Copps Statement: Word | Acrobat Adelstein Statement: Word | Acrobat Tate Statement: Word | Acrobat McDowell Statement: Word | Acrobat 03/01/07 Time Warner Cable Request for Declaratory Ruling that Competitive Local Exchange Carriers May Obtain Interconnection Under Section 251 of the Communications Act of 1934, as Amended, to Provide Wholesale Telecommunications Services to VoIP Providers. Order: Word | Acrobat Martin Press Statement: Word | Acrobat 10/19/06 FCC Releases Funding Year 2007 Eligible Services List for Schools and Libraries Services Mechanism. Public Notice: Word | Acrobat List: Word | Acrobat 6/27/06 FCC Updates Approach for Assessing Contributions to the Federal Universal Service Fund. R&O & NPRM: Acrobat News Release (06/21/06): Word | Acrobat Martin Statement: Acrobat Copps Statement: Acrobat Adelstein Statement: Acrobat Tate Statement: Acrobat McDowell Statement: Acrobat 05/03/06 FCC Adopts Order to Enable Law Enforcement to Access Certain Broadband and VoIP Providers. News Release: Word | Acrobat Martin Statement: Word | Acrobat Copps Statement: Word | Acrobat Adelstein Statement: Word | Acrobat Tate Statement: Word | Acrobat 8/26/05 Enforcement Bureau Provides Further Guidance to Interconnected Voice Over Internet Protocol Service Providers Concerning Enforcement of Subscriber Acknowledgement Requirement. Public Notice: Word | Acrobat 7/26/05 Enforcement Bureau Provides Guidance on VoIP Providers' July 29, 2005 Subscriber Notification Deadline. Public Notice: Word | Acrobat 7/25/05 FCC Announces Joint Federal/State VOIP Enhanced 911 Enforcement Task Force. News Release: Word | Acrobat 05/19/05 Commission Requires Interconnected VoIP Providers to Provide Enhanced 911 Service. News Release: Word | Acrobat Order: Word | Acrobat Martin Statement: Word | Acrobat Abernathy Statement: Word | Acrobat Copps Statement: Word | Acrobat Adelstein Statement: Word | Acrobat 03/03/05 Madison River Communications, LLC Order and Consent Decree. Order: Word | Acrobat Consent Decree: Word | Acrobat Chairman Powell Commends Swift Action to Protect VoIP Services: Word | Acrobat 11/09/04 FCC Finds that VONAGE Not Subject to Patchwork of State Regulations Governing Telephone Companies. News Release: Word | Acrobat MO&O (11/12/04): Word | Acrobat Powell Statement: Word | Acrobat Abernathy Statement: Word | Acrobat Copps Statement: Word | Acrobat Adelstein Statement: Word | Acrobat   4/21/04 FCC Decision on Petition for Declaratory Ruling that AT&T's Phone-to-Phone IP Telephony Services are Exempt from Access Charges. Order: Word | Acrobat Powell Statement: Word | Acrobat Abernathy Statement: Word | Acrobat Copps Statement: Word | Acrobat Martin Statement: Word | Acrobat Adelstein Statement: Word | Acrobat 4/20/04 Agenda Announced for May 7, 2004 "Solutions Summit" on Disability Access Issues Associated with Internet-Protocol Based Communications Services. Public Notice: Word | Acrobat 4/16/04 VoIP Solutions Summit Pre-Registration Form Acrobat 3/10/04 FCC Moves to Allow More Opportunities for Consumers Through Voice Services Over The Internet. NPRM: Text | Acrobat News Release (2/12/04): Word | Acrobat Powell Statement: Text | Acrobat Abernathy Statement: Acrobat Copps Statement: Text | Acrobat Martin Statement: Text | Acrobat Adelstein Statement: Text | Acrobat 02/12/04 FCC to Hold Second Solutions Summit on IP-Enabled Services and Disability Access Issues. News Release: Word | Acrobat Powell Statement: Word | Acrobat Abernathy Statement: Word | Acrobat Copps Statement: Word | Acrobat Martin Statement: Word | Acrobat Adelstein Statement: Word | Acrobat 2/12/04 FCC Rules That Pulver.com's Free World Dialup Service Should Remain Free From Unnecessary Regulation. News Release: Word | Acrobat Order (2/19/04): Acrobat Powell Statement: Word | Acrobat Abernathy Statement: Word | Acrobat Copps Statement: Word | Acrobat Martin Statement: Word | Acrobat Adelstein Statement: Word | Acrobat 1/14/04 The Age of Personal Communications: Power to the People The National Press Club Washington DCWord | Acrobat 12/1/03 Letters from U.S. Senators on the VOIP forum.Senator George Allen, Senator John Ensign, Senator John McCain, Senator John E. Sununu, Senator Ron Wyden Bureau/Office:  Consumer and Governmental Affairs
Topics
  • Topic
  • Tf
  • Position
  • acrobat
  • 104
  • 16
  • word acrobat
  • 89
  • 16
  • word
  • 89
  • 16
  • statement
  • 67
  • 16
  • service
  • 63
  • 16
  • voip
  • 61
  • 16
  • statement word acrobat
  • 57
  • 16
  • statement word
  • 57
  • 16
  • fcc
  • 23
  • 16
  • voip service
  • 21
  • 16
  • phone
  • 21
  • 16
  • call
  • 20
  • 16
  • provider
  • 19
  • 16
  • acrobat copp statement
  • 15
  • 16
  • acrobat adelstein statement
  • 15
  • 16
  • acrobat copp
  • 15
  • 16
  • copp statement
  • 15
  • 16
  • acrobat adelstein
  • 15
  • 16
  • adelstein statement
  • 15
  • 16
  • copp
  • 15
  • 16
  • adelstein
  • 15
  • 16
  • news
  • 14
  • 16
  • internet
  • 14
  • 16
  • telephone
  • 14
  • 16
  • word acrobat copp
  • 13
  • 16
  • copp statement word
  • 13
  • 16
  • word acrobat adelstein
  • 13
  • 16
  • adelstein statement word
  • 13
  • 16
  • news release
  • 13
  • 16
  • acrobat martin
  • 13
  • 16
  • release
  • 13
  • 16
  • martin
  • 13
  • 16
  • word acrobat martin
  • 12
  • 16
  • acrobat martin statement
  • 12
  • 16
  • martin statement
  • 12
  • 16
  • voip provider
  • 11
  • 16
  • order
  • 11
  • 16
  • news release word
  • 10
  • 16
  • release word acrobat
  • 10
  • 16
  • martin statement word
  • 10
  • 16
  • release word
  • 10
  • 16
  • number
  • 9
  • 16
  • computer
  • 9
  • 16
  • traditional
  • 9
  • 16
  • order word acrobat
  • 8
  • 16
  • order word
  • 8
  • 16
  • consumer
  • 8
  • 16
  • broadband
  • 8
  • 16
  • 911
  • 8
  • 16
  • acrobat mcdowell statement
  • 7
  • 16
  • service provider
  • 7
  • 16
  • acrobat mcdowell
  • 7
  • 16
  • mcdowell statement
  • 7
  • 16
  • communication
  • 7
  • 16
  • enforcement
  • 7
  • 16
  • voice
  • 7
  • 16
  • regular
  • 7
  • 16
  • local
  • 7
  • 16
  • special
  • 7
  • 16
  • mcdowell
  • 7
  • 16
  • word acrobat mcdowell
  • 6
  • 16
  • mcdowell statement word
  • 6
  • 16
  • acrobat tate statement
  • 6
  • 16
  • acrobat abernathy statement
  • 6
  • 16
  • voip phone
  • 6
  • 16
  • service voip
  • 6
  • 16
  • acrobat tate
  • 6
  • 16
  • tate statement
  • 6
  • 16
  • statement acrobat
  • 6
  • 16
  • acrobat abernathy
  • 6
  • 16
  • abernathy statement
  • 6
  • 16
  • special voip phone
  • 5
  • 16
  • word acrobat tate
  • 5
  • 16
  • tate statement word
  • 5
  • 16
  • word acrobat abernathy
  • 5
  • 16
  • abernathy statement word
  • 5
  • 16
  • acrobat powell statement
  • 5
  • 16
  • long distance
  • 5
  • 16
  • special voip
  • 5
  • 16
  • acrobat powell
  • 5
  • 16
  • powell statement
  • 5
  • 16
  • text acrobat
  • 5
  • 16
  • service voip provider
  • 4
  • 16
  • public notice word
  • 4
  • 16
  • notice word acrobat
  • 4
  • 16
  • word acrobat powell
  • 4
  • 16
  • powell statement word
  • 4
  • 16
  • statement text acrobat
  • 4
  • 16
  • senator john
  • 4
  • 16
  • internet protocol
  • 4
  • 16
  • internet connection
  • 4
  • 16
  • service call
  • 4
  • 16
  • traditional phone
  • 4
  • 16
  • voip adapter
  • 4
  • 16
  • regular telephone
  • 4
  • 16
  • traditional telephone
  • 4
  • 16
  • provider offer
  • 4
  • 16
  • disability access
  • 4
  • 16
  • public notice
  • 4
  • 16
  • notice word
  • 4
  • 16
  • statement text
  • 4
  • 16
  • voice internet protocol
  • 3
  • 16
  • computer special voip
  • 3
  • 16
  • service traditional phone
  • 3
  • 16
  • traditional phone connected
  • 3
  • 16
  • connected voip adapter
  • 3
  • 16
  • voip service provider
  • 3
  • 16
  • service news release
  • 3
  • 16
  • acrobat news release
  • 3
  • 16
  • word acrobat order
  • 3
  • 16
  • fiscal year
  • 3
  • 16
  • voice internet
  • 3
  • 16
  • computer special
  • 3
  • 16
  • service traditional
  • 3
  • 16
  • phone connected
  • 3
  • 16
  • connected voip
  • 3
  • 16
  • high speed
  • 3
  • 16
  • telephone service
  • 3
  • 16
  • information voip
  • 3
  • 16
  • voip 911
  • 3
  • 16
  • service require
  • 3
  • 16
  • interconnected voip
  • 3
  • 16
  • service news
  • 3
  • 16
  • year 2007
  • 3
  • 16
  • acrobat news
  • 3
  • 16
  • acrobat order
  • 3
  • 16
  • solution summit
  • 3
  • 16
Result 17
TitleWhat is VoIP (voice over Internet Protocol)? Definition from SearchUnifiedCommunications
Urlhttps://www.techtarget.com/searchunifiedcommunications/definition/VoIP
DescriptionTake a deep dive into voice over IP to understand how the telephony technology works, as well as the pros and cons of migrating to VoIP
Date
Organic Position16
H1VoIP (voice over Internet Protocol)
H2
H3What is VoIP (voice over Internet Protocol)?
VoIP in unified communications
VoIP telephone equipment
How does VoIP work?
VoIP protocols and standards
Advantages and disadvantages of VoIP
History of VoIP
H2WithAnchors
BodyVoIP (voice over Internet Protocol) By Alexander S. Gillis, Technical Writer and Editor What is VoIP (voice over Internet Protocol)? VoIP (voice over Internet Protocol) is the transmission of voice and multimedia content over an internet connection. VoIP allows users to make voice calls from a computer, smartphone, other mobile devices, special VoIP phones and WebRTC-enabled browsers. VoIP is a technology useful for both consumers and businesses, as it typically includes other features that can't be found on common phone services. These features can include call recording, custom caller ID, or voicemail to e-mail. It is also helpful to organizations as a way to unify communications. The process works similarly to a regular phone, but VoIP uses an internet connection instead of a telephone company's wiring. VoIP is enabled by a group of technologies and methodologies used to deliver voice communications over the internet, including enterprise local area networks or wide area networks. A VoIP service will convert a user's voice from audio signals to digital data, then send that data through the internet. If another user is calling from a regular phone number, the signal is converted back to a telephone signal before it reaches that user. VoIP can also perform routing of incoming and outgoing calls through existing telephone networks. However, some VoIP services may only work over a computer or VoIP phone. VoIP in unified communications. VoIP consolidates communication technologies into one unified system -- meaning that VoIP can allow for a number of audio, video or text-based communication methods. This can be particularly useful for businesses, so teams don't have to work with multiple different applications to communicate with one another effectively. VoIP creates this network by allowing users to make calls and hold web conferences using devices like computers, smartphones or other mobile devices. Some common features might include: audio calls; video calls; voicemail; instant messaging; team chats; email; SMS texts; mobile and desktop apps; and mobile and local number portability (allows a subscriber to choose a new telephone carrier without needing a new number). VoIP telephone equipment. The two main types of VoIP telephones are hardware-based and software-based. A hardware-based VoIP phone looks like a traditional hard-wired or cordless telephone and includes similar features, such as a speaker or microphone, a touchpad and a caller ID display. VoIP phones can also provide voicemail, call conferencing and call transfer. Software-based IP phones, also known as softphones, are software clients installed on a computer or mobile device. The softphone user interface often looks like a telephone handset with a touchpad and caller ID display. A headset equipped with a microphone connects to the computer or mobile device to make calls. Users can also make calls via their computer or mobile device if they have a built-in microphone and speaker. How does VoIP work? VoIP services convert a user's voice from audio signals to digital data, in which that data is then sent to another user -- or group of users -- over Ethernet or Wi-Fi. To accomplish this, VoIP will use codecs. Codecs are either a hardware- or software-based process that compresses and decompresses large amounts of VoIP data. Voice quality may suffer when compression is used, but compression reduces bandwidth requirements. Equipment vendors will also use their own proprietary codecs. The process of sending data to other users includes encapsulating audio into data packets, transmitting the packets across an IP network and unencapsulating the packets back into audio at the other end of the connection. Within enterprise or private networks, quality of service (QoS) is typically used to prioritize voice traffic over non-latency-sensitive applications to ensure acceptable voice quality. Additional components of a typical VoIP system include the following: an IP PBX to manage user telephone numbers, devices, features and clients; gateways to connect networks and provide failover or local survivability in the event of a network outage; and session border controllers to provide security, call policy management and network connections. A VoIP system can also include location-tracking databases for E911 (enhanced 911) call routing and management platforms. This can collect call performance statistics for reactive and proactive voice-quality management. By eliminating circuit-switched networks for voice, VoIP reduces network infrastructure costs and enables providers to deliver voice services over Broadband and private networks. This should also enable enterprises to operate a single voice and data network. VoIP also piggybacks on the resiliency of IP-based networks by enabling fast failover, following outages and redundant communications between endpoints and networks. VoIP protocols and standards. VoIP endpoints typically use either International Telecommunication Union (ITU) standard codecs, or specifically developed codecs. They are as follows: 711 is the standard for transmitting uncompressed packets. 729 is the standard for compressed packets. Transmission Control Protocol (TCP) is used to break a message down into smaller packets. Meanwhile, the IP deals with the sending and delivery of the packets. The ITU T.38 protocol will send faxes over a VoIP or IP network in real time. VoIP typically uses this to support non-voice communications. The Real-Time Transport Protocol (RTP) is used once voice is encapsulated onto IP. The Secure Real-Time Transport Protocol (SRTP) acts as an encrypted variant of RTP. The Session Initiation Protocol (SIP) is a rigorous standard for signaling -- most often used to signal to create, maintain and end calls. The 248 protocol describes a Gateway Control Protocol, which defines a centralized architecture for creating multimedia applications. 323 is a signaling protocol that is used to control and manage calls. Extensible Messaging and Presence Protocol (XMPP) is a protocol for contact list maintenance, instant messaging and presence information. Skinny is another signaling protocol, which is proprietary to Cisco. Session Description Protocol (SDP) is used for initiation and announcement of sessions for multimedia communications, as well as WebSocket transports. Advantages and disadvantages of VoIP. Benefits of VoIP include: Lower cost. Price is lower than typical phone bills. Higher-quality sound. With uncompressed data, audio is less muffled or fuzzy. Access for remote workers. Good for employees who work remotely as they have a number of options to call into meetings or communicate to other teammates. Added features. These features include call recording, queues, custom caller ID or voicemail to email. Low international rates. When a landline makes an international call, it rents the wired circuit for the call to transfer overseas. VoIP doesn't require a wired line and uses the internet to make calls, which means it's treated like normal traffic and is less expensive. Despite these advantages, VoIP services may still come with some disadvantages. These disadvantages include: Not all these services may connect directly to emergency services. VoIP needs a high-speed internet connection. Services will not work during power outages. There may be a lack of directory assistance depending on the VoIP service. History of VoIP. The term VoIP historically referred to using internet protocols to connect private branch exchanges (PBXs), but is now used interchangeably with IP telephony. Paul Baran and other researchers worked on early developments of packet network designs. In 1973, Danny Cohen was the first to demonstrate a form of packet voice over an early ARPANET. One year later, the first successful real-time conversation was had over ARPANET. Three years after this, in 1977, UDP was added to carry real-time traffic. The 1990s. In 1991, the first VoIP application release was Speak Freely. A year later, InSoft launched a desktop conferencing product, Communique. Communique notably included options for video conferences. InSoft is often credited for creating the first generation of commercial VoIP services in the United States. In 1994, the FCC placed a requirement on VoIP providers to comply with the Communications Assistance for Law Enforcement Act of 1994. In addition, VoIP providers had to now contribute to the Universal Service Fund. In 1995, Intel, Microsoft and Radvision began to standardize VoIP systems. One year, later the ITU-T developed standards for transmission and signaling voice over IP networks, creating the H.323 standard. The G.729 standard is also introduced. SIP was standardized in 1999. The 2000s. In 2005, the FCC began imposing VoIP providers to provide 911 emergency call abilities. This began opening up the ability for VoIP to make and receive calls from traditional telephone networks. Emergency calls do work differently with VoIP however. For example, a provider with the right hardware infrastructure can find the approximate location of the calling device -- by using the IP address that is allocated to the network router. Another codec, the G.729.1 protocol, was unveiled in 2006. A year after this, VoIP device manufacturers began to expand in Asia. The SILK codec was introduced in 2009, notable for being used for voice calling in the application, Skype. In 2010, Apple introduced the LD-MDCT-based AAC-LD codec, which is notable for being used in FaceTime. This was last updated in October 2021 Continue Reading About VoIP (voice over Internet Protocol) . SIP trunking vs. VoIP: What's the difference? Enterprises need to meet E911 compliance for teleworkers 3 key unified communications security threats to watch for 4 SIP trunking benefits for cloud migration VoIP migration requires telephony network planning, security scrutiny Related Terms. jitter Jitter is any deviation in, or displacement of, the signal pulses in a high-frequency digital signal. See complete definition virtual call center A virtual call center -- or virtual contact center (VCC) -- is a call center in which the organization's representatives are ... See complete definition VoIP caller ID (voice over Internet Protocol caller identification) VoIP caller ID (voice over Internet Protocol caller identification) is a caller ID application for VoIP phones that works in the ... See complete definition Dig Deeper on VoIP and IP telephony. VoIP caller ID (voice over Internet Protocol caller identification) By: Paul Kirvan SIP trunking (Session Initiation Protocol trunking) By: Irwin Lazar PSTN (public switched telephone network) By: Linda Rosencrance Go back to the basics with a glossary of VoIP terms By: Micah Levine SearchNetworking Verizon 5G Ultra Wideband to roll out in 46 cities Verizon plans to roll out its faster 5G Ultra Wideband service to 46 US cities later this month. But contentious negotiations ... How IT can provide home Wi-Fi help for remote workers When assisting home-based workers with their Wi-Fi woes, be sure to assess their internet connectivity and even consider ... Explore 9 essential elements of network security Network security isn't a one-size-fits-all strategy. Dive into the various segments of network security, and learn how they ... SearchITChannel Cloud consumption models, services to see uptick in 2022 Cloud computing skills shortages are changing the way businesses think about in-house IT and making them more likely to tap ... Data analytics in IoT offers new opportunities for MSPs For MSPs monitoring thousands of IoT devices, parsing the associated data stream provides an outlet for growth. MSPs, however, ... Service providers predict 2022 technology trends Cloud developments, data analytics technology and nascent metaverses could keep consultants and integrators occupied for the ... Close
Topics
  • Topic
  • Tf
  • Position
  • voip
  • 58
  • 17
  • call
  • 26
  • 17
  • voice
  • 25
  • 17
  • network
  • 25
  • 17
  • protocol
  • 23
  • 17
  • service
  • 16
  • 17
  • internet
  • 15
  • 17
  • user
  • 12
  • 17
  • data
  • 12
  • 17
  • caller
  • 11
  • 17
  • telephone
  • 11
  • 17
  • ip
  • 11
  • 17
  • device
  • 10
  • 17
  • phone
  • 10
  • 17
  • include
  • 10
  • 17
  • communication
  • 10
  • 17
  • based
  • 9
  • 17
  • packet
  • 9
  • 17
  • internet protocol
  • 8
  • 17
  • caller id
  • 8
  • 17
  • id
  • 8
  • 17
  • work
  • 8
  • 17
  • codec
  • 8
  • 17
  • standard
  • 8
  • 17
  • voice internet protocol
  • 7
  • 17
  • voice internet
  • 7
  • 17
  • mobile
  • 7
  • 17
  • feature
  • 7
  • 17
  • audio
  • 7
  • 17
  • signal
  • 7
  • 17
  • voip service
  • 6
  • 17
  • number
  • 6
  • 17
  • application
  • 6
  • 17
  • security
  • 6
  • 17
  • provider
  • 6
  • 17
  • mobile device
  • 5
  • 17
  • voip phone
  • 5
  • 17
  • real time
  • 5
  • 17
  • voip voice internet
  • 4
  • 17
  • sip trunking
  • 4
  • 17
  • voip voice
  • 4
  • 17
  • network voip
  • 4
  • 17
  • computer mobile device
  • 3
  • 17
  • see complete definition
  • 3
  • 17
  • voip caller id
  • 3
  • 17
  • caller id voice
  • 3
  • 17
  • id voice internet
  • 3
  • 17
  • internet protocol caller
  • 3
  • 17
  • protocol caller identification
  • 3
  • 17
  • internet connection
  • 3
  • 17
  • user voice
  • 3
  • 17
  • feature include
  • 3
  • 17
  • telephone network
  • 3
  • 17
  • software based
  • 3
  • 17
  • computer mobile
  • 3
  • 17
  • wi fi
  • 3
  • 17
  • voice quality
  • 3
  • 17
  • ip network
  • 3
  • 17
  • voip system
  • 3
  • 17
  • voip provider
  • 3
  • 17
  • see complete
  • 3
  • 17
  • complete definition
  • 3
  • 17
  • call center
  • 3
  • 17
  • voip caller
  • 3
  • 17
  • id voice
  • 3
  • 17
  • protocol caller
  • 3
  • 17
  • caller identification
  • 3
  • 17
  • network security
  • 3
  • 17
Result 18
TitleHow does VoIP and Skype work? - Explain that Stuff
Urlhttps://www.explainthatstuff.com/how-voip-works.html
DescriptionAn easy-to-understand explanation of how telephone calls can be sent over the Internet using VoIP technologies such as Skype
Date31 May 2021
Organic Position17
H1VoIP
H2What is the Internet anyway?
What is VoIP?
How does VoIP work?
Types of VoIP
How does Skype™ work?
Advantages and disadvantages of VoIP
The growth of VoIP
Who invented VoIP?
What about VoLTE?
Find out more
Follow us
Rate this page
Save or share this page
Cite this page
More to explore on our website..
H3Contents
Call signalling
Call transmission
Interfacing with the telephone network
Original Skype
Modern Skype
On this website
On other websites
Books
Simple introductions
More advanced
Articles
Technical
H2WithAnchorsWhat is the Internet anyway?
What is VoIP?
How does VoIP work?
Types of VoIP
How does Skype™ work?
Advantages and disadvantages of VoIP
The growth of VoIP
Who invented VoIP?
What about VoLTE?
Find out more
Follow us
Rate this page
Save or share this page
Cite this page
More to explore on our website..
BodyVoIP by Chris Woodford. Last updated: May 31, 2021. Do you ever find yourself looking at your watch and thinking "This call's costing me a fortune." If you do, you're still stuck in the 20th century with telephone technology that's barely changed since the 19th! In the 21st century, there's no reason why we should be paying through the nose, by the minute, to use a telephone network when most of us now have access to a very credible alternative: the Internet. After all, if the Internet (which relies on large parts of the telephone network) can carry text, images, and video clips, it should be able to carry people's voices just as easily. That's the thinking behind VoIP (Voice Over Internet Protocol) which, simply stated, means using the Internet to make and receive telephone calls. How exactly does it work? What are the advantages and the drawbacks? Let's take a closer look! Artwork: VoIP means making telephone calls using your computer, with the sound of your voice converted to digital data that travels over the Internet using the Internet Protocol—in other words, in exactly the same way as Web pages, downloads, emails, or any other Internet data. Contents. What is the Internet anyway? What is VoIP? How does VoIP work? Types of VoIP How does Skype™ work? Advantages and disadvantages of VoIP The growth of VoIP Who invented VoIP? What about VoLTE? Find out more What is the Internet anyway? To lots of people, using the Net means looking at YouTube videos or buying books from Amazon.com—but both of these things are really about the World Wide Web, not the Internet. The Internet is the worldwide network that links virtually every modern computer on the planet, and it's made up of telephone lines, satellite links, fiber-optic cables, and old-fashioned copper wires. The World Wide Web (all those shopping sites, home videos, and so on that you browse from your computer) is just one of the things that uses the Internet; email is another. The Internet is designed so that it can send all kinds of information, in all kinds of different ways, between the various computers that it connects together, and without any kind of rewiring or redesign. (Technically, this is called the end-to-end principle.) That's why, in the mid-1990s, some clever technical people were able to figure out how to send telephone calls over the Net, much like any other kind of information. This was the birth of VoIP. What is VoIP? All the information that travels over the Net—from the latest music videos on YouTube to the confirmation email from Amazon that your book is on its way—is sent by a method called packet switching. Something like an email, which might be pages and pages of characters, isn't actually sent as one big chunk: when it leaves your computer, it's broken down into many small pieces called packets, each of which travels independently across the Internet (theoretically by a completely different route from other packets) before being reassembled into a copy of the original email when it arrives at its destination. It's a bit like sending a book through the post not as a big fat parcel but by putting every single page into a separate envelope, individually addressed and dispatched. It might sound odd to send things this way, but packet switching is actually an extremely quick and efficient way of handling the billions of emails, web pages, and everything else that has to zip back and forth across the Net every single day. (You can read more about how it works in our main article on how the Internet works.) All the computers connected to the Internet understand how to send and receive packets like this; thankfully, they all agree to work in exactly the same way using exactly the same system, which is known as the Internet Protocol or IP. (One of the key parts of the IP that you may be familiar with is that every computer can be "addressed" by quoting a unique number, known as its IP address, which is a bit like the computer equivalent of a telephone number or building address. Currently most computers have IP addresses made from four pairs of two digits separated by points, such as 12.34.56.78. Photo: Packet switching is how data travels over the Internet. It's a bit like moving house by breaking the building into individual bricks and putting each one in the mail! It sounds crazy, but it works extremely efficiently. The Internet has only one job to do: to keep packets moving back and forth. The computers, fiber-optic cables, and other systems that make up the Net don't know what packets they're moving or why—and they don't care. A packet might be a piece of a photo you took on holiday in Florida, or it could be part of an email telling someone they're fired. As long as the data you want to send is in the form of packets, and they're formatted in the correct way according to the IP, you can send absolutely anything over the Internet. Sponsored links How does VoIP work? How, then, do you send a telephone call over the Internet? There are really three separate problems to solve before you can do it: alerting someone that you want to call them, turning your voice into digital sound and sending it over the Net (and receiving replies in the opposite direction), and "interfacing with" (linking in to) the ordinary telephone network, if your call is going to a traditional landline telephone or cellphone (mobile phone). Let's look at each of these in turn. Call signalling. When you make a traditional telephone call to a friend, you lift the receiver and listen for the dial tone before punching in someone's number. What's happening here is that you're opening up an electric circuit between your home phone and the telephone exchange. When you dial the number, the exchange opens up a second circuit to the receiver's phone, causing their handset to ring. As soon as your friend lifts the receiver, there's a complete circuit open between your two phones and you can start to talk ("send and receive voice data", if you prefer). With VoIP, things are different. Internet telephony is much more like cellphone telephony, with people having unique telephone numbers that aren't permanently linked to one physical location: the person you're calling could be anywhere on the planet (and might not be in the same place two days running). So the first part of making a VoIP call involves your computer locating the receiver on the Internet, signalling their computer to receive a call, and, once that's done, the two computers agreeing the technical nitty-gritty of how they will actually exchange the data (just as fax machines and modems "handshake" at the start of a call). For VoIP to work effectively, every computer that uses it has to do these things exactly the same way—and that's why VoIP systems use carefully agreed international standards (known as protocols). The two protocols that cover signalling are technically known as H.323 and SIP (Session Initiation Protocol, sometimes also known as RFC 4168). Simply speaking, these protocols set up a communication route between two IP addresses (the sender's and the receiver's) across which the actual telephone call data can be sent and received. Call transmission. To send a basic telephone call over the Internet, you have to turn a speaker's voice into digital (numeric) form. That's relatively easy and the technology has been around for many years. (For example, when rock bands record CDs or MP3s, the noises they produce with their voices or instruments, which are analog sounds, are converted into numbers, which are digital signals, that can be stored or manipulated by computers. For more about the difference, see our main article on analog versus digital technology. This general process is called analog to digital conversion. When you listen to a CD or MP3, those numbers are converted back into sounds your ears can hear by digital to analog conversion.) The piece of software responsible for this process—converting audio sound into digital data and back again at the other end—is known as a CODEC (Coder-Decoder). The CODECs used for VoIP are designed to work optimally with sounds of frequencies from a few hundred hertz (Hz) up to perhaps 5000Hz or so (the frequency range of the human voice), although since 21st-century phone calls are just as likely to contain video (chat) data as voice sounds, VoIP systems often contain video CODECs as well as audio ones. Once a spoken voice has been turned into numbers, it's relatively easy to break it into packets and send it over the Internet to another computer, where it can be reassembled and turned back into the sound of a voice by exactly the reverse process. Again, the computers involved in sending and receiving the data have to work according to the same protocols (agreed methods). The data-sending protocol used in VoIP is called RTP (real-time protocol), and it's also the protocol that computers use for receiving streaming media (videos you watch as you download them, in real time, over the Internet). Interfacing with the telephone network. So far, we've seen that sending and receiving phone calls between two computers connected via the Internet is relatively simple; it's broadly the same as chatting online or exchanging emails, except that the data travelling back and forth is digitally encoded sound and travels in real-time. Making a telephone call from a computer to a traditional landline phone (or vice-versa) is more complex because it involves making a link from the Internet to the ordinary phone network (which is technically referred to as the PSTN or Public Switched Telephone Network). That complicates both aspects of VoIP that we discussed above. Call signalling is more complex, because the phone you're calling might be on either the PSTN or somewhere on the Internet—and it has to be located first. (One solution to this is to assign a special, nongeographical "area code" to VoIP numbers so they can be instantly identified and routed to the Internet.) Sending and receiving a phone call is also more complex because if you're calling from a VoIP phone to an ordinary landline handset, there's nothing at the receiving end to convert the digital data back into analog sound. So the data has to be converted before it reaches its destination. What makes phone calls like this work is an extra piece of equipment known as a gateway, which acts as a bridge between the Internet (on one hand) and the PSTN (on the other). You can think of a gateway as a kind of translator that converts telephone calls in IP-format into traditional signals that ordinary phones can understand (and vice versa). It's also involved in call signalling, so when you dial a landline from a VoIP phone, the gateway converts the call-signalling data into a format that the PSTN can understand (and rings the landline the old-fashioned way). Photo: A gateway allows VoIP Internet phones linked to computers and routers (left) to communicate with ordinary landline phones connected to the PSTN (right). Two landlines can communicate directly over the PSTN (yellow line), just as two VoIP phones can connect directly over the Internet (red line) in something like a Skype call. But if a landline wants to communicate with a VoIP phone (green line), it has to go via a gateway (blue box). Types of VoIP. Simply speaking, there are three different kinds of VoIP. The simplest are VoIP telephone handsets that look and work much like traditional telephones, except that instead of being wired to a telephone line, they're either directly connected to your computer (by something like a USB cable) or indirectly connected to it by a wireless (Wi-Fi) router. You'll find a slightly different kind of VoIP on cellphones (mobile phones). You make and receive mobile VoIP calls much the same as normal cellphone calls but, instead of calls being sent and received on a permanently open line, like a traditional cellphone call, they're broken into packets and sent back and forth—rather like a web page that you're browsing with something like a smart phone. In other words, they're using packet switching over the cellphone network. A third kind of VoIP is entirely computer based. When you call someone, the VoIP software running on your computer (known as a client) sets up a more or less direct connection (known as a peer-to-peer or P2P) connection with someone else's computer, across the Internet. You send and receive text messages, voice data, or webcam chat over this direct link. Apart from the initial logging on process, there is no intermediate computer managing the communication between the sender and receiver, which makes this relatively secure compared to other forms of telephone communication. Skype worked this way until a few years ago but now uses a much more centralized cloud-computing system. (Zoom also uses cloud-mediated connections, rather than peer-to-peer, for reasons it explains in this blog post.) How does Skype™ work? Skype was the original peer-to-peer VoIP software—indeed, the technical nitty-gritty that it uses is even known as the "Skype protocol." After Microsoft bought Skype in 2011, it slowly began the process of changing it over to a more centralized, client-server model, which is how it works today. "Original Skype" (as I'm going to refer to it from now on) was quite different. Original Skype. Photo: Skype is the best known (although by no means the only) VoIP system. You can call any user just by entering their Skype username. Or you can use the Skype pop-up keypad to make calls to any phone, anywhere in the world, using the ordinary telephone network (PSTN). "Original Skype" was a proprietary VoIP system using its own protocol based on peer-to-peer (P2P) networking; essentially, it worked by creating ad-hoc, direct communication between two computers on the Internet in a similar way to file-sharing systems such as KaZaa (developed by Niklas Zennström and Janus Friis—the same people who developed Skype). Apart from a logon server that grants access to the network, assigns unique usernames, and so on, "Original Skype" was completely decentralized and distributed: there was no centralized "Skype control system." At any given moment, there were something like 100 million "Original Skype" users logged on worldwide. When you signed on to "Original Skype," your computer became one node in a global network of equal peers. Each user ran a piece of software called a client that allowed them to send messages to other Skype users, make calls, send files, and play real-time games. Each of the clients became an active part of the network and, whether it was actively sending messages or not, helped the network as a whole to locate and route traffic to other users. Within the network, some of the users with highest bandwidth and best connectivity, known as supernodes, acted as traffic hubs. The network as a whole was made up of supernodes connected to one another (something like 50,000 of them), with each supernode linking to many ordinary nodes. Unlike other instant messaging programs (such as the Yahoo! and Microsoft Live Messengers and AOL's AIM), "Original Skype" was much more adept at communicating through firewalls by random selecting the ports it would use. As a consequence, it was much harder for system administrators to detect and block "Original Skype" than traffic between other Internet chat programs. "Original Skype" also used encrypted communication between peers, which also made it highly secure—and relatively hard for random eavesdroppers or law-enforcement agencies to monitor. Modern Skype. Microsoft's acquisition of Skype changed all this. First, around 2012, the company restructured Skype so it worked using a network of 10,000 supernodes entirely under its own control, apparently for security reasons, but prompting concerns about privacy. Later, Microsoft switched from the anarchic peer-to-peer model to a more centralized, cloud-based client-server model, completing the transition in around 2016. This prompted further fears of systematic privacy invasion and surveillance, although Skype's developers argued that the change had really been made to improve performance, particularly for mobile users. Advantages and disadvantages of VoIP. The biggest plus point of VoIP is call cost, which is typically either free or much less than making traditional calls over the PSTN. (That's a huge plus point for customers, but a huge drawback for the big telephone companies, who've been forced to regear their businesses to meet the threat from Internet telephony.) VoIP is easy and often immediate to set up, and generally requires no long-term contract (although you do need to set up an account of some kind to create a phone number or user name where people can call you). You can usually send any kind of data over VoIP, from text and images of your computer desktop to voice and webcam chat. Another big plus is that VoIP liberates you from a fixed, physical location; if you have a Skype username, for example, you can sign in with it and receive calls from anywhere in the world. Photo: You can make a VoIP call from anywhere you can connect to the Internet, whether or not there's a telephone network or cellphone mast nearby. That's why VoIP has proved a big hit with the military. Here, a soldier is making a VoIP call with a laptop linked to the Internet via a radar dish and satellite connection. Photo by Teddy Wade courtesy of US Army. The biggest drawback of VoIP is call quality, which is neither as good or as reliable as you'd get with a direct call between two landlines. Although the sound quality itself may be poorer (it varies considerably according to the CODECs that are used), this is not usually much of an issue since most people are used to the highly variable quality of cellphone calls. Since VoIP calls travel back and forth as streams of packets, network problems that lead to the total loss of packets cause a degradation in call quality and a loss of communication—though that's also a problem people are used to with cellphones and poor signals. A much bigger issue is call latency, where delays in sending data across the Internet (coupled with the time it takes for the CODECs to process them) result in a significant lag between the sender saying something and the receiver hearing it (similar to a really bad international telephone call), which can lead to people talking on top of one another. A related problem called jitter can make snippets of conversation arrive in irregular bursts, separated by silences (it happens because a certain number of digital packets have to arrive from the Internet and be assembled before they can be converted into audible sounds), and this can also be very confusing to the people involved in a conversation. The "geographical freedom" of VoIP can also be a drawback in an emergency, because if you make an emergency call from a VoIP phone the emergency services cannot automatically figure out where in the world the call has come from. By the same token, nuisance calls made over VoIP may be much harder to trace or block. The growth of VoIP. VoIP has grown enormously since it was first developed in the mid-1990s, especially with business customers. By 2013, the most popular VoIP service, Skype, claimed to have about 300 million active users (my own experience suggests around 50–100 million people may be logged in at any time); the current overall total is hard to establish, not least because some people have multiple Skype accounts (I must have over a half dozen for various purposes). In 2016, Skype reported massive growth in mobile-app use: "We've reached one billion Skype mobile downloads," and revealed that its hundreds of users had made "nearly two trillion minutes of video calls" since its video calling was released 10 years before. Even so, these vague figures (how many people downloaded twice on the same device or multiple times on different devices?) reveal very little about worldwide VoIP usage. That's not really surprising when you consider that this is a much more ad-hoc technology than traditional telephony, where there are actual, physical phone lines you can count. What can we glean about overall VoIP use worldwide? Here are a few statistics I've managed to pull together over the last few years: In July 2009, the International Telecommunication Union (ITU) reported that there were 34.6 million VoIP subscribers in Europe, with about a quarter of all fixed-line telephone subscribers using VoIP instead of the PSTN. Unfortunately, the ITU news and statistics blog tells us very little about current figures. A similar picture has emerged in Japan, where fast cellphone networks are widely available, and around a third of all telephone calls are now made by VoIP. In the United States, manufacturers such as 3Com report that something like a half of all new business telephones sold are VoIP models. In 2012, according to the New York Times, 42 million people were regularly using VoIP phones in the United States. Telephone companies offering only VoIP services are still much smaller than their PSTN rivals; one of the leading providers, Vonage, had 2.4 million registered customers as of June 2011, but in February 2017 was reporting "nearly 2 million customers worldwide" (it's uncertain whether these are directly comparable figures, but they came from the same sentence of the "About" page on their website at different times). Industry estimates suggest there were somewhere between 100 and 200 million VoIP subscribers worldwide by the end of 2015, although a mere six countries (the USA, China, Japan, South Korea, France, and Germany) represent about 80 percent of the market. A study by Future Market Insights forecast the global VOIP market would be worth $204.8 billion by 2020, comprising around 200 million subscribers. In the future, as broadband Internet and traditional telephony continue to converge, the strict split between the PSTN and the Internet is likely to disappear. It will be much more common to see, for example, Web pages with clickable links that make immediate VoIP calls to sales agents. Telephone calls are also likely to become more sophisticated, for example, with multi-way video calling over VoIP increasingly replacing two-way voice-only calling over the PSTN, and stereo VoIP calls replacing mono PSTN calls. Who invented VoIP? Here's a quick summary of some key moments in VoIP history. 1994: Two young Israeli computer scientists, Alon Cohen and Lior Haramaty, invent an audio transmitter-receiver that can send and receive voice data in real-time over the Internet. 1995: Cohen and Haramaty's company, VocalTec, develops the first Internet telephone software (also known as a VoIP client). 1996: The first versions of the VoIP call-signalling standards H.323 and SIP are published. 2002: The final version of SIP is published as international standard RFC 3261. 2003: Skype is launched. 2005: The commercial importance of VoIP becomes apparent when the eBay auction site buys Skype for $2.6 billion. 2005: Skype announces that 100 million people have downloaded its free VoIP software. 2007: Skype downloads reach 500 million. 2011: Microsoft buys Skype for $8.5 billion and its partner, Facebook, announces that it will incorporate Skype video calls into chats between Facebook friends. Skype announces 663 million registered users. 2013: Metro, the US-based cellphone network, launches the first commercial VoLTE service (essentially, VOIP for cellphones). 2014: WhatsApp, the popular mobile messenger, announces a new version incorporating VoIP voice calling. 2015: Global VoIP subscribers are predicted to reach 200 million. 2016: Skype announces that its mobile apps have been downloaded one billion times. 2016: Microsoft finishes moving Skype to a cloud-based (Azure) service. 2020: Zoom, a leading provider of video-conferencing software, posts extraordinary, quarterly growth rates of between 169 per cent and 367 per cent. Zoom and Skype now hold the lion's share of the video-conferencing market, with rivals like Google Hangouts, Cisco Webex™, and GoTo Meeting trailing in their wake. What about VoLTE? Artwork: The VoLTE icon indicator (top, red) and settings (bottom, blue) on a Samsung Android cellphone. Simply speaking, VoLTE is a kind of VOIP designed for cellphones, in which voice calls travel as Internet data, packet-switched over a mobile network. Where VOIP uses your home broadband line or work Internet connection VoLTE operates in an analogous way over a 4G or 5G mobile cellphone network. While VoLTE can offer greatly improved call quality compared to standard mobile calls ("I'm going through a tunnel... my signal is poor..."), and faster call connections, it's still less reliable than "desktop" VOIP, which uses a much more stable, fixed Internet connection. If you have a reasonably new phone, you'll probably find a little icon in the status area indicating that VoLTE is enabled—and an option in your settings to turn it on and off. For the time being, VoLTE is a handy option for mobile users, but the plan is for VoLTE/VOIP to be the default method of making mobile calls in the future. Sponsored links Find out more. On this website. You might like these other articles on our site covering similar topics: Cellphones (mobile phones) Internet Telephones Webcams On other websites. Comparison of VoIP software: This useful Wikipedia article lists and compares widely available VoIP software for PCs, Macs, cellphones, and servers. Books. Simple introductions. VoIP for Dummies by Timothy V. Kelly. John Wiley and Sons, 2011. A simple, hands-on guide to using VoIP with your computer, written in the classic, lighthearted Dummies style. Voice Over IP Fundamentals by Jonathan Davidson. Cisco Press, 2006. A short (96-page), concise, technical overview of VoIP, including how the PSTN works, basic VoIP technology, VoIP protocols such as H.323 and SIP, and gateway controls. More advanced. Packet Guide to Voice over IP: A system administrator's guide to VoIP technologies by Bruce Hartpence. O'Reilly, 2013. An advanced technical guide to VOIP—down to the level of packet switching. VoIP and Unified Communications: Internet Telephony and the Future Voice Network by William A. Flanagan. Wiley, 2012. A useful briefing aimed mainly at a business audience. Positioning VoIP as a disruptive technology, it explains the conceptual transition from circuit to packet switching, and describes how VoIP works with such things as voice, data and fax transmission. Switching to VoIP by Ted Wallingford. O'Reilly Media, Inc., 2005. A practical guide to how you can migrate a business telephone system to VoIP Articles. Moving Your Number to Google Voice by J. D. Biersdorfer. The New York Times, December 28, 2017. How can you use Google Voice to integrate your various telephone numbers and services? SkyDe Software Sends Hidden Messages in Skype Calls by Samuel K. Moore. IEEE Spectrum, January 15, 2013. How Skype can be used to send secret data using steganography (hiding messages in other data). Skype: How the online chat revolution changed lives by Katia Moskvitch. BBC News, 29 August 2013. How has Skype changed the world during its first 10 years? Skype: What kind of infrastructure changes has Microsoft made? by Mary Jo Foley. ZDNet, 1 May 2012. How Microsoft changed the way Skype worked. Microsoft Buys Skype for $8.5 Billion. Why, Exactly? by Peter Bright. Wired News, 10 May 2011. Analysis of Microsoft's decision to acquire Skype. VoIP in Europe: Its bite is worse than its bark: ITU News, 20 July 2009. Compares the VoIP market to the PSTN market in Europe. [Archived via the Wayback Machine.] Skype use may make eavesdropping passe by Peter Svensson (Associated Press), USA Today, 16 February 2006. Explores the difficulty of monitoring illicit communications over Skype. Technical. US Patent 5,825,771: Audio transceiver by Alon Cohen and Lior Haramaty, Vocaltec Ltd, October 20, 1998. The original VoIP patent, which describes how real-time audio can be sent across the Internet. H.323: Official specification from ITU-T. There's also a Wikipedia overview of H.323. SIP: Official 2005 specification (RFC-4168) from the Internet Engineering Task Force (IETF). There's also a Wikipedia overview of SIP. Please do NOT copy our articles onto blogs and other websites Articles from this website are registered at the US Copyright Office. Copying or otherwise using registered works without permission, removing this or other copyright notices, and/or infringing related rights could make you liable to severe civil or criminal penalties. Text copyright © Chris Woodford 2012, 2021. All rights reserved. Full copyright notice and terms of use. Skype is a trademark of Skype Technologies SA. Follow us. Rate this page. Please rate or give feedback on this page and I will make a donation to WaterAid. Save or share this page. Press CTRL + D to bookmark this page for later or tell your friends about it with: Cite this page. Woodford, Chris. (2012/2021) VoIP. Retrieved from https://www.explainthatstuff.com/how-voip-works.html. [Accessed (Insert date here)] More to explore on our website... Communications Computers Electricity & electronics Energy Engineering Environment Gadgets Home life Materials Science Tools & instruments Transportation Home A-Z index Send feedback Random article Timeline Teaching guide About us Privacy & cookies ↑ Back to top
Topics
  • Topic
  • Tf
  • Position
  • voip
  • 99
  • 18
  • call
  • 63
  • 18
  • internet
  • 53
  • 18
  • skype
  • 53
  • 18
  • telephone
  • 37
  • 18
  • computer
  • 32
  • 18
  • voice
  • 29
  • 18
  • phone
  • 27
  • 18
  • network
  • 23
  • 18
  • data
  • 23
  • 18
  • peer
  • 22
  • 18
  • packet
  • 20
  • 18
  • work
  • 19
  • 18
  • send
  • 18
  • 18
  • cellphone
  • 17
  • 18
  • person
  • 16
  • 18
  • protocol
  • 15
  • 18
  • pstn
  • 15
  • 18
  • video
  • 14
  • 18
  • million
  • 14
  • 18
  • sound
  • 14
  • 18
  • page
  • 14
  • 18
  • mobile
  • 14
  • 18
  • time
  • 14
  • 18
  • number
  • 13
  • 18
  • telephone call
  • 12
  • 18
  • kind
  • 12
  • 18
  • original
  • 12
  • 18
  • system
  • 12
  • 18
  • user
  • 12
  • 18
  • voip call
  • 10
  • 18
  • microsoft
  • 10
  • 18
  • original skype
  • 9
  • 18
  • telephone network
  • 7
  • 18
  • voip software
  • 6
  • 18
  • packet switching
  • 6
  • 18
  • real time
  • 6
  • 18
  • voip phone
  • 6
  • 18
  • peer peer
  • 5
  • 18
  • guide voip
  • 5
  • 18
  • web page
  • 5
  • 18
  • voip system
  • 5
  • 18
  • call signalling
  • 5
  • 18
  • internet protocol
  • 4
  • 18
  • call computer
  • 4
  • 18
  • voip work
  • 4
  • 18
  • send receive
  • 4
  • 18
  • voice data
  • 4
  • 18
  • call voip
  • 4
  • 18
  • h323 sip
  • 4
  • 18
  • phone call
  • 4
  • 18
  • kind voip
  • 4
  • 18
  • cellphone network
  • 4
  • 18
  • cellphone mobile phone
  • 3
  • 18
  • internet internet
  • 3
  • 18
  • digital data
  • 3
  • 18
  • travel internet
  • 3
  • 18
  • voip voip
  • 3
  • 18
  • end
  • 3
  • 18
  • ip address
  • 3
  • 18
  • telephone number
  • 3
  • 18
  • cellphone mobile
  • 3
  • 18
  • mobile phone
  • 3
  • 18
  • internet telephony
  • 3
  • 18
  • youre calling
  • 3
  • 18
  • simply speaking
  • 3
  • 18
  • sender receiver
  • 3
  • 18
  • sending receiving
  • 3
  • 18
  • cellphone call
  • 3
  • 18
  • skype worked
  • 3
  • 18
  • 100 million
  • 3
  • 18
  • internet telephone
  • 3
  • 18
  • call quality
  • 3
  • 18
  • million person
  • 3
  • 18
  • voip subscriber
  • 3
  • 18
  • 200 million
  • 3
  • 18
  • buy skype
  • 3
  • 18
  • skype announce
  • 3
  • 18
Result 19
TitleWhat Is a VoIP Phone and How Does It Work?
Urlhttps://www.onsip.com/voip-resources/voip-fundamentals/how-do-voip-phones-work
DescriptionLearn about the key differences that distinguish VoIP phones from other desk phones
Date
Organic Position18
H1What Is a VoIP Phone and How Does It Work?
H2Registration Rewired: VoIP Phone Systems Don't Need Expensive Copper Wire
VoIP Phones Look Just Like Regular Phones
One VoIP Phone Number, Multiple VoIP Phone "Lines"
VoIP vs Regular Phones: Similarities and Differences
H3Related Articles
H2WithAnchorsRegistration Rewired: VoIP Phone Systems Don't Need Expensive Copper Wire
VoIP Phones Look Just Like Regular Phones
One VoIP Phone Number, Multiple VoIP Phone "Lines"
VoIP vs Regular Phones: Similarities and Differences
BodyWhat Is a VoIP Phone and How Does It Work? by Kevin Bartley Learn about the key differences that distinguish VoIP phones from other desk phones. The average VoIP phone isn't that much different from the analog phone you currently have at your desk. VoIP phones look the same, and often have the same features, as the landline desk phones you're probably familiar with. There are, however, some key differences that distinguish VoIP phones from other desk phones. This blog will give you a quick overview of how a VoIP phone works and how to use one. (Note: Softphones and webphones like OnSIP's mobile app and desktop app are always VoIP phone options, but for the purposes of this article, we will focus on VoIP desk phones.) Registration Rewired: VoIP Phone Systems Don't Need Expensive Copper Wire. VoIP phones make and receive calls via the Internet. This means that they can use your office's Internet connection to connect to the telephone network. In other words, if your office is already wired for Ethernet, you do not need to invest in additional copper wiring to use your business phones. In order to make phone calls, you will first have to register your VoIP phone to your account. This is the process of connecting your phone to your service provider so that they can communicate with each other. Some VoIP providers support IP phone booting for certain VoIP phones, which speeds up the phone registration process using a boot server. The whole process of registering a phone will take you, or your IT staff, less than 30 minutes. Plus, there's no need to call the local phone company. Phones are active as soon as they're registered. No red tape. VoIP Phones Look Just Like Regular Phones. Outwardly, you might not even tell the difference between a VoIP phone and another business desk phone. VoIP phones tend to have handsets, receivers, speaker locations, and button placements that make them physically indistinguishable from the business phones you currently employ. VoIP phones use the same keypad as landline phones. The keypad comes with nine numbers, zero, and corresponding letters that enable alphanumeric input. If you've ever used a phone before, you've seen this keypad. VoIP phones generally have dedicated buttons for redial, transfer, conference, hold, mute, voicemail, and speaker phone. These buttons are set along the side of the number pad. VoIP phones and other business phones use these features almost universally. That said, VoIP phones are capable of HD voice, while other business phones are not. HD Voice offers at least twice the audio range of landline phone service. The spread for landline voice quality is 3.4 kHz (3400 Hz), but the spread for HD voice is 7 kHz (7000 Hz). In other words, the quality of your calls will be much higher using two VoIP phones than two traditional phones. Many VoIP phones also support Power over Ethernet (PoE), which allows you to power the phone through a PoE switch instead of a power adapter. This reduces clutter on your desk and simplifies inventory management. It can also save you money, as power adapters are often sold separately from the phones. One VoIP Phone Number, Multiple VoIP Phone "Lines". VoIP phones handle calls differently than other business phones. Above, the buttons in the yellow rectangle are the toggle buttons. VoIP phones allow you to pick between current, incoming, and held calls using the toggle buttons. These buttons rarely appear on landline phones. On landline phones, each "line" corresponds to a phone number. Landline phones can juggle multiple calls among corresponding copper lines, and you switch between these calls with the line buttons (in the green rectangle above) on the phone. If you have five lines for your business, that means your phone can take calls from five different phone numbers. VoIP phones, on the other hand, do not have "lines" in the traditional sense. Instead of being tied to a phone number, each 'line' on a VoIP phone is tied to a SIP address, or user account. Depending on your phone model, your phone may be able to handle multiple user accounts simultaneously. This means you can take calls from multiple accounts and different phone numbers on your VoIP phone. VoIP vs Regular Phones: Similarities and Differences. As you can see, VoIP phones and landline phones differ in how they are connected to the telephone network, how they operate, and how they handle calls. To recap, here are the main differences: VoIP phones use the Internet to connect to the phone network, and need to be registered online to a service provider. Other business phones require dedicated copper wiring separate from an Ethernet connection. VoIP phones are tied to user accounts, not phone numbers. VoIP phones have "toggle buttons" that allow you to switch between simultaneous calls on a given account. VoIP phones are capable of HD voice, which has twice the audio range of traditional landline calls. Power over Ethernet (PoE) allows some VoIP phones to receive power from a PoE switch instead of a traditional power adapter. But there are also plenty of similarities that VoIP phones share with other desk phones: VoIP phones use the same keypad as other desk phones. Like other office phones, VoIP phones have dedicated buttons for features such as call hold, call transfer, and caller ID. VoIP phones are physically similar in design to other business telephones. The basic deployment of handsets, receivers, speakers, and other structural items are the same for VoIP and landline phones. The short of it all is this: If you've ever used an office phone before, you won't have much trouble adjusting to a VoIP phone. Switching to VoIP phones won't require you to completely re-learn the way you take and make calls. Learn more about VoIP Fundamentals Related Articles. Why You Should Be Using Softphones Instead of Desk Phones at Your Business How Caller ID Works: Common Questions and Answers Learn more about VoIP Fundamentals ©2004 - 2020 Intrado. All Rights Reserved. Legal & Privacy | Diversity | Tariffs | Blog & Corporate News | Investor News | Contact
Topics
  • Topic
  • Tf
  • Position
  • phone
  • 87
  • 19
  • voip
  • 45
  • 19
  • voip phone
  • 39
  • 19
  • call
  • 16
  • 19
  • desk
  • 10
  • 19
  • landline
  • 10
  • 19
  • business
  • 10
  • 19
  • button
  • 10
  • 19
  • desk phone
  • 8
  • 19
  • number
  • 8
  • 19
  • landline phone
  • 7
  • 19
  • power
  • 7
  • 19
  • line
  • 7
  • 19
  • business phone
  • 6
  • 19
  • phone voip
  • 6
  • 19
  • phone number
  • 6
  • 19
  • voice
  • 6
  • 19
  • account
  • 6
  • 19
  • phone voip phone
  • 5
  • 19
  • hd voice
  • 5
  • 19
  • learn
  • 5
  • 19
  • difference
  • 5
  • 19
  • copper
  • 4
  • 19
  • office
  • 4
  • 19
  • ethernet
  • 4
  • 19
  • keypad
  • 4
  • 19
  • hd
  • 4
  • 19
  • traditional
  • 4
  • 19
  • poe
  • 4
  • 19
  • switch
  • 4
  • 19
  • multiple
  • 4
  • 19
  • difference voip phone
  • 3
  • 19
  • phone number voip
  • 3
  • 19
  • number voip phone
  • 3
  • 19
  • phone desk
  • 3
  • 19
  • difference voip
  • 3
  • 19
  • phone business
  • 3
  • 19
  • phone keypad
  • 3
  • 19
  • power adapter
  • 3
  • 19
  • phone line
  • 3
  • 19
  • toggle button
  • 3
  • 19
  • number voip
  • 3
  • 19
  • user account
  • 3
  • 19
  • youve
  • 3
  • 19
  • dedicated
  • 3
  • 19
  • adapter
  • 3
  • 19
  • handle
  • 3
  • 19
  • toggle
  • 3
  • 19
  • tied
  • 3
  • 19
  • user
  • 3
  • 19
Result 20
TitleWhat is VoIP and How Does it Work? | Plum Voice
Urlhttps://www.plumvoice.com/resources/blog/what-is-voip-how-it-works/
DescriptionDiscover what VoIP is, what goes into it, how it works, and how it differs from the Public Switched Telephone Network (PSTN)
Date
Organic Position19
H1What is VoIP and How does it Work?
H2PSTN vs. VoIP
What Is VoIP?
System Structure, or What Components Make up VoIP?
How does a VoIP call work?
Are VoIP calls free?
Why does VoIP cost less?
VoIP Advantages/Disadvantages
H3IP Devices
Media Gateways
Softswitches
IP PBX
H2WithAnchorsPSTN vs. VoIP
What Is VoIP?
System Structure, or What Components Make up VoIP?
How does a VoIP call work?
Are VoIP calls free?
Why does VoIP cost less?
VoIP Advantages/Disadvantages
BodyWhat is VoIP and How does it Work?By Jason Myers Share via: Facebook Twitter LinkedIn Email Part of our Back to the Basics Series. See also: PSTN, SIP Trunking, and Telephony. It turns out there is more than one way to skin a cat. There’s no need to call the SPCA. No one is actually skinning cats here. Not too long ago there weren’t a whole lot of options for making phone calls. That has all changed today. If you’re wondering what Voice over Internet Protocol (VoIP) telephony is, how it differs from the public switched telephone network (PSTN), what pieces make VoIP work, and what some of the advantages of VoIP are then put your feet up and read on. PSTN vs. VoIP. VoIP provides an alternative method for making phone calls than the PSTN. The crucial distinction between how these differing systems accomplish the task of transmitting information is in the type of switching employed. The PSTN uses circuit-switching technology. In other words, the PSTN opens up a direct connection between two subscriber lines that allows the system to send and receive information from each party in real time. A new connection is established with every phone call made and is closed when the phone is hung up. VoIP, however, uses packet-switching technology. The nitty gritty of how this process works is addressed below, but at a high level, the voice audio is digitized and broken up into little pieces called packets that are sent over the internet and follow the path(s) of least resistance to the other end. Once the packets reach their destination they are reassembled in the correct order and played back as audio. What Is VoIP? VoIP is a term that gets bandied about quite frequently, but such liberal use of the term has distorted its meaning. Like when you studied for the SAT and the verbal section focused on fine shades of difference between words, so too is the case with Internet Protocol Telephony (IPT). Really, IPT is an umbrella term that includes both Internet telephony and VoIP. The second edition of Telecommunications Essentials by Lillian Goleniewski provides definitions for each of these: IPT, broadly speaking, is the transmission of voice, fax, and related services over packet-switched IP-based networks. Internet Telephony is a form of IPT where the principal transmission network is the public Internet. VoIP is another form of IPT in which the principal transmission network or networks are private, managed IP-based networks. System Structure, or What Components Make up VoIP? Going down the VoIP rabbit hole means that things can get complicated things quickly. The VoIP network is actually modeled on the PSTN network, but several different pieces of hardware and software exist to make the packet-switching possible. IP Devices. These constitute the actual handsets, or similar, used to make a phone call. Legacy phones can connect to a VoIP network with an adapter. Other calling options include an IP phones look like regular phones, but they connect to the network using an Ethernet jack rather than a telephone jack. Computers that have the right software and hardware accessories (microphone, speakers, soundcard, headset, etc.) can also be used to make VoIP phone calls. Media Gateways. “Gateways provide seamless interoperability between circuit-switching and packet-switching network domains.” In other words, the media gateway connects the IP network to the PSTN and allows those two networks to talk to each other. Gateways also handle IP signaling functions and support Local Exchange and Toll switches on the PSTN. On top of all that, gateways can handle a wide variety of traffic types: data, voice, fax, multi-media, etc. Softswitches. The function of the softswitch is to “control the voice or data traffic path by signaling between media gateways that transport the traffic.” Softswitches use established protocols and specifications to ensure “that a call’s or connection’s underlying signaling information gets communicated between gateways.” This information includes things like caller ID, billing info, and other call triggers. Whereas a media gateway is an actual piece of hardware, a softswitch is software, and can be incorporated into a media gateway. IP PBX. IP PBXs can do everything that traditional PBXs can do, and a whole lot more. An IP PBX allows companies to leverage its managed intranet for voice and data applications. These can run the gamut from conferencing, to unified messaging, to multimedia, to collaborative applications, and more. IP PBXs can be physical hardware or software, and, as a result, businesses can leverage hosted IP PBXs for their needs. How does a VoIP call work? Well that depends on whether the called party is on an analog phone or another IP device. There are many different VoIP providers that facilitate VoIP calls. If you’re calling another IP device the call doesn’t need to connect to the PSTN. A caller dials the number and the call is passed from the device to a router. The router passes the call to the internet where it reaches one of the VoIP provider’s servers. From there the call gets passed along local internet lines on the other end to the recipient’s router and then to their IP device. The process for calling an analog phone is exactly the same except with one altered step. After the call leaves provider’s servers, it goes through a media gateway that translates everything from digital to analog and passes the call to the local PSTN. The call is then carried along the local PSTN as an analog signal to the correct subscriber line. VoIP has useful applications for everyone from individual subscribers to large enterprises. The future is bright for VoIP as the number of applications and its technological capabilities continue to increase. Session Initiation Protocol (SIP) has emerged as a technology that complements VoIP quite well. Stay tuned for more information on SIP. Are VoIP calls free? Now that you know, in broad strokes, how VoIP works, it’s worth re-visiting the distinction between VoIP and Internet telephony. The conflation of these two types of IPT has created a belief that VoIP is free. Well that couldn’t be further from the truth. Remember, VoIP relies on private, managed networks. This means that a company leases internet lines directly from a bandwidth provider, which results in better quality of service (Note: an intranet is another type of private network). There are plenty of different VoIP companies, but one that many people are likely familiar with is Vonage. While these providers may offer less expensive options than a traditional phone company, their services certainly aren’t free. On the other hand, internet telephony operates over the public internet. This is the province of “over-the-top” (OTT) services like Skype, Google Voice, and Apple’s Facetime. OTT refers to any service that is delivered using your Internet Service Provider’s (ISP) network, but isn’t provided directly by the ISP. For example, On-Demand movies that you access through your cable box are not OTT, but Netflix and Skype are. You may not pay directly to make calls with Skype or Facetime, but because those services work on the public internet they are more susceptible to lag, dropouts, and other errors. Why does VoIP cost less? The short explanation is because VoIP uses less data. By way of comparison, a circuit-switched opens a direct connection between two lines and eats up data for the entire duration of a call. Packet-switching doesn’t need a direct connection, instead utilizing any number of routes to deliver the call information. When someone speaks, data is sent, but periods of silence don’t generate data like they do on the PSTN. Think of this this way. Back in the day, before playlists, iTunes, and Spotify, folks recorded songs off the radio onto cassette tapes. If you had a sixty-minute tape you could just press record and let the tape run in the hope that the song you wanted to hear came on in that thirty-minute window (remember there’s a Side A and a Side B), but this could waste a lot of tape. The other option was to wait until the song came on and scramble to hit the record button in time. This way you only got the song you wanted and had room to record many more songs too. VoIP works like option two, except that you don’t have to worry about the rush to hit record. VoIP Advantages/Disadvantages. There are plenty of advantages that go hand-in-hand with VoIP. Efficiency and cost savings are attractive in their own right. The ability to develop unified communications solutions that incorporate telephony also makes VoIP an extremely useful technology. For example, a company can integrate internet-dependent services, including voice, fax, email, instant messaging, and other real-time or data services. Having this application flexibility is a major benefit of VoIP. Call quality persists as one area where VoIP lags behind the PSTN. The PSTN set the standard for call quality, and doesn’t suffer from latency issues because the connection between the lines is constant. In other words, everything happens in real time. With VoIP data is sent in bursts. Only when someone talks and audio gets packetized does it get passed between devices. This means that there is greater potential for latency or dropouts if packets get lost or if there are hiccups in the re-assembly process. Share via: Facebook Twitter LinkedIn Email Copy link CopyCopied Powered by Social Snap
Topics
  • Topic
  • Tf
  • Position
  • voip
  • 38
  • 20
  • call
  • 26
  • 20
  • network
  • 16
  • 20
  • pstn
  • 15
  • 20
  • internet
  • 15
  • 20
  • ip
  • 14
  • 20
  • phone
  • 12
  • 20
  • gateway
  • 10
  • 20
  • connection
  • 9
  • 20
  • provider
  • 9
  • 20
  • service
  • 9
  • 20
  • data
  • 9
  • 20
  • telephony
  • 8
  • 20
  • voice
  • 8
  • 20
  • packet
  • 8
  • 20
  • switching
  • 7
  • 20
  • media
  • 7
  • 20
  • media gateway
  • 6
  • 20
  • work
  • 6
  • 20
  • information
  • 6
  • 20
  • line
  • 6
  • 20
  • ipt
  • 6
  • 20
  • device
  • 6
  • 20
  • pbx
  • 6
  • 20
  • phone call
  • 5
  • 20
  • ip pbx
  • 5
  • 20
  • option
  • 5
  • 20
  • company
  • 5
  • 20
  • application
  • 5
  • 20
  • song
  • 5
  • 20
  • packet switching
  • 4
  • 20
  • internet telephony
  • 4
  • 20
  • ip device
  • 4
  • 20
  • voip call
  • 4
  • 20
  • analog
  • 4
  • 20
  • tape
  • 4
  • 20
  • record
  • 4
  • 20
  • voip work
  • 3
  • 20
  • voip voip
  • 3
  • 20
  • direct connection
  • 3
  • 20
  • real time
  • 3
  • 20
  • voice fax
  • 3
  • 20
  • public internet
  • 3
  • 20
Result 21
TitleVoice over IP - Wikipedia
Urlhttps://en.wikipedia.org/wiki/Voice_over_IP
Description
Date
Organic Position20
H1Voice over IP
H2Contents
Overview[edit]
Pronunciation[edit]
Protocols[edit]
Adoption[edit]
Delivery Mechanisms[edit]
Quality of service[edit]
Performance metrics[edit]
PSTN integration[edit]
Fax support[edit]
Power requirements[edit]
Security[edit]
Caller ID[edit]
Hearing aid compatibility[edit]
Operational cost[edit]
Regulatory and legal issues[edit]
History[edit]
See also[edit]
Notes[edit]
References[edit]
External links[edit]
Navigation menu
H3Consumer market[edit]
PSTN and mobile network providers[edit]
Corporate use[edit]
Hosted VoIP Systems[edit]
Private VoIP Systems[edit]
DSL and ATM[edit]
Layer 2[edit]
Number portability[edit]
Emergency calls[edit]
Canada[edit]
European Union[edit]
Arab states of the GCC[edit]
India[edit]
South Korea[edit]
United States[edit]
Milestones[edit]
Search
H2WithAnchorsContents
Overview[edit]
Pronunciation[edit]
Protocols[edit]
Adoption[edit]
Delivery Mechanisms[edit]
Quality of service[edit]
Performance metrics[edit]
PSTN integration[edit]
Fax support[edit]
Power requirements[edit]
Security[edit]
Caller ID[edit]
Hearing aid compatibility[edit]
Operational cost[edit]
Regulatory and legal issues[edit]
History[edit]
See also[edit]
Notes[edit]
References[edit]
External links[edit]
Navigation menu
BodyVoice over IP From Wikipedia, the free encyclopedia Jump to navigation Jump to search Methods of delivering voice communications and multimedia over IP networks Voice over Internet Protocol (VoIP), also called IP telephony, is a method and group of technologies for the delivery of voice communications and multimedia sessions over Internet Protocol (IP) networks, such as the Internet. The terms Internet telephony, broadband telephony, and broadband phone service specifically refer to the provisioning of communications services (voice, fax, SMS, voice-messaging) over the Internet, rather than via the public switched telephone network (PSTN), also known as plain old telephone service (POTS). Contents. 1 Overview 2 Pronunciation 3 Protocols 4 Adoption 4.1 Consumer market 4.2 PSTN and mobile network providers 4.3 Corporate use 5 Delivery Mechanisms 5.1 Hosted VoIP Systems 5.2 Private VoIP Systems 6 Quality of service 6.1 DSL and ATM 6.2 Layer 2 7 Performance metrics 8 PSTN integration 8.1 Number portability 8.2 Emergency calls 9 Fax support 10 Power requirements 11 Security 12 Caller ID 13 Hearing aid compatibility 14 Operational cost 15 Regulatory and legal issues 15.1 Canada 15.2 European Union 15.3 Arab states of the GCC 15.3.1 Oman 15.3.2 Saudi Arabia 15.3.3 United Arab Emirates 15.4 India 15.5 South Korea 15.6 United States 16 History 16.1 Milestones 17 See also 18 Notes 19 References 20 External links Overview[edit]. The steps and principles involved in originating VoIP telephone calls are similar to traditional digital telephony and involve signaling, channel setup, digitization of the analog voice signals, and encoding. Instead of being transmitted over a circuit-switched network, the digital information is packetized and transmission occurs as IP packets over a packet-switched network. They transport media streams using special media delivery protocols that encode audio and video with audio codecs and video codecs. Various codecs exist that optimize the media stream based on application requirements and network bandwidth; some implementations rely on narrowband and compressed speech, while others support high-fidelity stereo codecs. The most widely used speech coding standards in VoIP are based on the linear predictive coding (LPC) and modified discrete cosine transform (MDCT) compression methods. Popular codecs include the MDCT-based AAC-LD (used in FaceTime), the LPC/MDCT-based Opus (used in WhatsApp), the LPC-based SILK (used in Skype), μ-law and A-law versions of G.711, G.722, and an open source voice codec known as iLBC, a codec that uses only 8 kbit/s each way called G.729. Early providers of voice-over-IP services used business models and offered technical solutions that mirrored the architecture of the legacy telephone network. Second-generation providers, such as Skype, built closed networks for private user bases, offering the benefit of free calls and convenience while potentially charging for access to other communication networks, such as the PSTN. This limited the freedom of users to mix-and-match third-party hardware and software. Third-generation providers, such as Google Talk, adopted the concept of federated VoIP.[1] These solutions typically allow dynamic interconnection between users in any two domains of the Internet, when a user wishes to place a call. In addition to VoIP phones, VoIP is also available on many personal computers and other Internet access devices. Calls and SMS text messages may be sent via Wi-Fi or the carrier's mobile data network.[2] VoIP provides a framework for consolidation of all modern communications technologies using a single unified communications system. Pronunciation[edit]. VoIP is variously pronounced as an initialism, V-O-I-P, or as an acronym, /vɔɪp/ (VOYP).[3] Full words, voice over Internet Protocol, or voice over IP, are sometimes used. Protocols[edit]. Voice over IP has been implemented with proprietary protocols and protocols based on open standards in applications such as VoIP phones, mobile applications, and web-based communications. A variety of functions are needed to implement VoIP communication. Some protocols perform multiple functions, while others perform only a few and must be used in concert. These functions include: Network and transport – Creating reliable transmission over unreliable protocols, which may involve acknowledging receipt of data and retransmitting data that wasn't received. Session management – Creating and managing a session (sometimes glossed as simply a "call"), which is a connection between two or more peers that provides a context for further communication. Signaling – Performing registration (advertising one's presence and contact information) and discovery (locating someone and obtaining their contact information), dialing (including reporting call progress), negotiating capabilities, and call control (such as hold, mute, transfer/forwarding, dialing DTMF keys during a call [e.g. to interact with an automated attendant or IVR], etc.). Media description – Determining what type of media to send (audio, video, etc.), how to encode/decode it, and how to send/receive it (IP addresses, ports, etc.). Media – Transferring the actual media in the call, such as audio, video, text messages, files, etc. Quality of service – Providing out-of-band content or feedback about the media such as synchronization, statistics, etc. Security – Implementing access control, verifying the identity of other participants (computers or people), and encrypting data to protect the privacy and integrity of the media contents and/or the control messages. VoIP protocols include: Session Initiation Protocol (SIP),[4] connection management protocol developed by the IETF H.323, one of the first VoIP call signaling and control protocols that found widespread implementation.[5] Since the development of newer, less complex protocols such as MGCP and SIP, H.323 deployments are increasingly limited to carrying existing long-haul network traffic.[citation needed] Media Gateway Control Protocol (MGCP), connection management for media gateways H.248, control protocol for media gateways across a converged internetwork consisting of the traditional PSTN and modern packet networks Real-time Transport Protocol (RTP), transport protocol for real-time audio and video data Real-time Transport Control Protocol (RTCP), sister protocol for RTP providing stream statistics and status information Secure Real-time Transport Protocol (SRTP), encrypted version of RTP Session Description Protocol (SDP), a syntax for session initiation and announcement for multi-media communications and WebSocket transports. Inter-Asterisk eXchange (IAX), protocol used between Asterisk PBX instances Extensible Messaging and Presence Protocol (XMPP), instant messaging, presence information, and contact list maintenance Jingle, for peer-to-peer session control in XMPP Skype protocol, proprietary Internet telephony protocol suite based on peer-to-peer architecture Adoption[edit]. Consumer market[edit]. Example of residential network including VoIP Mass-market VoIP services use existing broadband Internet access, by which subscribers place and receive telephone calls in much the same manner as they would via the PSTN. Full-service VoIP phone companies provide inbound and outbound service with direct inbound dialing. Many offer unlimited domestic calling and sometimes international calls for a flat monthly subscription fee. Phone calls between subscribers of the same provider are usually free when flat-fee service is not available.[citation needed] A VoIP phone is necessary to connect to a VoIP service provider. This can be implemented in several ways: Dedicated VoIP phones connect directly to the IP network using technologies such as wired Ethernet or Wi-Fi. These are typically designed in the style of traditional digital business telephones. An analog telephone adapter connects to the network and implements the electronics and firmware to operate a conventional analog telephone attached through a modular phone jack. Some residential Internet gateways and cablemodems have this function built in. Softphone application software installed on a networked computer that is equipped with a microphone and speaker, or headset. The application typically presents a dial pad and display field to the user to operate the application by mouse clicks or keyboard input.[citation needed] PSTN and mobile network providers[edit]. It is increasingly common for telecommunications providers to use VoIP telephony over dedicated and public IP networks as a backhaul to connect switching centers and to interconnect with other telephony network providers; this is often referred to as IP backhaul.[6][7] Smartphones may have SIP clients built into the firmware or available as an application download.[8][9] Corporate use[edit]. Because of the bandwidth efficiency and low costs that VoIP technology can provide, businesses are migrating from traditional copper-wire telephone systems to VoIP systems to reduce their monthly phone costs. In 2008, 80% of all new Private branch exchange (PBX) lines installed internationally were VoIP.[10] For example, in the United States, the Social Security Administration is converting its field offices of 63,000 workers from traditional phone installations to a VoIP infrastructure carried over its existing data network.[11][12] VoIP allows both voice and data communications to be run over a single network, which can significantly reduce infrastructure costs. The prices of extensions on VoIP are lower than for PBX and key systems. VoIP switches may run on commodity hardware, such as personal computers. Rather than closed architectures, these devices rely on standard interfaces.[13] VoIP devices have simple, intuitive user interfaces, so users can often make simple system configuration changes. Dual-mode phones enable users to continue their conversations as they move between an outside cellular service and an internal Wi-Fi network, so that it is no longer necessary to carry both a desktop phone and a cell phone. Maintenance becomes simpler as there are fewer devices to oversee.[13] VoIP solutions aimed at businesses have evolved into unified communications services that treat all communications—phone calls, faxes, voice mail, e-mail, web conferences, and more—as discrete units that can all be delivered via any means and to any handset, including cellphones. Two kinds of service providers are operating in this space: one set is focused on VoIP for medium to large enterprises, while another is targeting the small-to-medium business (SMB) market.[14] Skype, which originally marketed itself as a service among friends, has begun to cater to businesses, providing free-of-charge connections between any users on the Skype network and connecting to and from ordinary PSTN telephones for a charge.[15] Delivery Mechanisms[edit]. In general, the provision of VoIP telephony systems to organizational or individual users can be divided into two primary delivery methods: private or on-premises solutions, or externally hosted solutions delivered by third-party providers. On-premises delivery methods are more akin to the classic PBX deployment model for connecting an office to local PSTN networks. While many use cases still remain for private or on-premises VoIP systems, the wider market has been gradually shifting toward Cloud or Hosted VoIP solutions. Hosted systems are also generally better suited to smaller or personal use VoIP deployments, where a private system may not be viable for these scenarios. Hosted VoIP Systems[edit]. Hosted or Cloud VoIP solutions involve a service provider or telecommunications carrier hosting the telephone system as a software solution within their own infrastructure. Typically this will be one or more datacentres, with geographic relevance to the end-user(s) of the system. This infrastructure is external to the user of the system and is deployed and maintained by the service provider. Endpoints, such as VoIP telephones or softphone applications (apps running on a computer or mobile device), will connect to the VoIP service remotely. These connections typically take place over public internet links, such as local fixed WAN breakout or mobile carrier service. Private VoIP Systems[edit]. Asterisk-based PBX for small business In the case of a private VoIP system, the primary telephony system itself is located within the private infrastructure of the end-user organization. Usually, the system will be deployed on-premises at a site within the direct control of the organization. This can provide numerous benefits in terms of QoS control (see below), cost scalability, and ensuring privacy and security of communications traffic. However, the responsibility for ensuring that the VoIP system remains performant and resilient is predominantly vested in the end-user organization. This is not the case with a Hosted VoIP solution. Private VoIP systems can be physical hardware PBX appliances, converged with other infrastructure, or they can be deployed as software applications. Generally, the latter two options will be in the form of a separate virtualized appliance. However, in some scenarios, these systems are deployed on bare metal infrastructure or IoT devices. With some solutions, such as 3CX, companies can attempt to blend the benefits of hosted and private on-premises systems by implementing their own private solution but within an external environment. Examples can include datacentre collocation services, public cloud, or private cloud locations. For on-premises systems, local endpoints within the same location typically connect directly over the LAN. For remote and external endpoints, available connectivity options mirror those of Hosted or Cloud VoIP solutions. However, VoIP traffic to and from the on-premises systems can often also be sent over secure private links. Examples include personal VPN, site-to-site VPN, private networks such as MPLS and SD-WAN, or via private SBCs (Session Border Controllers). While exceptions and private peering options do exist, it is generally uncommon for those private connectivity methods to be provided by Hosted or Cloud VoIP providers. Quality of service[edit]. Communication on the IP network is perceived as less reliable in contrast to the circuit-switched public telephone network because it does not provide a network-based mechanism to ensure that data packets are not lost, and are delivered in sequential order. It is a best-effort network without fundamental quality of service (QoS) guarantees. Voice, and all other data, travels in packets over IP networks with fixed maximum capacity. This system may be more prone to data loss in the presence of congestion[a] than traditional circuit switched systems; a circuit switched system of insufficient capacity will refuse new connections while carrying the remainder without impairment, while the quality of real-time data such as telephone conversations on packet-switched networks degrades dramatically.[17] Therefore, VoIP implementations may face problems with latency, packet loss, and jitter.[17][18] By default, network routers handle traffic on a first-come, first-served basis. Fixed delays cannot be controlled as they are caused by the physical distance the packets travel. They are especially problematic when satellite circuits are involved because of the long distance to a geostationary satellite and back; delays of 400–600 ms are typical. Latency can be minimized by marking voice packets as being delay-sensitive with QoS methods such as DiffServ.[17] Network routers on high volume traffic links may introduce latency that exceeds permissible thresholds for VoIP. Excessive load on a link can cause congestion and associated queueing delays and packet loss. This signals a transport protocol like TCP to reduce its transmission rate to alleviate the congestion. But VoIP usually uses UDP not TCP because recovering from congestion through retransmission usually entails too much latency.[17] So QoS mechanisms can avoid the undesirable loss of VoIP packets by immediately transmitting them ahead of any queued bulk traffic on the same link, even when the link is congested by bulk traffic. VoIP endpoints usually have to wait for the completion of transmission of previous packets before new data may be sent. Although it is possible to preempt (abort) a less important packet in mid-transmission, this is not commonly done, especially on high-speed links where transmission times are short even for maximum-sized packets.[19] An alternative to preemption on slower links, such as dialup and digital subscriber line (DSL), is to reduce the maximum transmission time by reducing the maximum transmission unit. But since every packet must contain protocol headers, this increases relative header overhead on every link traversed.[19] The receiver must resequence IP packets that arrive out of order and recover gracefully when packets arrive too late or not at all. Packet delay variation results from changes in queuing delay along a given network path due to competition from other users for the same transmission links. VoIP receivers accommodate this variation by storing incoming packets briefly in a playout buffer, deliberately increasing latency to improve the chance that each packet will be on hand when it is time for the voice engine to play it. The added delay is thus a compromise between excessive latency and excessive dropout, i.e. momentary audio interruptions. Although jitter is a random variable, it is the sum of several other random variables that are at least somewhat independent: the individual queuing delays of the routers along the Internet path in question. Motivated by the central limit theorem, jitter can be modeled as a Gaussian random variable. This suggests continually estimating the mean delay and its standard deviation and setting the playout delay so that only packets delayed more than several standard deviations above the mean will arrive too late to be useful. In practice, the variance in latency of many Internet paths is dominated by a small number (often one) of relatively slow and congested bottleneck links. Most Internet backbone links are now so fast (e.g. 10 Gbit/s) that their delays are dominated by the transmission medium (e.g. optical fiber) and the routers driving them do not have enough buffering for queuing delays to be significant.[citation needed] A number of protocols have been defined to support the reporting of quality of service (QoS) and quality of experience (QoE) for VoIP calls. These include RTP Control Protocol (RTCP) extended reports,[20] SIP RTCP summary reports, H.460.9 Annex B (for H.323), H.248.30 and MGCP extensions. The RTCP extended report VoIP metrics block specified by RFC 3611 is generated by an IP phone or gateway during a live call and contains information on packet loss rate, packet discard rate (because of jitter), packet loss/discard burst metrics (burst length/density, gap length/density), network delay, end system delay, signal/noise/echo level, mean opinion scores (MOS) and R factors and configuration information related to the jitter buffer. VoIP metrics reports are exchanged between IP endpoints on an occasional basis during a call, and an end of call message sent via SIP RTCP summary report or one of the other signaling protocol extensions. VoIP metrics reports are intended to support real-time feedback related to QoS problems, the exchange of information between the endpoints for improved call quality calculation and a variety of other applications. DSL and ATM[edit]. DSL modems typically provide Ethernet connections to local equipment, but inside they may actually be Asynchronous Transfer Mode (ATM) modems.[b] They use ATM Adaptation Layer 5 (AAL5) to segment each Ethernet packet into a series of 53-byte ATM cells for transmission, reassembling them back into Ethernet frames at the receiving end. Using a separate virtual circuit identifier (VCI) for audio over IP has the potential to reduce latency on shared connections. ATM's potential for latency reduction is greatest on slow links because worst-case latency decreases with increasing link speed. A full-size (1500 byte) Ethernet frame takes 94 ms to transmit at 128 kbit/s but only 8 ms at 1.5 Mbit/s. If this is the bottleneck link, this latency is probably small enough to ensure good VoIP performance without MTU reductions or multiple ATM VCs. The latest generations of DSL, VDSL and VDSL2, carry Ethernet without intermediate ATM/AAL5 layers, and they generally support IEEE 802.1p priority tagging so that VoIP can be queued ahead of less time-critical traffic.[17] ATM has substantial header overhead: 5/53 = 9.4%, roughly twice the total header overhead of a 1500 byte Ethernet frame. This "ATM tax" is incurred by every DSL user whether or not they take advantage of multiple virtual circuits – and few can.[17] Layer 2[edit]. Several protocols are used in the data link layer and physical layer for quality-of-service mechanisms that help VoIP applications work well even in the presence of network congestion. Some examples include: IEEE 802.11e is an approved amendment to the IEEE 802.11 standard that defines a set of quality-of-service enhancements for wireless LAN applications through modifications to the Media Access Control (MAC) layer. The standard is considered of critical importance for delay-sensitive applications, such as voice over wireless IP. IEEE 802.1p defines 8 different classes of service (including one dedicated to voice) for traffic on layer-2 wired Ethernet. The ITU-T G.hn standard, which provides a way to create a high-speed (up to 1 gigabit per second) Local area network (LAN) using existing home wiring (power lines, phone lines and coaxial cables). G.hn provides QoS by means of Contention-Free Transmission Opportunities (CFTXOPs) which are allocated to flows (such as a VoIP call) that require QoS and which have negotiated a contract with the network controllers. Performance metrics[edit]. The quality of voice transmission is characterized by several metrics that may be monitored by network elements and by the user agent hardware or software. Such metrics include network packet loss, packet jitter, packet latency (delay), post-dial delay, and echo. The metrics are determined by VoIP performance testing and monitoring.[21][22][23][24][25][26] PSTN integration[edit]. This section needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. (November 2019) (Learn how and when to remove this template message) A VoIP media gateway controller (aka Class 5 Softswitch) works in cooperation with a media gateway (aka IP Business Gateway) and connects the digital media stream, so as to complete the path for voice and data. Gateways include interfaces for connecting to standard PSTN networks. Ethernet interfaces are also included in the modern systems which are specially designed to link calls that are passed via VoIP.[27] E.164 is a global numbering standard for both the PSTN and public land mobile network (PLMN). Most VoIP implementations support E.164 to allow calls to be routed to and from VoIP subscribers and the PSTN/PLMN.[28] VoIP implementations can also allow other identification techniques to be used. For example, Skype allows subscribers to choose Skype names (usernames)[29] whereas SIP implementations can use Uniform Resource Identifier (URIs) similar to email addresses.[30] Often VoIP implementations employ methods of translating non-E.164 identifiers to E.164 numbers and vice versa, such as the Skype-In service provided by Skype[31] and the E.164 number to URI mapping (ENUM) service in IMS and SIP.[32] Echo can also be an issue for PSTN integration.[33] Common causes of echo include impedance mismatches in analog circuitry and an acoustic path from the receive to transmit signal at the receiving end. Number portability[edit]. Local number portability (LNP) and mobile number portability (MNP) also impact VoIP business. Number portability is a service that allows a subscriber to select a new telephone carrier without requiring a new number to be issued. Typically, it is the responsibility of the former carrier to "map" the old number to the undisclosed number assigned by the new carrier. This is achieved by maintaining a database of numbers. A dialed number is initially received by the original carrier and quickly rerouted to the new carrier. Multiple porting references must be maintained even if the subscriber returns to the original carrier. The FCC mandates carrier compliance with these consumer-protection stipulations. In November 2007, the Federal Communications Commission in the United States released an order extending number portability obligations to interconnected VoIP providers and carriers that support VoIP providers.[34] A voice call originating in the VoIP environment also faces least-cost routing (LCR) challenges to reach its destination if the number is routed to a mobile phone number on a traditional mobile carrier. LCR is based on checking the destination of each telephone call as it is made, and then sending the call via the network that will cost the customer the least. This rating is subject to some debate given the complexity of call routing created by number portability. With MNP in place, LCR providers can no longer rely on using the network root prefix to determine how to route a call. Instead, they must now determine the actual network of every number before routing the call.[citation needed] Therefore, VoIP solutions also need to handle MNP when routing a voice call. In countries without a central database, like the UK, it may be necessary to query the mobile network about which home network a mobile phone number belongs to. As the popularity of VoIP increases in the enterprise markets because of LCR options, VoIP needs to provide a certain level of reliability when handling calls. Emergency calls[edit]. A telephone connected to a land line has a direct relationship between a telephone number and a physical location, which is maintained by the telephone company and available to emergency responders via the national emergency response service centers in form of emergency subscriber lists. When an emergency call is received by a center the location is automatically determined from its databases and displayed on the operator console. In IP telephony, no such direct link between location and communications end point exists. Even a provider having wired infrastructure, such as a DSL provider, may know only the approximate location of the device, based on the IP address allocated to the network router and the known service address. Some ISPs do not track the automatic assignment of IP addresses to customer equipment.[35] IP communication provides for device mobility. For example, a residential broadband connection may be used as a link to a virtual private network of a corporate entity, in which case the IP address being used for customer communications may belong to the enterprise, not the residential ISP. Such off-premises extensions may appear as part of an upstream IP PBX. On mobile devices, e.g., a 3G handset or USB wireless broadband adapter, the IP address has no relationship with any physical location known to the telephony service provider, since a mobile user could be anywhere in a region with network coverage, even roaming via another cellular company. At the VoIP level, a phone or gateway may identify itself by its account credentials with a Session Initiation Protocol (SIP) registrar. In such cases, the Internet telephony service provider (ITSP) knows only that a particular user's equipment is active. Service providers often provide emergency response services by agreement with the user who registers a physical location and agrees that, if an emergency number is called from the IP device, emergency services are provided to that address only. Such emergency services are provided by VoIP vendors in the United States by a system called Enhanced 911 (E911), based on the Wireless Communications and Public Safety Act. The VoIP E911 emergency-calling system associates a physical address with the calling party's telephone number. All VoIP providers that provide access to the public switched telephone network are required to implement E911, a service for which the subscriber may be charged. "VoIP providers may not allow customers to opt-out of 911 service."[35] The VoIP E911 system is based on a static table lookup. Unlike in cellular phones, where the location of an E911 call can be traced using assisted GPS or other methods, the VoIP E911 information is accurate only if subscribers keep their emergency address information current.[citation needed] Fax support[edit]. Sending faxes over VoIP networks is sometimes referred to as Fax over IP (FoIP). Transmission of fax documents was problematic in early VoIP implementations, as most voice digitization and compression codecs are optimized for the representation of the human voice and the proper timing of the modem signals cannot be guaranteed in a packet-based, connectionless network. A standards-based solution for reliably delivering fax-over-IP is the T.38 protocol. The T.38 protocol is designed to compensate for the differences between traditional packet-less communications over analog lines and packet-based transmissions which are the basis for IP communications. The fax machine may be a standard device connected to an analog telephone adapter (ATA), or it may be a software application or dedicated network device operating via an Ethernet interface.[36] Originally, T.38 was designed to use UDP or TCP transmission methods across an IP network. Some newer high-end fax machines have built-in T.38 capabilities which are connected directly to a network switch or router. In T.38 each packet contains a portion of the data stream sent in the previous packet. Two successive packets have to be lost to actually lose data integrity. Power requirements[edit]. Telephones for traditional residential analog service are usually connected directly to telephone company phone lines which provide direct current to power most basic analog handsets independently of locally available electrical power. The susceptibility of phone service to power failures is a common problem even with traditional analog service where customers purchase telephone units that operate with wireless handsets to a base station, or that have other modern phone features, such as built-in voicemail or phone book features. IP Phones and VoIP telephone adapters connect to routers or cable modems which typically depend on the availability of mains electricity or locally generated power.[37] Some VoIP service providers use customer premises equipment (e.g., cable modems) with battery-backed power supplies to assure uninterrupted service for up to several hours in case of local power failures. Such battery-backed devices typically are designed for use with analog handsets. Some VoIP service providers implement services to route calls to other telephone services of the subscriber, such a cellular phone, in the event that the customer's network device is inaccessible to terminate the call. Security[edit]. The security concerns for VoIP telephone systems are similar to those of other Internet-connected devices. This means that hackers with knowledge of VoIP vulnerabilities can perform denial-of-service attacks, harvest customer data, record conversations, and compromise voicemail messages. Compromised VoIP user account or session credentials may enable an attacker to incur substantial charges from third-party services, such as long-distance or international calling. The technical details of many VoIP protocols create challenges in routing VoIP traffic through firewalls and network address translators, used to interconnect to transit networks or the Internet. Private session border controllers are often employed to enable VoIP calls to and from protected networks. Other methods to traverse NAT devices involve assistive protocols such as STUN and Interactive Connectivity Establishment (ICE). Standards for securing VoIP are available in the Secure Real-time Transport Protocol (SRTP) and the ZRTP protocol for analog telephony adapters, as well as for some softphones. IPsec is available to secure point-to-point VoIP at the transport level by using opportunistic encryption. Though many consumer VoIP solutions do not support encryption of the signaling path or the media, securing a VoIP phone is conceptually easier to implement using VoIP than on traditional telephone circuits. A result of the lack of widespread support fo encryption is that it is relatively easy to eavesdrop on VoIP calls when access to the data network is possible.[38] Free open-source solutions, such as Wireshark, facilitate capturing VoIP conversations. Government and military organizations use various security measures to protect VoIP traffic, such as voice over secure IP (VoSIP), secure voice over IP (SVoIP), and secure voice over secure IP (SVoSIP).[39] The distinction lies in whether encryption is applied in the telephone endpoint or in the network.[40] Secure voice over secure IP may be implemented by encrypting the media with protocols such as SRTP and ZRTP. Secure voice over IP uses Type 1 encryption on a classified network, such as SIPRNet.[41][42][43][44] Public Secure VoIP is also available with free GNU software and in many popular commercial VoIP programs via libraries, such as ZRTP.[45] Caller ID[edit]. Voice over IP protocols and equipment provide caller ID support that is compatible the PSTN. Many VoIP service providers also allow callers to configure custom caller ID information.[46] Hearing aid compatibility[edit]. Wireline telephones which are manufactured in, imported to, or intended to be used in the US with Voice over IP service, on or after February 28, 2020, are required to meet the hearing aid compatibility requirements set forth by the Federal Communications Commission.[47] Operational cost[edit]. VoIP has drastically reduced the cost of communication by sharing network infrastructure between data and voice.[48][49] A single broad-band connection has the ability to transmit more than one telephone call. Secure calls using standardized protocols, such as Secure Real-time Transport Protocol, as most of the facilities of creating a secure telephone connection over traditional phone lines, such as digitizing and digital transmission, are already in place with VoIP. It is necessary only to encrypt and authenticate the existing data stream. Automated software, such as a virtual PBX, may eliminate the need of personnel to greet and switch incoming calls. Regulatory and legal issues[edit]. As the popularity of VoIP grows, governments are becoming more interested in regulating VoIP in a manner similar to PSTN services.[50] Throughout the developing world, particularly in countries where regulation is weak or captured by the dominant operator, restrictions on the use of VoIP are often imposed, including in Panama where VoIP is taxed, Guyana where VoIP is prohibited.[51] In Ethiopia, where the government is nationalizing telecommunication service, it is a criminal offense to offer services using VoIP. The country has installed firewalls to prevent international calls from being made using VoIP. These measures were taken after the popularity of VoIP reduced the income generated by the state-owned telecommunication company. Canada[edit]. In Canada, the Canadian Radio-television and Telecommunications Commission regulates telephone service, including VoIP telephony service. VoIP services operating in Canada are required to provide 9-1-1 emergency service.[52] European Union[edit]. This section needs to be updated. Please help update this article to reflect recent events or newly available information. Last update: 2006 (September 2013) In the European Union, the treatment of VoIP service providers is a decision for each national telecommunications regulator, which must use competition law to define relevant national markets and then determine whether any service provider on those national markets has "significant market power" (and so should be subject to certain obligations). A general distinction is usually made between VoIP services that function over managed networks (via broadband connections) and VoIP services that function over unmanaged networks (essentially, the Internet).[citation needed] The relevant EU Directive is not clearly drafted concerning obligations that can exist independently of market power (e.g., the obligation to offer access to emergency calls), and it is impossible to say definitively whether VoIP service providers of either type are bound by them. A review of the EU Directive is underway and should be complete by 2007.[citation needed] Arab states of the GCC[edit]. Oman[edit]. In Oman, it is illegal to provide or use unauthorized VoIP services, to the extent that web sites of unlicensed VoIP providers have been blocked. Violations may be punished with fines of 50,000 Omani Rial (about 130,317 US dollars), a two-year prison sentence or both. In 2009, police raided 121 Internet cafes throughout the country and arrested 212 people for using or providing VoIP services.[53] Saudi Arabia[edit]. In September 2017, Saudi Arabia lifted the ban on VoIPs, in an attempt to reduce operational costs and spur digital entrepreneurship.[54][55] United Arab Emirates[edit]. In the United Arab Emirates (UAE), it is illegal to provide or use unauthorized VoIP services, to the extent that web sites of unlicensed VoIP providers have been blocked. However, some VoIPs such as Skype were allowed.[56] In January 2018, internet service providers in UAE blocked all VoIP apps, including Skype, but permitting only 2 "government-approved" VoIP apps (C’ME and BOTIM) for a fixed rate of Dh52.50 a month for use on mobile devices, and Dh105 a month to use over a computer connected."[57][58] In opposition, a petition on Change.org garnered over 5000 signatures, in response to which the website was blocked in UAE.[59] On March 24, 2020, the United Arab Emirates loosened restriction on VoIP services earlier prohibited in the country, to ease communication during the COVID-19 pandemic. However, popular instant messaging applications like WhatsApp, Skype, and FaceTime remained blocked from being used for voice and video calls, constricting residents to use paid services from the country's state-owned telecom providers.[60] India[edit]. In India, it is legal to use VoIP, but it is illegal to have VoIP gateways inside India.[61] This effectively means that people who have PCs can use them to make a VoIP call to any number, but if the remote side is a normal phone, the gateway that converts the VoIP call to a POTS call is not permitted by law to be inside India. Foreign-based VoIP server services are illegal to use in India.[61] In the interest of the Access Service Providers and International Long Distance Operators, the Internet telephony was permitted to the ISP with restrictions. Internet Telephony is considered to be a different service in its scope, nature, and kind from real-time voice as offered by other Access Service Providers and Long Distance Carriers. Hence the following type of Internet Telephony are permitted in India:[62] (a) PC to PC; within or outside India (b) PC / a device / Adapter conforming to the standard of any international agencies like- ITU or IETF etc. in India to PSTN/PLMN abroad. (c) Any device / Adapter conforming to standards of International agencies like ITU, IETF etc. connected to ISP node with static IP address to similar device / Adapter; within or outside India. (d) Except whatever is described in condition (ii) above[clarification needed], no other form of Internet Telephony is permitted. (e) In India no Separate Numbering Scheme is provided to the Internet Telephony. Presently the 10 digit Numbering allocation based on E.164 is permitted to the Fixed Telephony, GSM, CDMA wireless service. For Internet Telephony, the numbering scheme shall only conform to IP addressing Scheme of Internet Assigned Numbers Authority (IANA). Translation of E.164 number / private number to IP address allotted to any device and vice versa, by ISP to show compliance with IANA numbering scheme is not permitted. (f) The Internet Service Licensee is not permitted to have PSTN/PLMN connectivity. Voice communication to and from a telephone connected to PSTN/PLMN and following E.164 numbering is prohibited in India. South Korea[edit]. In South Korea, only providers registered with the government are authorized to offer VoIP services. Unlike many VoIP providers, most of whom offer flat rates, Korean VoIP services are generally metered and charged at rates similar to terrestrial calling. Foreign VoIP providers encounter high barriers to government registration. This issue came to a head in 2006 when Internet service providers providing personal Internet services by contract to United States Forces Korea members residing on USFK bases threatened to block off access to VoIP services used by USFK members as an economical way to keep in contact with their families in the United States, on the grounds that the service members' VoIP providers were not registered. A compromise was reached between USFK and Korean telecommunications officials in January 2007, wherein USFK service members arriving in Korea before June 1, 2007, and subscribing to the ISP services provided on base may continue to use their US-based VoIP subscription, but later arrivals must use a Korean-based VoIP provider, which by contract will offer pricing similar to the flat rates offered by US VoIP providers.[63] United States[edit]. In the United States, the Federal Communications Commission requires all interconnected VoIP service providers to comply with requirements comparable to those for traditional telecommunications service providers.[64] VoIP operators in the US are required to support local number portability; make service accessible to people with disabilities; pay regulatory fees, universal service contributions, and other mandated payments; and enable law enforcement authorities to conduct surveillance pursuant to the Communications Assistance for Law Enforcement Act (CALEA). Operators of "Interconnected" VoIP (fully connected to the PSTN) are mandated to provide Enhanced 911 service without special request, provide for customer location updates, clearly disclose any limitations on their E-911 functionality to their consumers, obtain affirmative acknowledgements of these disclosures from all consumers,[65] and 'may not allow their customers to “opt-out” of 911 service.'[66] VoIP operators also receive the benefit of certain US telecommunications regulations, including an entitlement to interconnection and exchange of traffic with incumbent local exchange carriers via wholesale carriers. Providers of "nomadic" VoIP service—those who are unable to determine the location of their users—are exempt from state telecommunications regulation.[67] Another legal issue that the US Congress is debating concerns changes to the Foreign Intelligence Surveillance Act. The issue in question is calls between Americans and foreigners. The National Security Agency (NSA) is not authorized to tap Americans' conversations without a warrant—but the Internet, and specifically VoIP does not draw as clear a line to the location of a caller or a call's recipient as the traditional phone system does. As VoIP's low cost and flexibility convinces more and more organizations to adopt the technology, the surveillance for law enforcement agencies becomes more difficult. VoIP technology has also increased Federal security concerns because VoIP and similar technologies have made it more difficult for the government to determine where a target is physically located when communications are being intercepted, and that creates a whole set of new legal challenges.[68] History[edit]. The early developments of packet network designs by Paul Baran and other researchers were motivated by a desire for a higher degree of circuit redundancy and network availability in the face of infrastructure failures than was possible in the circuit-switched networks in telecommunications of the mid-twentieth century. Danny Cohen first demonstrated a form of packet voice in 1973 as part of a flight simulator application, which operated across the early ARPANET.[69][70] On the early ARPANET, real-time voice communication was not possible with uncompressed pulse-code modulation (PCM) digital speech packets, which had a bit rate of 64 kbps, much greater than the 2.4 kbps bandwidth of early modems. The solution to this problem was linear predictive coding (LPC), a speech coding data compression algorithm that was first proposed by Fumitada Itakura of Nagoya University and Shuzo Saito of Nippon Telegraph and Telephone (NTT) in 1966. LPC was capable of speech compression down to 2.4 kbps, leading to the first successful real-time conversation over ARPANET in 1974, between Culler-Harrison Incorporated in Goleta, California, and MIT Lincoln Laboratory in Lexington, Massachusetts.[71] LPC has since been the most widely used speech coding method.[72] Code-excited linear prediction (CELP), a type of LPC algorithm, was developed by Manfred R. Schroeder and Bishnu S. Atal in 1985.[73] LPC algorithms remain an audio coding standard in modern VoIP technology.[71] In the following time span of about two decades, various forms of packet telephony were developed and industry interest groups formed to support the new technologies. Following the termination of the ARPANET project, and expansion of the Internet for commercial traffic, IP telephony was tested and deemed infeasible for commercial use until the introduction of VocalChat in the early 1990s and then in Feb 1995 the official release of Internet Phone (or iPhone for short) commercial software by VocalTec, based on the Audio Transceiver patent by Lior Haramaty and Alon Cohen, and followed by other VoIP infrastructure components such as telephony gateways and switching servers. Soon after it became an established area of interest in commercial labs of the major IT concerns. By the late 1990s, the first softswitches became available, and new protocols, such as H.323, MGCP and the Session Initiation Protocol (SIP) gained widespread attention. In the early 2000s, the proliferation of high-bandwidth always-on Internet connections to residential dwellings and businesses, spawned an industry of Internet telephony service providers (ITSPs). The development of open-source telephony software, such as Asterisk PBX, fueled widespread interest and entrepreneurship in voice-over-IP services, applying new Internet technology paradigms, such as cloud services to telephony. In 1999, a discrete cosine transform (DCT) audio data compression algorithm called the modified discrete cosine transform (MDCT) was adopted for the Siren codec, used in the G.722.1 wideband audio coding standard.[74][75] The same year, the MDCT was adapted into the LD-MDCT speech coding algorithm, used for the AAC-LD format and intended for significantly improved audio quality in VoIP applications.[76] MDCT has since been widely used in VoIP applications, such as the G.729.1 wideband codec introduced in 2006,[77] Apple's Facetime (using AAC-LD) introduced in 2010,[78] the CELT codec introduced in 2011,[79] the Opus codec introduced in 2012,[80] and WhatsApp's voice calling feature introduced in 2015.[81] Milestones[edit]. 1966: Linear predictive coding (LPC) proposed by Fumitada Itakura of Nagoya University and Shuzo Saito of Nippon Telegraph and Telephone (NTT).[71] 1973: Packet voice application by Danny Cohen. 1974: The Institute of Electrical and Electronics Engineers (IEEE) publishes a paper entitled "A Protocol for Packet Network Interconnection".[82] 1974: Network Voice Protocol (NVP) tested over ARPANET in August 1974, carrying barely audible 16 kpbs CVSD encoded voice.[71] 1974: The first successful real-time conversation over ARPANET achieved using 2.4 kpbs LPC, between Culler-Harrison Incorporated in Goleta, California, and MIT Lincoln Laboratory in Lexington, Massachusetts.[71] 1977: Danny Cohen and Jon Postel of the USC Information Sciences Institute, and Vint Cerf of the Defense Advanced Research Projects Agency (DARPA), agree to separate IP from TCP, and create UDP for carrying real-time traffic. 1981: IPv4 is described in RFC 791. 1985: The National Science Foundation commissions the creation of NSFNET.[83] 1985: Code-excited linear prediction (CELP), a type of LPC algorithm, developed by Manfred R. Schroeder and Bishnu S. Atal.[73] 1986: Proposals from various standards organizations[specify] for Voice over ATM, in addition to commercial packet voice products from companies such as StrataCom 1991: Speak Freely, a voice-over-IP application, was released to the public domain.[84][85] 1992: The Frame Relay Forum conducts development of standards for Voice over Frame Relay. 1992: InSoft Inc. announces and launches its desktop conferencing product Communique, which included VoIP and video.[84][86] The company is credited with developing the first generation of commercial, US-based VoIP, Internet media streaming and real-time Internet telephony/collaborative software and standards that would provide the basis for the Real Time Streaming Protocol (RTSP) standard. 1993 Release of VocalChat, a commercial packet network PC voice communication software from VocalTec. 1994: MTALK, a freeware LAN VoIP application for Linux[87] 1995: VocalTec releases Internet Phone commercial Internet phone software.[88][89] Beginning in 1995, Intel, Microsoft and Radvision initiated standardization activities for VoIP communications system.[90] 1996: ITU-T begins development of standards for the transmission and signaling of voice communications over Internet Protocol networks with the H.323 standard.[91] US telecommunication companies petition the US Congress to ban Internet phone technology.[92] G.729 speech codec introduced, using CELP (LPC) algorithm.[93] 1997: Level 3 began development of its first softswitch, a term they coined in 1998.[94] 1999: The Session Initiation Protocol (SIP) specification RFC 2543 is released.[95] Mark Spencer of Digium develops the first open source private branch exchange (PBX) software (Asterisk).[96] A discrete cosine transform (DCT) variant called the modified discrete cosine transform (MDCT) is adopted for the Siren codec, used in the G.722.1 wideband audio coding standard.[74][75] The MDCT is adapted into the LD-MDCT algorithm, used in the AAC-LD standard.[76] 2001: INOC-DBA, first inter-provider SIP network deployed; also first voice network to reach all seven continents.[97] 2003: First released in August 2003, Skype was the creation of Niklas Zennström and Janus Friis, in cooperation with four Estonian developers. It quickly became a popular program that helped democratise VoIP. 2004: Commercial VoIP service providers proliferate. 2006: G.729.1 wideband codec introduced, using MDCT and CELP (LPC) algorithms.[77] 2007: VoIP device manufacturers and sellers boom in Asia, specifically in the Philippines where many families of overseas workers reside.[98] 2009: SILK codec introduced, using LPC algorithm,[99] and used for voice calling in Skype.[100] 2010: Apple introduces FaceTime, which uses the LD-MDCT-based AAC-LD codec.[78] 2011: Rise of WebRTC technology which allows VoIP directly in browsers. CELT codec introduced, using MDCT algorithm.[79] 2012: Opus codec introduced, using MDCT and LPC algorithms.[80] See also[edit]. Audio over IP Communications Assistance For Law Enforcement Act Comparison of audio network protocols Comparison of VoIP software Differentiated services High bit rate audio video over Internet Protocol Integrated services Internet fax IP Multimedia Subsystem List of VoIP companies Mobile VoIP Network Voice Protocol RTP audio video profile SIP Trunking UNIStim Voice VPN VoiceXML VoIP recording Notes[edit]. ^ IP networks may also be more prone to DoS attacks that cause congestion.[16] ^ Technologies such as 802.3ah can be used for DSL connectivity without using ATM. References[edit]. ^ "XMPP Federation". Google Talkabout. 2006. Retrieved May 11, 2012. ^ Booth, C (2010). "Chapter 2: IP Phones, Software VoIP, and Integrated and Mobile VoIP". Library Technology Reports. 46 (5): 11–19. ^ "VoIP". Cambridge Dictionaries Online. ^ Montazerolghaem, Ahmadreza; Moghaddam, Mohammad Hossein Yaghmaee; Leon-Garcia, Alberto (March 2018). "OpenSIP: Toward Software-Defined SIP Networking". IEEE Transactions on Network and Service Management. 15 (1): 184–199. arXiv:1709.01320. doi:10.1109/TNSM.2017.2741258. ISSN 1932-4537. S2CID 3873601. ^ "H.323 and SIP Integration". Retrieved January 24, 2020. ^ "WIRELESS: Carriers look to IP for backhaul". www.eetimes.com. EE Times. Archived from the original on August 9, 2011. Retrieved April 8, 2015.CS1 maint: unfit URL (link) ^ "Mobile's IP challenge". www.totaltele.com. Total Telecom Online. Archived from the original on February 17, 2006. Retrieved April 8, 2015.CS1 maint: unfit URL (link) ^ "Android SIP Client". Retrieved January 30, 2018. ^ "Learn to Make Free or Inexpensive Calls Using SIP on Android". Retrieved January 30, 2018. ^ Michael Dosch and Steve Church. "VoIP in the Broadcast Studio". Axia Audio. Archived from the original on October 7, 2011. Retrieved June 21, 2011. ^ Jackson, William (May 27, 2009). "SSA goes big on VOIP". Government Computer News. Retrieved May 28, 2009. ^ "Social Security to Build "World's Largest VOIP"". Government Technology. Archived from the original on June 2, 2009. Retrieved May 29, 2009. ^ a b Korzeniowski, Peter (January 8, 2009). "Three Technologies You Need In 2009". Forbes. Retrieved March 2, 2009. ^ Callahan, Renee (December 9, 2008). "Businesses Move To Voice-Over-IP". Forbes. Retrieved March 3, 2009. ^ "Skype For Business". skype.com. Retrieved March 16, 2009. ^ "VoIP - Vulnerability over Internet Protocol?". www.continuitycentral.com. ^ a b c d e f "Quality of Service for Voice over IP". Retrieved May 3, 2011. ^ Prabhakar, G.; Rastogi, R.; Thotton, M (2005). "OSS Architecture & Requirements for VoIP Networks". Bell Labs Technical Journal. 10 (1): 31–45. doi:10.1002/bltj.20077. S2CID 12336090. ^ a b "Quality of Service for Voice over IP". Retrieved May 3, 2011. ^ Caceres, Ramon. RTP Control Protocol Extended Reports (RTCP XR). doi:10.17487/RFC3611. RFC 3611. ^ CableLabs, PacketCable Residential SIP Telephony Feature Definition, Technical Report, PKT-TR-RST-V03-071106 (2007) ^ "VoIP performance measurement using QoS parameters" (PDF). A.H.Muhamad Amin. August 14, 2016. ^ "Methodology for SIP Infrastructure Performance Testing" (PDF). Miroslav Voznak, Jan Rozhon. August 14, 2016. ^ "Voice over IP (VoIP) Performance Evaluation on VMware vSphere® 5" (PDF). VMware. August 14, 2016. ^ "Performance and Stress Testing of SIP Servers, Clients and IP Networks". StarTrinity. August 13, 2016. ^ "Testing Voice over IP (VolP) Networks" (PDF). IXIA. August 14, 2016. ^ "Importance of Softswitch VoIP Technology". ixc.ua. May 20, 2011. Archived from the original on November 26, 2012. ^ "RFC 3824– Using E.164 numbers with the Session Initiation Protocol (SIP)". The Internet Society. June 1, 2004. Retrieved January 21, 2009. ^ "Create a Skype Name". Skype. Retrieved January 21, 2009. ^ "RFC 3969– The Internet Assigned Number Authority (IANA) Uniform Resource Identifier (URI) Parameter Registry for the Session Initiation Protocol (SIP)". The Internet Society. December 1, 2004. Retrieved January 21, 2009. ^ "Your personal online number". Skype. Retrieved January 21, 2009. ^ "Application-level Network Interoperability and the Evolution of IMS". TMCnet.com. May 24, 2006. Retrieved January 21, 2009. ^ Jeff Riddel (2007). Packetcable Implementation. Cisco Press. p. 557. ISBN 978-1-58705-181-4. ^ "Keeping your telephone number when you change your service provider". FCC. ^ a b "FCC Consumer Advisory VoIP and 911 Service" (PDF). Retrieved May 2, 2011. ^ Soft-Switch.org, Faxing over IP networks ^ "ICT Regulation Tool Kit – 4.4 VOIP – Regulatory Issues – Universal Service". Retrieved September 21, 2017. ^ "Examining Two Well-Known Attacks on VoIP". CircleID. Retrieved April 5, 2006. ^ Disa.mil, Internet Protocol Telephony & Voice over Internet Protocol Security Technical Implementation Guide ^ Secure Voice over IP (SVoIP) vs. Voice over Secure IP (VoSIP) Installations General Dynamics C4 Systems ^ Dunte, Markus; Ruland, Christoph (June 2007). "Secure Voice-over-IP" (PDF). International Journal of Computer Science and Network Security. 7 (6): 63–68. ^ Sans.org, SANS Institute InfoSec Reading Room ^ White, C.M.; Teague, K.A.; Daniel, E.J. (November 7–10, 2004). Browse Conference Publications > Signals, Systems and Computer ... Help Working with Abstracts Packet loss concealment in a secure voice over IP environment (PDF). Signals, Systems and Computers, 2004. Conference Record of the Thirty-Eighth Asilomar Conference on. 1. pp. 415–419. CiteSeerX 10.1.1.219.633. doi:10.1109/ACSSC.2004.1399165. ISBN 978-0-7803-8622-8. S2CID 402760. ^ "Cellcrypt secure VOIP heading to BlackBerry". Networkworld.com. ^ "Secure VOIP calling, free software, and the right to privacy". Free Software Magazine. ^ VOIPSA.org, Blog: "Hello Mom, I'm a Fake!" (Telespoof and Fakecaller). ^ "Hearing Aid Compatibility for Wireline and Wireless Telephones". Federal Communications Commission. October 30, 2014. Retrieved July 9, 2019. ^ FCC.gov, What are some advantages of VoIP? ^ "Page Not Found | HP® Official Site" (PDF). Cite uses generic title (help) ^ "Global VOIP Policy Status Matrix". Global IP Alliance. Retrieved November 23, 2006. ^ Proenza, Francisco J. "The Road to Broadband Development in Developing Countries is through Competition Driven by Wireless and VOIP" (PDF). Archived from the original (PDF) on June 2, 2012. Retrieved April 7, 2008. ^ "Telecom Decision CRTC 2005-21". Canadian Radio-television and Telecommunications Commission. Government of Canada. April 4, 2005. Retrieved April 29, 2017. ^ Metz, Cade. "Oman cuffs 212 for selling VoIP calls". The Register. Retrieved September 20, 2016. ^ "Saudi Arabia to lift ban on internet calls". BBC News. September 20, 2017. Retrieved January 10, 2018. ^ "Saudi Arabia to lift ban on internet calls". Reuters. September 20, 2017. Retrieved January 10, 2018. ^ "Don't worry, Skype is working in UAE". Khaleejtimes. June 26, 2017. Retrieved January 11, 2018. ^ Debusmann Jr, Bernd (January 9, 2018). "Etisalat launches new unlimited calling plan with VoIP apps". Arabian Business. Retrieved January 9, 2018. ^ Maceda, Cleofe (January 8, 2018). "No Skype? Pay Dh50 monthly for video calls". Gulf News. Retrieved January 9, 2018. ^ Zacharias, Anna \ (January 8, 2018). "Etisalat launches new calling app plan days after Skype disruptions". The National. Retrieved January 9, 2018. ^ "UAE loosens some VoIP restrictions as residents in lockdown call for end to WhatsApp and Skype ban". CNBC. March 26, 2020. Retrieved March 26, 2020. ^ a b Mahanagar Doorsanchar Bhawan and Jawahar Lal Nehru Marg (May 2008). "Telecom Regulatory Authority of India (TRAI) Consultation paper on Issues related to Internet Telephony. Consultation Paper No. 11/2008" (PDF). New Delhi India: Telecom Regulatory Authority of India (TRAI). p. 16 (Section 2.2.1.2 PC–to–Phone Internet telephony). Archived from the original (PDF) on October 6, 2014. Retrieved September 19, 2012. An end-user is allowed to make PC–to-Phone Internet Telephony calls only on PSTN/PLMN abroad. ^ Harish Kumar Gangwar Technical Note on Illegal International Long Distance telephone Exchange in India ^ Stripes.com, Stars and Stripes: USFK deal keeps VoIP access for troops ^ Pershing, Genny. "Cybertelecom :: VoIP :: FCC". www.cybertelecom.org. Retrieved September 21, 2017. ^ GPO.gov, 47 C.F.R. pt. 9 (2007) ^ "VoIP and 911 Service". FCC. May 26, 2011. Retrieved August 16, 2014. ^ "Voice Over Internet Protocol (VoIP)". November 18, 2010. Retrieved September 21, 2017. ^ Greenberg, Andy (May 15, 2008). "The State Of Cybersecurity Wiretapping's Fuzzy Future". Forbes. Retrieved March 2, 2009. ^ "Danny Cohen". INTERNET HALL of FAME. Retrieved December 6, 2014. ^ Advanced Content Delivery, Streaming, and Cloud Services (Pg 34). Willey. September 19, 2014. ISBN 9781118909706. Retrieved December 6, 2014. ^ a b c d e Gray, Robert M. (2010). "A History of Realtime Digital Speech on Packet Networks: Part II of Linear Predictive Coding and the Internet Protocol" (PDF). Found. Trends Signal Process. 3 (4): 203–303. doi:10.1561/2000000036. ISSN 1932-8346. ^ Gupta, Shipra (May 2016). "Application of MFCC in Text Independent Speaker Recognition" (PDF). International Journal of Advanced Research in Computer Science and Software Engineering. 6 (5): 805–810 (806). ISSN 2277-128X. S2CID 212485331. Archived from the original (PDF) on October 18, 2019. Retrieved October 18, 2019. ^ a b M. R. Schroeder and B. S. Atal, "Code-excited linear prediction (CELP): high-quality speech at very low bit rates," in Proceedings of the IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), vol. 10, pp. 937–940, 1985. ^ a b Hersent, Olivier; Petit, Jean-Pierre; Gurle, David (2005). Beyond VoIP Protocols: Understanding Voice Technology and Networking Techniques for IP Telephony. John Wiley & Sons. p. 55. ISBN 9780470023631. ^ a b Lutzky, Manfred; Schuller, Gerald; Gayer, Marc; Krämer, Ulrich; Wabnik, Stefan (May 2004). A guideline to audio codec delay (PDF). 116th AES Convention. Fraunhofer IIS. Audio Engineering Society. Retrieved October 24, 2019. ^ a b Schnell, Markus; Schmidt, Markus; Jander, Manuel; Albert, Tobias; Geiger, Ralf; Ruoppila, Vesa; Ekstrand, Per; Bernhard, Grill (October 2008). MPEG-4 Enhanced Low Delay AAC - A New Standard for High Quality Communication (PDF). 125th AES Convention. Fraunhofer IIS. Audio Engineering Society. Retrieved October 20, 2019. ^ a b Nagireddi, Sivannarayana (2008). VoIP Voice and Fax Signal Processing. John Wiley & Sons. p. 69. ISBN 9780470377864. ^ a b Daniel Eran Dilger (June 8, 2010). "Inside iPhone 4: FaceTime video calling". AppleInsider. Retrieved June 9, 2010. ^ a b Presentation of the CELT codec by Timothy B. Terriberry (65 minutes of video, see also presentation slides in PDF) ^ a b Valin, Jean-Marc; Maxwell, Gregory; Terriberry, Timothy B.; Vos, Koen (October 2013). High-Quality, Low-Delay Music Coding in the Opus Codec. 135th AES Convention. Audio Engineering Society. arXiv:1602.04845. ^ Leyden, John (October 27, 2015). "WhatsApp laid bare: Info-sucking app's innards probed". The Register. Retrieved October 19, 2019. ^ Cerf, V.; Kahn, R. (May 1974). "A Protocol for Packet Network Intercommunication" (PDF). IEEE Transactions on Communications. 22 (5): 637–648. doi:10.1109/TCOM.1974.1092259. ^ "The Launch of NSFNET". The National Science Foundation. Retrieved January 21, 2009. ^ a b Dua, Amit. "VoIP Basics: Everything Beginners Should Know!". business2community.com. Business 2 Community. Retrieved September 14, 2021. ^ McCraw, Corey. "The History of VoIP Over the Last 55 Years (1966 to 2021)". fitsmallbusiness.com. Fits Small Business. ^ IDG Network World Inc; Eckerson, Wayne (September 21, 1992). "Network World - Startup targets desktop Videoconferencing arena". Network World. IDG Network World Inc: 39–. ISSN 0887-7661. Retrieved February 10, 2012. ^ "MTALK-Readme" (TXT). Sunsite.edu. Retrieved April 29, 2012. ^ Keating, Tom. "Internet Phone Release 4" (PDF). Computer Telephony Interaction Magazine. Retrieved November 7, 2007. ^ "The 10 that Established VOIP (Part 1: VocalTec)". iLocus. Retrieved January 21, 2009. ^ The free Library RADVision and Intel Target Compatibility Between RADVision's H.323/320 Videoconferencing Gateway And Intel's Business Video Conferencing And TeamStation Products. June 2, 1997 VoiP Developer Solutions ^ "H.323 Visual telephone systems and equipment for local area networks which provide a non-guaranteed quality of service". ITU-T. Retrieved January 21, 2009. ^ "RFC 2235". R. Zakon. Retrieved January 21, 2009. ^ International Telecommunications Union, Standardization Sector (ITU-T), Study Group 15 (1993-1996), Recommendation G.729, March 1996. ^ "The 10 that Established VOIP (Part 2: Level 3)". iLocus. July 13, 2007. Retrieved November 7, 2007. ^ "RFC 2543, SIP: Session Initiation Protocol". Handley, Schulzrinne, Schooler, Rosenberg. Retrieved January 21, 2009. ^ "What is Asterisk". Asterisk.org. Retrieved January 21, 2009. ^ Stapleton-Gray, Ross (2009). Inter-Network Operations Center Dial-by-ASN (INOC-DBA), a Resource for the Network Operator Community. Los Alamitos: IEEE Computer Society Press. ISBN 978-0-7695-3568-5. ^ Remo, Michelle V. (August 27, 2007). "Prospects bright for voice calls over internet". Philippine Daily Inquirer. Retrieved January 1, 2015. ^ Audio-Mitschnitt Archived February 10, 2013, at the Wayback Machine vom Treffen der IETF-Codec-Arbeitsgruppe auf der Konferenz IETF79 in Peking, China mit einer Darstellung der grundlegenden Funktionsprinzipien durch Koen Vos (MP3, ~70 MiB) ^ "Skype's new super wideband codec". Wirevolution.com. January 13, 2009. Retrieved March 31, 2009. External links[edit]. The dictionary definition of VoIP at Wiktionary Internet telephony travel guide from Wikivoyage vteComputer-mediated communication Online chat Online discussion Communication software Collaborative software Social network service Virtual learning environment Asynchronous conferencing Email Electronic mailing list FidoNet Usenet Internet forum Textboard Imageboard Shoutbox Bulletin board system Online guestbook Synchronous conferencing Data conferencing Instant messaging Internet Relay Chat LAN messenger Talker Videoconferencing Voice over IP Voice chat in online gaming Web chat Web conferencing Publishing Blog Microblogging Wiki vteTelephonyTypes Landline Mobile phone Satellite phone Photophone Connectivity Cable protection system Communications satellites Fibre-optical Free-space optical ISDN Mobile phone signal POTS PSTN Submarine cables VoIP Calls Missed call Misdialed call Nuisance call Phone tag Applications Fax transmission Telephone calls Telephone newspapers Théâtrophone Video calls  Telecommunication portal  Telephones portal vteTelecommunicationsHistory Beacon Broadcasting Cable protection system Cable TV Communications satellite Computer network Data compression audio DCT image video Digital media Internet video online video platform social media streaming Drums Edholm's law Electrical telegraph Fax Heliographs Hydraulic telegraph Information Age Information revolution Internet Mass media Mobile phone Smartphone Optical telecommunication Optical telegraphy Pager Photophone Prepaid mobile phone Radio Radiotelephone Satellite communications Semaphore Semiconductor device MOSFET transistor Smoke signals Telecommunications history Telautograph Telegraphy Teleprinter (teletype) Telephone The Telephone Cases Television digital streaming Undersea telegraph line Videotelephony Whistled language Wireless revolution Pioneers Nasir Ahmed Edwin Howard Armstrong Mohamed M. Atalla John Logie Baird Paul Baran John Bardeen Alexander Graham Bell Emile Berliner Tim Berners-Lee Francis Blake (telephone) Jagadish Chandra Bose Charles Bourseul Walter Houser Brattain Vint Cerf Claude Chappe Yogen Dalal Donald Davies Amos Dolbear Thomas Edison Lee de Forest Philo Farnsworth Reginald Fessenden Elisha Gray Oliver Heaviside Robert Hooke Erna Schneider Hoover Harold Hopkins Gardiner Greene Hubbard Internet pioneers Bob Kahn Dawon Kahng Charles K. Kao Narinder Singh Kapany Hedy Lamarr Innocenzo Manzetti Guglielmo Marconi Robert Metcalfe Antonio Meucci Samuel Morse Jun-ichi Nishizawa Charles Grafton Page Radia Perlman Alexander Stepanovich Popov Tivadar Puskás Johann Philipp Reis Claude Shannon Almon Brown Strowger Henry Sutton Charles Sumner Tainter Nikola Tesla Camille Tissot Alfred Vail Thomas A. Watson Charles Wheatstone Vladimir K. Zworykin Transmissionmedia Coaxial cable Fiber-optic communication optical fiber Free-space optical communication Molecular communication Radio waves wireless Transmission line data transmission circuit telecommunication circuit Network topologyand switching Bandwidth Links Nodes terminal Network switching circuit packet Telephone exchange Multiplexing Space-division Frequency-division Time-division Polarization-division Orbital angular-momentum Code-division Concepts Communication protocol Computer network Data transmission Store and forward Telecommunications equipment Types of network Cellular network Ethernet ISDN LAN Mobile NGN Public Switched Telephone Radio Television Telex UUCP WAN Wireless network Notable networks ARPANET BITNET CYCLADES FidoNet Internet Internet2 JANET NPL network Toasternet Usenet Locations Africa Americas North South Antarctica Asia Europe Oceania  Telecommunication portal Category Outline Commons Authority control General Integrated Authority File (Germany) National libraries Spain United States Latvia Japan Other Microsoft Academic Retrieved from "https://en.wikipedia.org/w/index.php?title=Voice_over_IP&oldid=1063067496" Categories: Voice over IPBroadbandVideotelephonyAudio network protocolsOffice equipmentHidden categories: CS1 maint: unfit URLCS1 errors: generic titleWebarchive template wayback linksArticles with short descriptionShort description is different from WikidataUse mdy dates from August 2021All articles with unsourced statementsArticles with unsourced statements from January 2020Articles with unsourced statements from May 2019Articles with unsourced statements from April 2019Articles needing additional references from November 2019All articles needing additional referencesArticles with unsourced statements from November 2019Wikipedia articles in need of updating from September 2013All Wikipedia articles in need of updatingArticles with unsourced statements from September 2013Wikipedia articles needing clarification from December 2019Articles needing more detailed referencesArticles with GND identifiersArticles with BNE identifiersArticles with LCCN identifiersArticles with LNB identifiersArticles with NDL identifiersArticles with MA identifiers Navigation menu. Search .
Topics
  • Topic
  • Tf
  • Position
  • voip
  • 201
  • 21
  • service
  • 104
  • 21
  • network
  • 103
  • 21
  • ip
  • 75
  • 21
  • voice
  • 72
  • 21
  • internet
  • 71
  • 21
  • protocol
  • 68
  • 21
  • retrieved
  • 64
  • 21
  • call
  • 62
  • 21
  • telephone
  • 49
  • 21
  • communication
  • 47
  • 21
  • phone
  • 46
  • 21
  • packet
  • 46
  • 21
  • provider
  • 45
  • 21
  • system
  • 41
  • 21
  • january
  • 37
  • 21
  • telephony
  • 35
  • 21
  • 2009
  • 33
  • 21
  • number
  • 32
  • 21
  • retrieved january
  • 26
  • 21
  • data
  • 26
  • 21
  • codec
  • 24
  • 21
  • user
  • 24
  • 21
  • device
  • 24
  • 21
  • audio
  • 24
  • 21
  • based
  • 24
  • 21
  • mobile
  • 23
  • 21
  • link
  • 23
  • 21
  • media
  • 23
  • 21
  • application
  • 23
  • 21
  • time
  • 22
  • 21
  • voip service
  • 21
  • 21
  • service provider
  • 21
  • 21
  • voice ip
  • 18
  • 21
  • real time
  • 15
  • 21
  • internet telephony
  • 14
  • 21
  • quality service
  • 12
  • 21
  • 21 2009
  • 12
  • 21
  • retrieved january 21
  • 11
  • 21
  • january 21 2009
  • 11
  • 21
  • january 21
  • 11
  • 21
  • retrieved april
  • 10
  • 21
  • ip network
  • 10
  • 21
  • internet protocol
  • 10
  • 21
  • voip provider
  • 10
  • 21
  • retrieved march
  • 9
  • 21
  • voip call
  • 9
  • 21
  • voip service provider
  • 8
  • 21
  • voip system
  • 8
  • 21
  • secure voice
  • 8
  • 21
  • united state
  • 8
  • 21
  • session initiation
  • 8
  • 21
  • codec introduced
  • 8
  • 21
  • archived original
  • 8
  • 21
  • session initiation protocol
  • 7
  • 21
  • schroeder
  • 7
  • 21
  • number portability
  • 7
  • 21
  • ip address
  • 7
  • 21
  • initiation protocol
  • 7
  • 21
  • voip solution
  • 7
  • 21
  • premis
  • 7
  • 21
  • june
  • 7
  • 21
  • january 2018
  • 6
  • 21
  • 2014
  • 6
  • 21
  • quality
  • 6
  • 21
  • 2010
  • 6
  • 21
  • voice communication
  • 6
  • 21
  • audio video
  • 6
  • 21
  • voip phone
  • 6
  • 21
  • control protocol
  • 6
  • 21
  • packet network
  • 6
  • 21
  • transport protocol
  • 6
  • 21
  • mobile phone
  • 6
  • 21
  • retrieved september
  • 6
  • 21
  • 2018
  • 6
  • 21
  • discrete cosine transform
  • 5
  • 21
  • real time transport
  • 5
  • 21
  • initiation protocol sip
  • 5
  • 21
  • internet service
  • 5
  • 21
  • 2019
  • 5
  • 21
  • telephone call
  • 5
  • 21
  • circuit switched
  • 5
  • 21
  • discrete cosine
  • 5
  • 21
  • cosine transform
  • 5
  • 21
  • aac ld
  • 5
  • 21
  • media gateway
  • 5
  • 21
  • time transport
  • 5
  • 21
  • voip implementation
  • 5
  • 21
  • packet loss
  • 5
  • 21
  • long distance
  • 5
  • 21
  • itu
  • 5
  • 21
  • protocol sip
  • 5
  • 21
  • internet phone
  • 5
  • 21
  • 2011
  • 5
  • 21
  • april
  • 5
  • 21
  • unsourced statement
  • 5
  • 21
  • voice internet protocol
  • 4
  • 21
  • linear predictive coding
  • 4
  • 21
  • time transport protocol
  • 4
  • 21
  • voice secure ip
  • 4
  • 21
  • secure voice ip
  • 4
  • 21
  • schroeder bishnu
  • 4
  • 21
  • august 14 2016
  • 4
  • 21
  • voice internet
  • 4
  • 21
  • ip telephony
  • 4
  • 21
  • telephone network
  • 4
  • 21
  • mobile network
  • 4
  • 21
  • hosted voip
  • 4
  • 21
  • private voip
  • 4
  • 21
  • hearing aid
  • 4
  • 21
  • saudi arabia
  • 4
  • 21
  • united arab
  • 4
  • 21
  • voip telephone
  • 4
  • 21
  • switched network
  • 4
  • 21
  • speech coding
  • 4
  • 21
  • linear predictive
  • 4
  • 21
  • predictive coding
  • 4
  • 21
  • open source
  • 4
  • 21
  • peer
  • 4
  • 21
  • telephone system
  • 4
  • 21
  • end user
  • 4
  • 21
  • voip performance
  • 4
  • 21
  • e164 number
  • 4
  • 21
  • service provided
  • 4
  • 21
  • federal communication
  • 4
  • 21
  • telephony service
  • 4
  • 21
  • voice secure
  • 4
  • 21
  • secure ip
  • 4
  • 21
  • based voip
  • 4
  • 21
  • 2007
  • 4
  • 21
  • law enforcement
  • 4
  • 21
  • danny cohen
  • 4
  • 21
  • december
  • 4
  • 21
  • august 14
  • 4
  • 21
  • 14 2016
  • 4
  • 21
  • september 21
  • 4
  • 21
  • retrieved october
  • 4
  • 21
  • network world
  • 4
  • 21
  • public switched telephone
  • 3
  • 21
  • private voip system
  • 3
  • 21
  • hearing aid compatibility
  • 3
  • 21
  • united arab emirate
  • 3
  • 21
  • predictive coding lpc
  • 3
  • 21
  • modified discrete cosine
  • 3
  • 21
  • cosine transform mdct
  • 3
  • 21
  • secure real time
  • 3
  • 21
  • private premis
  • 3
  • 21
  • hosted cloud voip
  • 3
  • 21
  • premis system
  • 3
  • 21
  • federal communication commission
  • 3
  • 21
  • telephony service provider
  • 3
  • 21
  • internet telephony permitted
  • 3
  • 21
  • code excited linear
  • 3
  • 21
  • excited linear prediction
  • 3
  • 21
  • linear prediction celp
  • 3
  • 21
  • codec introduced mdct
  • 3
  • 21
  • forbe retrieved march
  • 3
  • 21
  • march 2009
  • 3
  • 21
  • retrieved 2011
  • 3
  • 21
  • isbn 978
  • 3
  • 21
  • retrieved september 21
  • 3
  • 21
  • september 21 2017
  • 3
  • 21
  • archived original pdf
  • 3
  • 21
  • 2017 retrieved january
  • 3
  • 21
  • audio engineering society
  • 3
  • 21
  • original pdf
  • 3
  • 21
  • september 20
  • 3
  • 21
  • 2017 retrieved
  • 3
  • 21
  • high quality
  • 3
  • 21
  • ae convention
  • 3
  • 21
  • audio engineering
  • 3
  • 21
  • engineering society
  • 3
  • 21
Result 22
TitleHow VoIP Works Explained | GetVoIP
Urlhttps://getvoip.com/library/how-voip-works/
DescriptionVoice Over IP uses codecs to convert the voice signal from your telephone into a digital signal. Learn more about exactly How VoIP Works
Date8 Jun 2020
Organic Position21
H1How VoIP Works Explained
H2Codecs
Packet Switching
Making Calls with VoIP
VoIP: Features without Hardware
VoIP’s Approach to Telephone Numbers
How VoIP Benefits Business
H3
H2WithAnchorsCodecs
Packet Switching
Making Calls with VoIP
VoIP: Features without Hardware
VoIP’s Approach to Telephone Numbers
How VoIP Benefits Business
BodyHow VoIP Works Explained Featured In In a short period of time, VoIP has forever revolutionized the way we communicate. Applications in residential, business, and beyond allow for a wide range of capabilities and options that simply weren’t available with older systems.  In short, Voice over Internet Protocol (VoIP) is a method for taking analog audio signals, like the kind you hear when you talk on the phone, and turning them into digital data that can be transmitted over the internet. This is an incredibly stripped down explanation, so let’s delve deeper into what makes VoIP tick.   Codecs. The use of codecs is what makes VoIP possible – helping it run both smoothly and consistently. Voice over Internet Protocol uses computer algorithms called “codecs” to convert the voice signal from your telephone into a digital signal that is then transmitted over the internet.  If you are calling a regular telephone number, the signal is then converted back on the other end by switches that are near your terminating phone. This is why every call is a local call with VoIP. If you are calling another VoIP phone, the extra bandwidth allows for higher-quality audio, and even video and multi-way conference calls. There are a vast number of codecs that make VoIP work – each with their own function. One of the most common codecs is the G.711 codec, which samples audio at 64,000 times per second. To create a visual, think of this voice data being processed multiple times and compressed into a small fragmented package that’s then reassembled once it reaches the caller on the other end of the line. This is actually very similar to PSTN phones, which convert voice signals into electricity that’s then converted back into an audio signal on the other end of the call. Codecs typically vary in sound quality based on computational requirements, available bandwidth, etc. In a cross-section of various services, platforms, phones, or other elements that contribute to VoIP, one can find various devices, and each device supports its own roster of codecs. In the event that those two devices are communicating, they will negotiate as to which codec(s) will be used to best make a clear transmission.   Packet Switching. As an alternative to circuit switching, packet switching optimizes your conversations over VoIP to an “as needed” basis. In other words, silent intervals or dead air are mitigated in transmission or not sent at all. Data networks simply send and receive data only when necessary.  Source Through this method, a brief connection is opened up, which sends chopped data into small packets that are tagged with a small address indicating where they should be sent. Inside of each of these packets, you will find a payload – the file being transmitted that is most crucial.  Once sent to the router, it is transmitted from as many different connections as needed until it finally reaches the receiving computer or device. The journey is complete, and the packet begins to transmit instructions as to how to reassemble the disparate data into its desired conveyance. Since packets can be broken down and reassembled rather than stay in one piece, it is much more efficient—and therefore cheaper—than using a traditional phone system. Additionally, packet switching frees up the ability for computers to handle other tasks while packets are being transmitted.   Making Calls with VoIP. Analog Telephone Adaptor (ATA): With an ATA, you hook one end up to your existing telephone and the other to your cable modem. The ATA converts the voice signal into digital data, which is then sent along the internet until it reaches the called party.  ATAs are the most simple way to convert over to VoIP; it requires you to plug your old phone cable (RJ11) into the ATA from the device you’d like to convert while running an ethernet cable from your network to the adapter (see diagram). Once you have powered on the ATA, you’ll be equipped to make voice calls over the internet. [note: Setup will sometimes require installation and setup through software included with the ATA. Soft Client: The most popular applications are Skype or Google, which leverage web-based platforms as opposed to actual hardware (besides the hosting device). The technical term for these kinds of devices is a “softphone,” because, in the purest of forms, it is the compounding of software into the function of a phone.  Many providers offer soft clients as auxiliary or backup calling platforms, essentially sharing the same line when in use as your desktop phone, for instance. These clients are not limited only to desktops or laptops – as they’ve found their way onto VoIP ready devices like smartphones and tablets. Leveraging existing features of the host platform (such as cameras, built-in microphones, etc), softphones have gained popularity as a dependable, and at times, the preferred method for making VoIP communications work. IP Phone: The third way VoIP works is through dedicated “IP Phones”, designed specifically for VoIP. Instead of using RJ-11 phone connectors, IP phones use RJ-56 Ethernet connectors to plug into the web. Most IP phones connect directly to your modem or router with newer and advanced models even connecting to networks wirelessly. Aesthetically, most VoIP phones closely resemble traditional phones (12 digit keypads, handset, and cradle) with capabilities that far exceed those of their predecessors.  IP phones take full advantage of internet connectivity, providing real-time reports on incoming calls, detailed call logs, and more. The rapid progression of IP phone development has been fueled by companies like Polycom and Cisco. They have integrated video conferencing into VoIP calls via built-in or mounted cameras, along with a multitude of new developments and applications that are in full swing or still on the way.   VoIP: Features without Hardware. As an internet-based technology, VoIP has severely reduced hardware requirements when compared to traditional PSTN calling. For example, with traditional landlines, you’ll need access to a copper line system for relaying calls, phones, and perhaps a private branch exchange (PBX) to manage calls in your organization. With VoIP, you’ll typically need only any hardware associated with your internet connection and VoIP endpoints. VoIP endpoints are any hardware device that you use to connect to your service provider. This, of course, includes VoIP phones, but this can also include computers that run softphone software or simply computers with browser connections.  As a result, you’ll find that you’ll be much less hardware reliant with a VoIP connection; you really don’t even need phones if you have computers on which to make calls. In fact, VoIP calling is even available on Google Android or Apple iOS smart devices -all you need is an internet connection (cellular or Wi-Fi). This creates a virtual phone system for your business. Despite this lack of reliance on hardware, VoIP calling features are numerous. For example, call routing is a basic function in most VoIP service packages. Whereas features such as auto-attendants and IVR required hardware for PSTN, these are entirely software-based in VoIP. Other software-based services on VoIP include: Call Forwarding T.38 Faxing Voicemail CRM Integration Call Recording Automatic Call Distribution (ACD) Audio Conferencing Call Queues   VoIP’s Approach to Telephone Numbers. With a traditional landline, phone numbers are static because they are tied to a specific location. For this reason, if you were to call 911, the dispatch team would know where to send emergency services. VoIP, on the other hand, has a different approach to numbers. While VoIP numbers have the same digit system of an analog phone, they are much less limited when compared to standard PSTN. With VoIP, your provider can easily set up numbers to be quickly forwarded remotely or assigned to multiple devices. With features like remote call forwarding, you configure your calls to ring your desk first and then your phone or you can even have multiple devices ring simultaneously. Simply put, numbers are more dynamic because they aren’t tied to a specific line or device. This is very useful when you’re entering a new market. With VoIP, you can employ DID numbers, which are sometimes called virtual numbers. With virtual numbers, you provide your customers with an easy way to reach you. For example, with a virtual number, you set up numbers in specific territories so that customers reach your business easier.  Instead of dialing into your main office’s area code, they use a local number that you supply, which will make them feel more like they are calling a local business. This also works overseas where a customer will reach your remote business at a number that seems to them to be located in their country. Conversely, rather than create a local presence, you can use VoIP to create a national presence for your business. For example, rather than use a local area code (or country code), you can use a toll-free prefix. This makes the call free for the dialer, and numbers with 800 prefixes tend to give the appearance of being more extensive to customers. Finally, in addition to toll-free prefixes, you can also quickly create vanity numbers. These are easy to remember for customers because they incorporate words into the number – like 1-800-FLOWERS. While 1-800 prefixes are nothing new, they are much more accessible with VoIP, so smaller businesses can use them.    How VoIP Benefits Business. There are multiple benefits to selecting a modern business VoIP provider; there’s cheaper calling, less hardware reliance, and most providers have significant uptime via service level agreements (SLAs) that are greater than 99%. Additionally, VoIP intersects easily with other technologies like unified communications as a service (UCaaS) and communications platform as a service (CPaaS). VoIP provider quality and ratings vary across the board, especially with many services offering their own engine for making calls. For detailed reports from our expert team as well as consumers, be sure to consult our VoIP Reviews page to find out exactly what you’ll get with a particular subscription. Related Posts What is Omnichannel Customer Service? [Benefits & Tips] Is Cold Calling Still Effective In 2021? The Surprising Answer Statistics Show Latency Test for VoIP: How it Impacts Call Quality and Ways to Fix It Share Twitter Linkedin Facebook Email
Topics
  • Topic
  • Tf
  • Position
  • voip
  • 46
  • 22
  • phone
  • 25
  • 22
  • call
  • 23
  • 22
  • number
  • 19
  • 22
  • device
  • 14
  • 22
  • internet
  • 11
  • 22
  • business
  • 10
  • 22
  • service
  • 10
  • 22
  • codec
  • 9
  • 22
  • calling
  • 9
  • 22
  • hardware
  • 9
  • 22
  • data
  • 8
  • 22
  • packet
  • 8
  • 22
  • voice
  • 7
  • 22
  • signal
  • 7
  • 22
  • ata
  • 7
  • 22
  • ip phone
  • 6
  • 22
  • traditional
  • 6
  • 22
  • computer
  • 6
  • 22
  • reach
  • 6
  • 22
  • connection
  • 6
  • 22
  • provider
  • 6
  • 22
  • ip
  • 6
  • 22
  • customer
  • 6
  • 22
  • telephone
  • 5
  • 22
  • local
  • 5
  • 22
  • create
  • 5
  • 22
  • based
  • 5
  • 22
  • platform
  • 5
  • 22
  • software
  • 5
  • 22
  • feature
  • 5
  • 22
  • convert voice signal
  • 3
  • 22
  • voip work
  • 3
  • 22
  • convert voice
  • 3
  • 22
  • voice signal
  • 3
  • 22
  • voip calling
  • 3
  • 22
  • voip phone
  • 3
  • 22
  • packet switching
  • 3
  • 22
  • voip provider
  • 3
  • 22
  • virtual number
  • 3
  • 22
Result 23
TitleHow Do VoIP Phones Work? [FAQs] | RingCentral
Urlhttps://www.ringcentral.com/how-do-voip-phones-work.html
DescriptionIf you're not sure how VoIP phones work, or what the term 'VoIP phone' even means, you're not alone. We'll answer the question: how do VoIP phones work?
Date
Organic Position22
H1How Do VoIP Phones Work?
H2Understanding VoIP is not always easy
Do you need special phones for VoIP?
How does VoIP work with a mobile phone?
How do VoIP phones work?
Analog vs. VoIP phones: a few key differences
What are the benefits of a VoIP phone?
VoIP service improves mobility for remote and on-the-go employees
H3What is VoIP?
Can you use your landline business phones for VoIP calls?
VoIP phone service makes businesses’ communication systems more flexible and scalable
VoIP phone FAQs
Can you use a normal phone with VoIP?
What VoIP phones does RingCentral sell?
Can we lease RingCentral VoIP phones instead of buying them?
Which RingCentral VoIP phones are Cisco Presence-capable?
Do all RingCentral VoIP phones support HD voice?
H2WithAnchorsUnderstanding VoIP is not always easy
Do you need special phones for VoIP?
How does VoIP work with a mobile phone?
How do VoIP phones work?
Analog vs. VoIP phones: a few key differences
What are the benefits of a VoIP phone?
VoIP service improves mobility for remote and on-the-go employees
BodyHow Do VoIP Phones Work? Thank you. A RingCentral sales advisor will contact you within 24 hours. Understanding VoIP is not always easy. If you’re not sure how VoIP phones work, or what the term “VoIP phone” even means, you’re not alone. We hear this question often at RingCentral from businesses that are interested in using VoIP service but are unsure of what we mean by VoIP phones. So on this page, we’ll answer the question: how do VoIP phones work? What is VoIP? Before we jump into the details of what VoIP phones are, let’s first define what VoIP is. VoIP is a communications protocol that converts the speakers’ voices into a series of digital packets. Then, rather than being sent through the standard phone network, those packets are transmitted across the internet. Voice packets in a VoIP call travel online just like any other type of digital data, such as email messages or a document being uploaded to your favorite cloud storage app. What do we mean by VoIP phone? When businesses ask us if VoIP phones are physical phones, like the ones their employees currently have on their desks, our answer is: “Yes and no.” This is because the term VoIP phone simply refers to any device enabled with VoIP (Voice over Internet Protocol) technology. It could be an actual desktop phone that looks a lot like the analog phones we’ve all used for years, but it could also be a computer, tablet, mobile phone, or other internet-connected device equipped with VoIP software. Another way to think about this is that VoIP phones are available in two flavors: hardware phones and devices enabled with software that allows them to function as VoIP phones. Do you need special phones for VoIP? If you want VoIP to be directly connected to a device, then you absolutely need to invest in phones that are configured to work with the VoIP service you’re using. Your provider generally has a list of hardware you can use (you can even buy or rent from them). For example, RingCentral has a page covering all the telephony devices its solutions are compatible with. The devices can fall under 2 categories: The physical VoIP phone. The hardware-based flavor of VoIP phone is an actual desktop phone, similar to the standard models found in most offices today, but built to send and receive calls over the internet. (In fact, VoIP phones are also often called IP phones.) These phones typically have the familiar features and interface of a traditional business phone: touchpad, caller ID display, speakerphone capability, and buttons for features like speed dial and call transfer. Many businesses find that their employees are able to transition to VoIP phone service much more easily when using this type of VoIP device because their employees are already familiar and comfortable with the phone’s physical layout and features. The software-enabled VoIP phone. The second flavor of VoIP phone is any device (which might not be a phone at all) that is internet-enabled and loaded with software that allows it to receive and transmit VoIP calls. In other words, a software-enabled VoIP phone could be a desktop computer, laptop, tablet, or smartphone. With the VoIP software installed, the user can turn that device into a VoIP phone. This means that your employees can use an application to take and make business calls from anywhere, even their own personal smartphones, using their business phone number. How does VoIP work with a mobile phone? This is the most sophisticated method of leveraging the benefits of VoIP phone service. You can use software installed on your internet-enabled device, such as a mobile phone, to turn that device into your VoIP phone. This means you can use your personal mobile phone to place or receive calls using your business phone number, and callers on the other end will see your “business phone number” connected to your caller ID. Can you use your landline business phones for VoIP calls? The answer to this question is “kind of”. You can most definitely receive phone calls from your VoIP-based business phone system, but you can only do that through call routing. In order to do that, you’d need to log into your online dashboard and identify the phone number of your landline as auxiliary device. This means that if you don’t answer the call on your VoIP device, that call can be forwarded to your traditional line. But that doesn’t mean you can make VoIP calls using your old-school devices. Thankfully, IP phones don’t look all that different from landline phones so even the staunchest traditionalists can feel comfortable using them. How do VoIP phones work? We’ve already published a page explaining in detail how VoIP works; but in case you don’t have time to read it, here’s a quick summary: Voice over Internet Protocol is a series of technologies that make it possible for you to make online phone calls by converting traditional analog voice calls into digital packets of data—much like an email message or an mp3—and sending those voice packets between callers over the internet, rather than over the old-fashioned telephone network. As for how the VoIP phones themselves function, here is a brief overview of the technologies and processes involved: In terms of the physical phones themselves, many VoIP phones can be powered by the same Ethernet cable that connects to the phone to transmit data. This technology is called Power over Ethernet (PoE) and is often preferable for businesses because it reduces clutter and can also reduce cost, combining both power and data into a single cable connected to the phone. Other VoIP phones, however, do not offer PoE capability and instead require a separate A/C adapter to power the unit. In terms of connecting to the Internet, a VoIP phone will be assigned an IP address (just like any computer or another internet-connected device) and then will use a domain name system (DNS) to enable it to connect with other IP phones or VoIP-enabled devices. As for transmitting voice calls over the Internet, generally speaking, VoIP phones use one of two primary protocols: Session Initiation Protocol (SIP), or H.323. Both of these protocols support not only voice but also other types of data—including video transmissions. How do VoIP phones work for business? VoIP phones let your company leverage your existing internet service to create the foundation of a comprehensive business phone system that costs far less than the phone bill you’re currently paying to maintain your landline analog phones. VoIP phones also give your team more flexibility than a landline phone system could. With VoIP, your employees can take and make calls anywhere using their business numbers and their preferred devices: office phones, desktop computers, laptops, or even personal smartphones. Analog vs. VoIP phones: a few key differences. Although they are often very similar in terms of looks and features to analog landline phones, there are several key differences in how VoIP phones operate. Here are a few of the most significant distinctions: Because they transmit voice calls as digital data over the internet and not the phone network, VoIP phones do not require any dedicated “lines” the way we traditionally think of them. In fact, they don’t require any physical wiring other than their Ethernet connection (which is how they connect to the internet). VoIP phones are configured to work with a specific user, meaning they do not need to be permanently attached to a specific phone. Likewise, the phone number is not limited to one device. A VoIP phone user in an organization might use her desktop phone to make calls from her business phone number while she’s in the office, for example, but then use the software installed on her personal smartphone and laptop to make calls from that same number while she’s away from her desk. What are the benefits of a VoIP phone? There are many advantages to switching to VoIP phones from traditional business phone service, but we will highlight just a few of the primary benefits here: VoIP service improves mobility for remote and on-the-go employees. The reason many businesses, particularly small and midsize companies, become interested in VoIP phone service is the savings. Traditional phone service with the large telecommunication providers comes at a significant cost for small businesses, costs that usually include high monthly fees for each business phone line and high rates for long-distance calling (particularly for international calls). VoIP, on the other hand, has far lower ongoing costs, usually allows businesses to call long distance while paying local rates, and includes other services like video calls. VoIP phone service makes businesses’ communication systems more flexible and scalable. Because VoIP service can work anywhere and on any device with an internet connection, it can make a business’s employees far more mobile, allowing them to work anywhere. This is in sharp contrast to traditional landline phone service which ties employees to their desks if they need to take or make business calls. Also, consider what would happen if your company was moving to new offices. With a standard business phone system, you would need to work with your service provider to switch your dedicated phone lines from your existing office to the new location or acquire new lines altogether, and you would need to set up the physical phone system at the new office. With VoIP phone service, though, you could use your team’s softphone capability to continue normal phone service throughout the move. You wouldn’t need to acquire additional copper lines, change your business phone numbers, or experience any downtime without phone service whatsoever. A VoIP service’s any-device, anywhere communication capability improves productivity. In addition to the mobility VoIP service allows, with some services—such as RingCentral’s VoIP service—you can also let your employees integrate their VoIP service directly with their favorite business apps, like Office, Google, Salesforce, and Dropbox. They can pull their contacts and other data from these apps directly and automatically into their VoIP phone service and move more easily throughout the business day from project to project without having to jump across different apps. VoIP phone FAQs. (Because there are no dumb questions.) Can you use a normal phone with VoIP? . Not exactly. While people can certainly choose to use VoIP analog telephone adapters like the Cisco SPA-122 ATA to help convert a traditional phone’s signal for internet signals, it’s not really as reliable and convenient as investing in IP phones. What VoIP phones does RingCentral sell? . RingCentral offers many different VoIP phones and related devices, so there are likely several phones that will meet your business’s needs and budget. See all available VoIP phone and device options. Can we lease RingCentral VoIP phones instead of buying them? . You can. If you are a RingCentral customer in the US, you may choose to lease (as opposed to buy) our desk and conference phones. See our RingCentral Phone Lease Program and Rental Agreement for details. Which RingCentral VoIP phones are Cisco Presence-capable? . The following VoIP phones are Presence-capable: Cisco SPA508G, Cisco SPA514G, Cisco SPA525G2, Cisco 303, Polycom IP 650, Polycom VVX 311, Polycom VVX 411, and Polycom VVX 501. Do all RingCentral VoIP phones support HD voice? . All the Polycom and Cisco desk phones (except for Polycom IP321) and conference phones we sell and lease support HD voice capability. In addition to this, RingCentral for Desktop (softphone) and RingCentral mobile apps also support HD voice. Close X
Topics
  • Topic
  • Tf
  • Position
  • phone
  • 112
  • 23
  • voip
  • 82
  • 23
  • voip phone
  • 49
  • 23
  • business
  • 30
  • 23
  • service
  • 27
  • 23
  • device
  • 24
  • 23
  • call
  • 24
  • 23
  • ringcentral
  • 18
  • 23
  • internet
  • 17
  • 23
  • employee
  • 13
  • 23
  • number
  • 13
  • 23
  • business phone
  • 12
  • 23
  • work
  • 12
  • 23
  • voice
  • 12
  • 23
  • voip service
  • 11
  • 23
  • phone service
  • 11
  • 23
  • office
  • 9
  • 23
  • phone number
  • 8
  • 23
  • phone voip
  • 8
  • 23
  • data
  • 8
  • 23
  • software
  • 8
  • 23
  • physical
  • 7
  • 23
  • enabled
  • 7
  • 23
  • traditional
  • 7
  • 23
  • landline
  • 7
  • 23
  • system
  • 7
  • 23
  • cisco
  • 7
  • 23
  • voip phone service
  • 6
  • 23
  • protocol
  • 6
  • 23
  • desktop
  • 6
  • 23
  • analog
  • 6
  • 23
  • mobile
  • 6
  • 23
  • ip
  • 6
  • 23
  • line
  • 6
  • 23
  • polycom
  • 6
  • 23
  • voip phone work
  • 5
  • 23
  • business phone number
  • 5
  • 23
  • voip call
  • 5
  • 23
  • phone work
  • 5
  • 23
  • phone system
  • 5
  • 23
  • capability
  • 5
  • 23
  • cost
  • 5
  • 23
  • phone voip phone
  • 4
  • 23
  • ringcentral voip
  • 4
  • 23
  • mobile phone
  • 4
  • 23
  • ip phone
  • 4
  • 23
  • call voip
  • 4
  • 23
  • landline phone
  • 4
  • 23
  • voip phone mean
  • 3
  • 23
  • device voip phone
  • 3
  • 23
  • business phone system
  • 3
  • 23
  • ringcentral voip phone
  • 3
  • 23
  • support hd voice
  • 3
  • 23
  • phone mean
  • 3
  • 23
  • physical phone
  • 3
  • 23
  • enabled voip
  • 3
  • 23
  • desktop phone
  • 3
  • 23
  • connected device
  • 3
  • 23
  • phone device
  • 3
  • 23
  • software installed
  • 3
  • 23
  • device voip
  • 3
  • 23
  • business call
  • 3
  • 23
  • personal smartphone
  • 3
  • 23
  • benefit voip
  • 3
  • 23
  • call business
  • 3
  • 23
  • phone call
  • 3
  • 23
  • voice call
  • 3
  • 23
  • polycom vvx
  • 3
  • 23
  • support hd
  • 3
  • 23
  • hd voice
  • 3
  • 23
Result 24
TitleWhat is VoIP?
Urlhttps://www.yodel.io/blog/knowledge/what-is-voip/
DescriptionLearn all about Voice over Internet Protocol, from the technology that makes it work to the advantages of choosing a VoIP system for your business
Date28 Jun 2021
Organic Position23
H1What is VoIP?
H2Voice over Internet Protocol (VoIP) is a technology that lets users make calls over an internet connection. You may have heard it called IP telephony, internet telephony, or other alternative names. At the end of the day, terms used to describe internet based phone calls are referring to VoIP systems
How does VoIP Work?
The Advantages of a VoIP System
VoIP Advanced Features
How to Pick a VoIP Provider
Got another minute? Read up on our other blog posts:
H3knowledge
Collaboration tools can include features such as:
Productivity enhancers are features such as:
How To Set Up A Virtual Phone Number?
In Tech B2B Startups, How Useful is Cold Calling?
Effectively Leverage Your CRM
H2WithAnchorsVoice over Internet Protocol (VoIP) is a technology that lets users make calls over an internet connection. You may have heard it called IP telephony, internet telephony, or other alternative names. At the end of the day, terms used to describe internet based phone calls are referring to VoIP systems
How does VoIP Work?
The Advantages of a VoIP System
VoIP Advanced Features
How to Pick a VoIP Provider
Got another minute? Read up on our other blog posts:
BodyWhat is VoIP?Voice over Internet Protocol (VoIP) is a technology that lets users make calls over an internet connection. You may have heard it called IP telephony, internet telephony, or other alternative names. At the end of the day, terms used to describe internet based phone calls are referring to VoIP systems.Olivia MaierJune 28, 2021 · 3 min readVoIP technology converts your voice into a digital signal, which allows you to make calls from any device that can connect to the internet. That means your phone, computer, or other data-driven devices can now be used to make and receive calls.Many businesses looking for a new phone service provider are making the switch from traditional phone lines to a VoIP system. That is because a VoIP system is able to provide additional services and benefits beyond what a traditional telephone service could.How does VoIP Work?VoIP systems are able to pick up your voice through the microphone of the device that you are using. As said before, this can be a computer, phone, tablet, or another device that connects to the internet. Your voice generates analog voice signals, which are compressed into packets of data. The VoIP data packets are transmitted over the internet and then decompressed back to analog voice signals for the person on the other side of your phone call.For a VoIP user making and receiving calls is done in the same way that it would be with a traditional telephone system. The person on the other end of the call, whether they are using a VoIP system or not, wouldn’t notice any difference as well. This is helpful as it allows businesses to take advantage of this technology without any additional process necessary for users or the receivers of their calls.The Advantages of a VoIP System. As mentioned above, a VoIP system can provide additional services and benefits that lead to competitive advantages for businesses. Below are some generalized benefits for a VoIP system. Of course this may vary depending on a business’s current phone system, and what they are looking for in a VoIP system. But in general, businesses who take advantage of a VoIP system are able to see:Lower costsIncreased flexibilityProductivity improvementsImproved international capabilitiesOptimized integrationsHowever, a VoIP system isn’t always perfect for every business. Businesses who don’t have a strong and consistent internet connection will not be able to take full advantage of a VoIP system, as it is dependent on the internet. If your business is interested in a VoIP system but you do not currently have a strong internet connection, it may be prudent to begin your search by improving upon the strength of your internet connection.VoIP Advanced Features. VoIP providers are able to offer advanced features that traditional phones aren’t able to. These features will vary depending on who your provider is, but Yodel is able to offer collaboration tools, productivity enhancers, and more.Collaboration tools can include features such as:. Ring groupsCall whisperingConferencingAnd more!Productivity enhancers are features such as:. Call screeningVoicemail and call transcriptsBusiness text messagingAnd more!VoIP solutions in general are able to offer most or all of the features of a traditional telephone system. This means that you will have the ability to make and receive calls from a business phone number, and access voicemail.How to Pick a VoIP Provider. If you are looking to take advantage of a VoIP system, you might be overwhelmed with having to choose the right provider for you. In general, it is best practice to determine the features that your team absolutely needs. That will help you weed out many options who can’t offer you the non-negotiable features. From there, look to see which additional features can add value to your team, as well as pricing, and onboarding options.Our best recommendation is to take advantage of a free trial. With a free trial you will not only be able to see if a VoIP system in general is right for you, but if you have found the right provider.Got another minute? Read up on our other blog posts:. knowledgeHow To Set Up A Virtual Phone Number?In this article, we will discuss how to set up a virtual telephone number that actually works for …Clarisa AbalaseiMarch 17, 2021 · 3 min readopinion piecesIn Tech B2B Startups, How Useful is Cold Calling?Is it worthwhile to engage in this sales tactic, or should your team be investing their time …Olivia MaierDecember 22, 2021 · 4 min readknowledgeEffectively Leverage Your CRM. Take your Salesforce experience to the next level with smart integrations that can help you get even …Olivia MaierJuly 02, 2021 · 4 min readIntegrationsSlackDriftZapierIntegromatHubSpotSalesforceZendeskDiscordPipedriveTrelloVirtual NumbersVirtual Number U.S.Virtual Number CanadaVirtual Number GermanyVirtual Number FranceVirtual Number Netherlandssee more numbersAlternativesDialpad AlternativeAircall AlternativeCloudTalk AlternativeCallHippo AlternativeRingCentral AlternativeTalkdesk AlternativeJustCall AlternativeResourcesAppsSupportStatusBlogCompanyHomePricingSign upImprintTerms of ServicePrivacy PolicyCall Us +1 (855) 548-0800 +44 20 3856 7780 +43 1 393 20 50 +49 157 3598 9090 +52 33 4160 0772 +61 488 842 152Facebook Twitter© 2022 YodelTalk – All rights reserved.
Topics
  • Topic
  • Tf
  • Position
  • voip
  • 20
  • 24
  • system
  • 17
  • 24
  • voip system
  • 13
  • 24
  • internet
  • 11
  • 24
  • business
  • 10
  • 24
  • phone
  • 10
  • 24
  • feature
  • 9
  • 24
  • 2021
  • 8
  • 24
  • min
  • 8
  • 24
  • call
  • 8
  • 24
  • advantage
  • 7
  • 24
  • number
  • 7
  • 24
  • offer
  • 5
  • 24
  • voice
  • 5
  • 24
  • provider
  • 5
  • 24
  • traditional
  • 5
  • 24
  • 2021 min
  • 4
  • 24
  • advantage voip system
  • 4
  • 24
  • advantage voip
  • 4
  • 24
  • device
  • 4
  • 24
  • service
  • 4
  • 24
  • additional
  • 4
  • 24
  • telephone
  • 4
  • 24
  • general
  • 4
  • 24
  • internet connection
  • 3
  • 24
  • traditional telephone
  • 3
  • 24
  • technology
  • 3
  • 24
  • user
  • 3
  • 24
  • connection
  • 3
  • 24
  • signal
  • 3
  • 24
  • data
  • 3
  • 24
  • benefit
  • 3
  • 24
  • team
  • 3
  • 24
Result 25
TitleWhat is VoIP? | 8x8
Urlhttps://www.8x8.com/blog/what-is-voip?locale=uk
DescriptionVoice over Internet Protocol (VoIP) uses your existing internet connection to send voice, fax and SMS messages
Date27 Apr 2020
Organic Position24
H1What is VoIP?
H2How does VoIP work?
What is a VoIP Phone?
Traditional Phone Systems vs. VoIP Phone Services
How do I make a VoIP call?
Three Ways to Make a VoIP Call
How do VoIP numbers work?
Landline vs. VoIP: The Business Case
VoIP and Emergency Services
The 8x8 Difference
Additional VoIP Resources
RESOURCES
Explore Related
Request A Quote
H3What is a VoIP Number and Can I Use it Like a Regular Phone?
How do VoIP numbers work?
Analog Telephone Adapters (ATAs)
VoIP Phones
Computer-to-Computer
Traditional Business Phone Systems vs VoIP Phone Services
Extension Dialing
Auto Attendant
Ring Groups
Voicemail
VoIP and Unified Communications
VoIP and Customer Service
Browse other categories
Browse other categories
How XCaaS Helps CIOs and CFOs Partner for Success
16 UCaaS Influencers You Need to Follow in 2022
5 Steps To Get a “Yes!” for a Cloud Communications Business Case
1-866-879-8647
Total Training Units:
H2WithAnchorsHow does VoIP work?
What is a VoIP Phone?
Traditional Phone Systems vs. VoIP Phone Services
How do I make a VoIP call?
Three Ways to Make a VoIP Call
How do VoIP numbers work?
Landline vs. VoIP: The Business Case
VoIP and Emergency Services
The 8x8 Difference
Additional VoIP Resources
RESOURCES
Explore Related
Request A Quote
BodyWhat is VoIP?Kent YunkApril 27, 2020VoIP is an acronym for a set of technologies known collectively as Voice over Internet Protocol. VoIP services enable users to make and receive phone calls over an internet connection, bypassing legacy telephone companies and traditional phone line networks.How does VoIP work?IP technology organizes information into digital packets. Those packets are consolidated and transmitted en masse over broadband and wi-fi connections. VoIP protocols convert voice signals (phone calls), documents (fax) or messages (SMS text) into packets from a sender and reassemble those packets for compatible receivers. VoIP systems are often deployed as part of a larger unified communications strategy, augmenting video conferencing, instant messaging and other web-based communications with voice services and fax.All that you need to place a VoIP call is an internet connection and the proper software or hardware to access your VoIP system.What is a VoIP Phone?The simple answer is a VoIP phone is a piece of software or hardware that uses a microphone and receiver to allow users to make VoIP calls. It does this by converting audio signals into data packets that can be sent and received from online and converted back into sound.What is a VoIP Number and Can I Use it Like a Regular Phone?Just like a landline or mobile phone number, a VoIP number is an identifier that is used to make and receive calls. If you are calling out, there’s no real difference in the way you use your phone. The work to route the call through the internet is all done behind the scenes by VoIP clients, cloud-based switching and packet delivery, and the public internet.If you are calling into a VoIP telephone, you just dial the number the same way you would call any phone number and your call will connect.How do VoIP numbers work?VoIP numbers are one of the game-changing innovations of voice over IP technology. Unlike legacy phone networks, phone numbers on a VoIP network are specific to a user, not to a physical location. A single VoIP number can be hosted on multiple devices and a single device can receive calls for multiple VoIP numbers. Suddenly business travelers and remote teams don’t need to worry about juggling office, cell, and fax numbers or accounting for area codes or country codes when connecting with clients or teams.There is no need to change numbers when relocating team members or to set up finicky call forwarding to relay calls from one phone to another when traveling. Since multiple devices can send and receive VoIP calls, a team member can be made available on their tablet or mobile phones when they are unavailable from a desk phone.Traditional Phone Systems vs. VoIP Phone Services. Legacy phone systems work on a public switched telephone network (PSTN). PSTNs routed voice signals through copper wires, along fixed electrical paths, through a series of circuit switches and then to the call destination. Each phone on the PSTN has a unique, mandated location-specific number. This system required organizations with higher call volumes to manage the proliferation of telephone lines on their end with switchboards and expensive on-premises call routing hardware called private branch exchanges (PBX). Much of this hardware has digitized over time, but calls are still routed A-to-B across telephone lines.The technological capability for sending and receiving audio signals from one computer to another has been around for a while. The first packet-switched (as opposed to circuit-switched) program was written in 1973. Early computer telephony integration (also known as CTI) converted audio signals into packeted digital signals. These packets were relayed from one terminal to another on local area networks (LANs). Today, a PC downloading a page from a web server, or one computer sending an email message to another computer, uses the same form of data packet relay to move information across similar networks.Packet-switched communication is foundational to the layer of technology known as Internet Protocol (IP). IP networks route information from one dedicated IP address to another. So long as the IP address is correct, the kind of information- text, voice or video - is immaterial. However, moving packets of voice data over long distances without dropping part of the message is difficult with slow connection speeds. Broadband internet, and the widespread adoption of faster and faster delivery speeds brought VoIP technology where it is today.By converting and recovering data signals with greater efficiency, high-speed internet cut down on packet loss issues that were creating choppy signal and dropped calls. This led to the widespread adoption of VoIP phone systems across a range of industries.As more and more parts of the world adopt broadband connection speeds, companies use VoIP technology to link global operations. VoIP solutions now run sophisticated phone networks on the cloud, hosting PBX services, and packaging many of the traditional telephone company’s advanced features like call routing, caller id and long-distance call placement as standard VoIP services.How do I make a VoIP call?All that you need to place a VoIP call is an internet connection and the proper software or hardware to access your VoIP system.Three Ways to Make a VoIP Call. Analog Telephone Adapters (ATAs). ATAs convert a standard analog phone into a VoIP device. Audio signals from your analog phone are converted into packet-switched data. ATAs are the only way to convert a regular phone into a VoIP-enabled device.VoIP Phones. VoIP phones, also known as Internet phones, have the look and feel of an analog phone, but do not run on a landline phone system. Instead, they are connected to a gateway modem.Computer-to-Computer. Any computer or smart mobile device can make VoIP calls. All you need to do is install the appropriate VoIP software is installed. Using a computer-to-computer connection requires the receiving party to also have an internet connection. How do VoIP numbers work?VoIP numbers are one of the game-changing innovations of voice over IP technology. Unlike legacy phone networks, phone numbers on a VoIP network are specific to a user, not to a physical location. A single VoIP number can be hosted on multiple devices and a single device can receive calls for multiple VoIP numbers. Suddenly business travelers and remote teams don’t need to worry about juggling office, cell, and fax numbers or accounting for area codes or country codes when connecting with clients or teams.There is no need to change numbers when relocating team members or to set up finicky call forwarding to relay calls from one phone to another when traveling. Since multiple devices can send and receive VoIP calls, a team member can be made available on their tablet or mobile phones when they are unavailable from a desk phone.Landline vs. VoIP: The Business Case. When it comes to choosing a telephone system suited to your business needs, scale is key. Small businesses, especially those that regularly make international calls, benefit from what the low cost VoIP service providers can offer, compared to their traditional phone service peers.Organizations that handle telephone call volumes in the thousands daily can take advantage of the numerous efficiencies introduced by VoIP technology. Business phone systems with multiple lines typically rely on an on-premise private branch exchange (PBX) to route calls. PBX is a descendant of the central operator and switchboard models. Calls on a private phone network are directed and routed manually to lines inside and outside of that network. This system requires expensive, often bulky equipment to be stored and serviced on-site. Any gaps in service can mean costly delays and repair.By contrast, VoIP providers host PBX services on the cloud. Voice calls are routed through a central data center, call flow processing uptimes are 99.99%, and any updates to the system are enjoyed automatically. Unlike on-premise PBX, a VoIP PBX can be accessed anywhere and at any time. Calls to one office number can easily be routed to team members half a world away on their mobile devices or to their remote office locations.Traditional Business Phone Systems vs VoIP Phone Services. Traditional business phone systems are plagued by the depreciation of expensive analog equipment and the high operating costs associated with a dedicated team of specialists required to install and manage their operations. A VoIP phone service is simpler and faster to deploy, carries significant total cost of ownership advantages, and comes equipped with advanced business features that are updated via software, not hardware changes.Business VoIP services bring the functions of a traditional phone system into the modern office with a host of customized features updated regularly.Extension Dialing. Legacy phone services have long been able to connect employees on a private network via extensions and to reach a person directly by appending that extension to the main business phone number. With VoIP extension dialing, your dedicated employee extension travels with you. You can control how a call is routed- either to your desk phone, your computer, or your mobile device.Auto Attendant. Auto attendant functions like a virtual receptionist. VoIP customers can direct calls automatically using a software dashboard. Call flows are redirected in an instant and operate on a cadence set by you and your team.Ring Groups. On legacy PBX systems, spikes in call volume are difficult to anticipate and frustrating to manage. With VoIP technology, companies can establish ring groups that distribute calls to a pre-specified set of phones on the network. These groups can be configured to dial more numbers when volumes are especially high, increasing the likelihood that your clients’ calls are answered the first time, every time.Voicemail. Voicemail is ubiquitous in today’s world of communication. Business VoIP services help you control and prioritize your availability in ways regular phone services cannot. Set some calls to ring while routing others to voicemail. Receive email transcriptions for priority numbers. Efficiently screen incoming calls without any interruptions to your workflow. With VoIP voicemail, you are in control of when and how often your phone rings.VoIP and Unified Communications. Replacing legacy telephone services with a VoIP network does not only mean enjoying greater speed and reliability. VoIP service providers can bundle voice services with a full suite of unified communications that operate on protocols related to IP telephony (also known as internet telephony). These additional services are tethered by a Session Initiation Protocol (SIP) application that brings video, messaging, chat, screen sharing and web conferencing to one platform.This style of virtual office integration allows your team to make secure business calls on multiple devices, easily access personal and business contacts on one shared network and remotely host online meetings. By integrating phone systems with other communication channels, unified communications transforms how your team communicates and collaborates on a daily basis.VoIP and Customer Service. The same custom features and settings that differentiate VoIP solutions from existing legacy systems can empower VoIP solutions to improve your customer support and sales efforts on your call center channels. Businesses operating inbound or outbound call centers are especially reliant on the speed and uptime of their chosen voice service solution.VoIP services enhance existing call center and contact center capabilities by connecting call center agents with knowledgeable colleagues via team messaging and giving call center managers access to up-to-the-second analytics that show customer call pathways and agent response times. Call center software is just one piece of a fully unified communications strategy.VoIP and Emergency Services. Phone companies operating PSTNs connect one location-specific phone number to another. VoIP calls by contrast are routed from one IP address to another. This distinction meant that emergency call systems were initially incapable of locating the source of a VoIP call. 8x8 was the first VoIP provider to offer enhanced 911 service (e911) for all of its customers. Using a system of public service answering points (PSAPs), 8x8 was able to deliver address specific information to 911 providers in the United States and Canada. This breakthrough highlights one of the many ways 8x8 has served as a thought leader in VoIP technology over the past two decades.To learn more about e911 services and other VoIP-specific considerations we recommend this Consumer Guide compiled by the FCC.The 8x8 Difference. 8x8 brings together the most advanced and reliable VoIP services on the market with a complete unified communications suite that includes voice, video conferencing, team messaging, and contact center.Learn more about our technologies and our dedication to innovation. Or, speak to a member of our sales team today about how we can transform your communications.Additional VoIP Resources. Learn more about Unified CommunicationsCustomer case studies—Businesses around the world rely on 8x8Webinars—Online seminars tailored to business communicationsWhite papers—Reports and eGuides with information on business communicationsRESOURCES. Case StudiesData SheetsWhite PapersWebinarsLearnHints and TipsToolsCustomer ReviewsBrowse other categories. Original ThinkersCustomer ExperienceBusiness OperationsEmployee ExperienceIndustry TrendsTechnology & TransformationSee all articlesBrowse other categories. Original ThinkersCustomer ExperienceBusiness OperationsEmployee ExperienceIndustry TrendsTechnology & TransformationSee all articlesExplore Related. Jan 5, 2022 How XCaaS Helps CIOs and CFOs Partner for Success . Mayur Pitamber Learn how the potential of XCaaS can fuel CFO-CIO collaboration and deliver a successful strategy for both finance and IT. Dec 28, 2021 16 UCaaS Influencers You Need to Follow in 2022 . 8x8 Staff Unified communications (UCaaS) industry analysts, influencers, and subject matter experts to follow today on Twitter Dec 15, 2021 5 Steps To Get a “Yes!” for a Cloud Communications Business Case . Michael Keeler Use these to build a business case for investing in cloud communications. Request A Quote. Get your fast, no-obligation quote now 1-866-879-8647. Chat with an 8x8 ExpertChat with SalesSchedule a Meeting or DemoCalculate your savings in 60-seconds.Start 8x8 ROI ToolNeed product help?Go to SupportCart is empty. Add some items to your cart!Total Training Units:. 0PrintShareContact SalesContact sales to purchase training units and discuss instructor-led course availability
Topics
  • Topic
  • Tf
  • Position
  • voip
  • 62
  • 25
  • call
  • 52
  • 25
  • phone
  • 46
  • 25
  • service
  • 26
  • 25
  • number
  • 25
  • 25
  • business
  • 19
  • 25
  • system
  • 18
  • 25
  • network
  • 14
  • 25
  • communication
  • 13
  • 25
  • team
  • 13
  • 25
  • computer
  • 12
  • 25
  • telephone
  • 12
  • 25
  • voice
  • 12
  • 25
  • packet
  • 12
  • 25
  • technology
  • 11
  • 25
  • internet
  • 11
  • 25
  • device
  • 10
  • 25
  • voip call
  • 9
  • 25
  • phone system
  • 9
  • 25
  • routed
  • 9
  • 25
  • signal
  • 9
  • 25
  • voip number
  • 8
  • 25
  • connection
  • 8
  • 25
  • legacy
  • 8
  • 25
  • unified
  • 8
  • 25
  • ip
  • 8
  • 25
  • multiple
  • 8
  • 25
  • pbx
  • 8
  • 25
  • center
  • 8
  • 25
  • 8x8
  • 8
  • 25
  • unified communication
  • 7
  • 25
  • receive
  • 7
  • 25
  • software
  • 7
  • 25
  • voip service
  • 6
  • 25
  • voip phone
  • 6
  • 25
  • phone number
  • 6
  • 25
  • phone service
  • 6
  • 25
  • call center
  • 6
  • 25
  • speed
  • 6
  • 25
  • phone number voip
  • 5
  • 25
  • number voip
  • 5
  • 25
  • phone network
  • 5
  • 25
  • multiple device
  • 5
  • 25
  • team member
  • 5
  • 25
  • voip technology
  • 5
  • 25
  • call routed
  • 4
  • 25
  • call internet
  • 4
  • 25
  • internet connection
  • 4
  • 25
  • software hardware
  • 4
  • 25
  • audio signal
  • 4
  • 25
  • legacy phone
  • 4
  • 25
  • business phone
  • 4
  • 25
  • call internet connection
  • 3
  • 25
  • voip phone service
  • 3
  • 25
  • business phone system
  • 3
  • 25
  • traditional phone
  • 3
  • 25
  • voice service
  • 3
  • 25
  • mobile phone
  • 3
  • 25
  • receive call
  • 3
  • 25
  • call phone
  • 3
  • 25
  • voip network
  • 3
  • 25
  • call multiple
  • 3
  • 25
  • call volume
  • 3
  • 25
  • time call
  • 3
  • 25
  • ip address
  • 3
  • 25
  • voip solution
  • 3
  • 25
  • analog phone
  • 3
  • 25
  • phone voip
  • 3
  • 25
  • business case
  • 3
  • 25
Result 26
TitleWhat is VoIP and How Does It Work? - LinkedIn
Urlhttps://www.linkedin.com/pulse/what-voip-how-does-work-chad-byram
DescriptionVoIP is an acronym for Voice over Internet Protocol. This technology is sometimes referred to as broadband phone service, ...
Date5 Nov 2020
Organic Position25
H1
H2
H3
H2WithAnchors
Body
Topics
  • Topic
  • Tf
  • Position
Result 27
TitleHow VoIP works step by step? - FlashMob Computing
Urlhttps://www.flashmobcomputing.org/how-voip-works-step-by-step/
DescriptionA technical business guide to functional Voice over Internet Protocol (VoIP) When you use VoIP to place a phone call over the Internet, your voice has to be encoded into digital data, and the digitized voice has to be re-coded into voice signals at the other end of the call.…
Date
Organic Position26
H1How VoIP works step by step?
H2A technical business guide to functional Voice over Internet Protocol (VoIP)
How VoIP works step by step?
Components of business VoIP phones
How does VoIP work on cell phones?
Does VoIP work without Internet?
Related Articles
H3How VoIP phone system works?
Codecs
Packet switching
Making calls with VoIP phones
Requirements of VoIP system
How does VoIP work?
What is the best VoIP phone system?
Best VoIP Service for Home
Cloud PBX Explained: A Guide for Business Owners
What is the Industrial Internet of Things?
How much does an auto dialer cost?
What is API Service Virtualization?
How do I get VoIP?
How Does Digital Manufacturing Work?
How Connected Car Works?
H2WithAnchorsA technical business guide to functional Voice over Internet Protocol (VoIP)
How VoIP works step by step?
Components of business VoIP phones
How does VoIP work on cell phones?
Does VoIP work without Internet?
Related Articles
BodyHow VoIP works step by step? A technical business guide to functional Voice over Internet Protocol (VoIP). When you use VoIP to place a phone call over the Internet, your voice has to be encoded into digital data, and the digitized voice has to be re-coded into voice signals at the other end of the call. This process of encoding and decoding is achieved through codecs. Codecs make sure that data is compressed, which means that it is transferred faster, and as a result, the call quality is better. Voice over Internet Protocol (VoIP) has revolutionized communication systems. Applications to residential VoIP, companies, emergency calling and beyond allow for a wide range of capabilities that were not available with old systems. Besides capability VoIP software has reduced call rates and alternatives. Let’s dive deeper into how VoIP runs and operates. How VoIP works step by step? How VoIP phone system works? Step 1- First, Analog Telephone Adapter (ATA) or IP phone converts your voice from an analog to a digital signal. Step 2- It is then sent via the Internet in data packets to a location that will be close to the destination.  Note that the digital signal will be converted back to an analog signal for the remaining distance via a traditional circuit switch, (public switched telephone network) (not unless it is VoIP to VoIP). You can receive calls by conventional telephones globally, together with other VoIP users. VoIP to VoIP calls can transmit entirely through the Internet. Because your voice is changed to digital (so that it can travel over the Internet), other great features like call forward, voice messages to email, outgoing calls, voice mail services, instant messaging, logs of incoming and caller ID can be included in your standard VoIP call plan all for one low price. Most of these special features are excellent for the small business person or a call center software which depends on their phone service to be more an information center instead of just a telephone. Components of business VoIP phones. Codecs. The implementation of codecs is what makes VoIP possible, running smoothly and consistently. VoIP uses computer algorithms known as codecs to change the interactive voice signal from your telephone into a digital signal that is then transferred over the Internet. In case you are calling a regular phone number, the signal is then changed back on the other end by switches that are close to your terminating phone. This is why each call is a local call with VoIP. In case you are calling another VoIP phone, the additional bandwidth enables higher quality audio, and even video and multi-way conference calls. Numerous codecs make VoIP technologies works. Each codec has its own function. The most common codec is the G.711 codec, which samples audio at 64, 000 for every second. To build a visual, think of this VoIP voice data being processed multiple times and compressed into a small fragmented package, then reassembled after it reaches the caller on the other end of the line. Typically codecs vary in sound quality based on computational requirements, accessible data, and more. In a cross-section of various platforms, services, phones, or other elements that contributes to VoIP, one can find different codecs- every device supports its roster of codecs. In case those two devices are communicating, they will negotiate as to which codec will be deployed to make a transmission best. Packet switching. The substitute to circuit switching, packet switching optimizes your conversations via Voice over IP telephony to an “as needed” basis. In other words, silent intervals of dead air are mitigated in transmission or not sent at all. Data networks send and receive information only when necessary. Even though this method, a brief connection is opened up, which sends chopped data into small packets, tagged with a small address showing where they should be sent. Inside of every packet, you will see a payload-the file being transmitted that is most vital. After you have sent to the router, it is transmitted from as many different connections as required, and the packet starts to transmit instructions as to how to reassemble the disparate data into it’s desired conveyance. Because packets can be broken down and reassembled instead of staying in one piece, it is more efficient and thus cheaper than using a traditional telephone system. Besides, packet switching frees up the ability for computers to manage tasks whereas they are being transmitted. How does VoIP work on cell phones? Making calls with VoIP phones. VoIP works with a cell phone’s 4G or 3G, GSM, or any other internet telephony service to send a voice call via internet as digital signals through using voice over IP technology.  VoIP phones can also use WiFi hotspots to eliminate local and international calling costs of a cellular voice or data packages. It also eliminates upfront cost, installation and expensive management cost. This eventually saves money. Whichever the case, VoIP can use any of the following methods to work on mobile phones. ATA. With analog telephone adapters, you hook one end up to your existing telephone and the other to your cable modem. The ATA changes the voice signal into digital data, which is then sent along with the Internet until it reaches the known party. ATA is the most straightforward way to change over to VoIP, requiring you to plug your old telephone cable (RJ11) into the Analog Telephone Adapter from the device you would like to change while running an ethernet cable from your VoIP network to the adapter. After you have powered on the ATA, you will be equipped to make voice calls over the Internet. Note: Setup will sometimes need installation and setup through software included with the ATA. Soft Client. The most popular applications are Google or Skype, which leverage web-based platforms as opposed to actual hardware (besides the hosting device). The technical term for these kinds of tools is a softphone since, in the purest of forms, it is the compounding of application into the function of a telephone. VoIP provider and soft client. Many VoIP service providers provide soft clients as auxiliary or backup VoIP calling sites, typically sharing the same line when in use as your desktop telephone, for example. These clients are not restricted only to desktops or laptops since they have found their way onto VoIP ready devices such as smartphones and tablets. Leveraging existing features of the host platform like camera, built-in, and microphones, softphones have gained popularity as a dependable, and at times, the preferred method for making VoIP communications work. IP phone. The third way VoIP works on a cell phone is via dedicated IP phones explicitly designed for VoIP. Rather than using RJ-11 phone connectors, IP phones use RJ-56 Ethernet connectors to cork into the web. Most IP phone connects directly to your router or modem, with newer and advanced models even connecting to telephone networks wireless broadband. Aesthetically, most Voice over IP phones closely resembles traditional telephony (phones handset, cradle, and 12 digit keypads) with features that far exceed those of their predecessors. IP phone takes full advantage of internet connectivity, offering real-time reports on detailed call logs, incoming calls, and more. The fast progression of IP networks development has been fueled by companies such as Polycom and Cisco, who have integrated video conferencing into telephone calls through built-in or mounted cameras, together with a multitude of new developments and software that are in full saving or still on the way. Does VoIP work without Internet? Requirements of VoIP system. Unlike traditional phones systems, VoIP does not work without an internet connection. All Voice over IP services requires an internet connection, and the faster, the better. A pretty standard 512 kbps downstream, 128 kbps upstream connection would be sufficient, even though you have more than one individual using VoIP solutions at the same time on the same connection, the requirements increase. You can also buy a dedicated IP phone, but this is not necessary, as most providers offer a BYOD option. In ATA, sometimes provided free of charge via your VoIP service provider, can be linked to your existing business phone of a high-speed internet connection. With a PC, one can manage and use different features provided by the service provider, but owning a computer is not needed for VoIP service. Other VoIP requirements include: hardware which is not stringent, any machine bought in the last eighteen months (or even a little earlier) should be able to manage VoIP. Exact  VoIP requirements may vary from provider to provider, nonetheless. An audio-in-device (microphone) and audio-out device (speakers or headset) are also needed. Some of the advantages of Voice over IP phones include; quality call, enhances unified communications, saves costs, advanced features and more. The disadvantage of VoIP telephony include latency and reliability to internet connectivity. However you can use VoIP speed test to evaluate the bandwidth that your phone can manage. Related Articles. See More Related Articles How does VoIP work? . What is the best VoIP phone system? . Best VoIP Service for Home . Cloud PBX Explained: A Guide for Business Owners . What is the Industrial Internet of Things? . How much does an auto dialer cost? . What is API Service Virtualization? . How do I get VoIP? . How Does Digital Manufacturing Work? . How Connected Car Works? . See More Related Articles Scroll to Top
Topics
  • Topic
  • Tf
  • Position
  • voip
  • 52
  • 27
  • phone
  • 30
  • 27
  • voice
  • 21
  • 27
  • call
  • 20
  • 27
  • internet
  • 19
  • 27
  • work
  • 14
  • 27
  • telephone
  • 14
  • 27
  • codec
  • 13
  • 27
  • ip
  • 13
  • 27
  • service
  • 11
  • 27
  • data
  • 10
  • 27
  • ip phone
  • 9
  • 27
  • device
  • 9
  • 27
  • signal
  • 9
  • 27
  • voip work
  • 8
  • 27
  • step
  • 8
  • 27
  • digital
  • 8
  • 27
  • packet
  • 8
  • 27
  • system
  • 7
  • 27
  • ata
  • 7
  • 27
  • connection
  • 7
  • 27
  • provider
  • 7
  • 27
  • voip phone
  • 6
  • 27
  • analog
  • 6
  • 27
  • feature
  • 6
  • 27
  • voice ip
  • 5
  • 27
  • telephony
  • 5
  • 27
  • business
  • 5
  • 27
  • calling
  • 5
  • 27
  • network
  • 5
  • 27
  • requirement
  • 5
  • 27
  • cost
  • 5
  • 27
  • work step
  • 4
  • 27
  • analog telephone
  • 4
  • 27
  • cell phone
  • 4
  • 27
  • digital signal
  • 4
  • 27
  • voip service
  • 4
  • 27
  • manage
  • 4
  • 27
  • client
  • 4
  • 27
  • analog telephone adapter
  • 3
  • 27
  • voip work cell
  • 3
  • 27
  • work cell phone
  • 3
  • 27
  • voip voip
  • 3
  • 27
  • call internet
  • 3
  • 27
  • voice signal
  • 3
  • 27
  • phone system
  • 3
  • 27
  • telephone adapter
  • 3
  • 27
  • packet switching
  • 3
  • 27
  • work cell
  • 3
  • 27
  • soft client
  • 3
  • 27
  • service provider
  • 3
  • 27
  • internet connection
  • 3
  • 27
  • related article
  • 3
  • 27
Result 28
TitleThe history of VOIP and internet telephony | BDM-Voice
Urlhttps://www.bdm-voice.co.uk/the-history-of-voip/
DescriptionThis article covers: History of VoIP, The Humble Beginnings, How was VoIP Created, VoIP Today and Why Your Business Needs VoIP
Date
Organic Position27
H1
H2The history of VOIP and internet telephony
What is VoIP
The humble beginning of VoIP
How VoIP Works
Here's how VoIP was created
The Rising Popularity of VoIP
VoIP today
The Future of VoIP
Why your Business needs VoIP
H3Related articles
H2WithAnchorsThe history of VOIP and internet telephony
What is VoIP
The humble beginning of VoIP
How VoIP Works
Here's how VoIP was created
The Rising Popularity of VoIP
VoIP today
The Future of VoIP
Why your Business needs VoIP
Bodyrc="https://www.googletagmanager.com/ns.html?id=GTM-5QG8CX" height="0" width="0" style="display:none;visibility:hidden"> Skip to content The history of VOIP and internet telephony . VoIP If you’ve ever made a call over the Internet, then you’ve used VoIP — which stands for Voice over Internet Protocol. VoIP technology is widely used and has drastically improved the way we communicate today. This extremely valuable technology has humble beginnings that revolutionized telecommunications.Read on to learn more about the history and benefits of VoIP.What we will cover:What is VoIP?The Humble Beginnings of VoIPHow VoIP worksHere’s How VoIP Was CreatedThe Rising Popularity of VoIPVoIP TodayWhy Your Business Needs VoIP What is VoIP. In simple terms, VoIP converts a traditional voice signal into a digital signal that travels through the Internet. VoIP technology uses packet-switched protocols, meaning it transmits the caller and the receiver’s network addresses and voice signals into packets.One of the biggest advantages of choosing VoIP over a traditional legacy network is that VoIP offers companies the ease of integrating their phone and data services under their existing network.The VoIP systems of today use a traditional telephone line hooked up to an Internet connection allowing users to call any telephone number. The humble beginning of VoIP. Before getting into how VoIP started, it is important to acknowledge two fundamental technologies that came first: the telephone and the Internet.The first telephone call was on March 10, 1876 by the gadget’s inventor Alexander Graham Bell. Fast forward 100 years to 1976, and the cost associated with making a long distance call was still an extremely expensive commodity. That’s because traditional telephone systems were run through costly analogue networks. It was the development of the Internet that truly revolutionised the scope of communications. Experts at the time accurately predicted how computers and the Internet would, more than any of its predecessors, set the stage for global integration capability and the mass dissemination of information.The concept of using your computer to make voice calls first originated in the early 1990s when hobbyists began tinkering around with the idea as a way for PC users to avoid expensive long distance telephone calls.In the early years of VoIP technology, both callers were required to have a computer equipped with the same software, a sound card and a microphone. These VoIP applications were also riddled with a variety of problems including poor audio quality and connectivity issues. Still, this moment opened the doors of promise, with small players and big brands researching and investing on ways to use VoIP technology to enhance business communications.The major breakthrough in the world of VoIP began in 1995 when major hardware manufacturers started developing functionalities that previously had to be handled by a computer’s CPU. One primary example is the act of “switching,” which is the process of changing a voice data packet into something that could be read by the telephone network and vice versa. Once this function was able to be replicated using external devices, VoIP hardware became less computer dependent and more affordable. This opened the door for larger companies to implement VoIP on their internal IP networks. How VoIP Works. VoIP offers an alternative to the electrical signal sent by traditional phone lines, and instead creates a digital signal that can be sent online.In a nutshell, VoIP takes an analog voice call and transmits it over a digital network. Commonly referred to as IP telephony (IPT), VoIP eliminates the need for a traditional analog phone line and has become second nature in business today. While the Internet isn’t always necessary when it comes to using VoIP, the technology utilizes the same protocols or rules that the Internet uses to communicate.To keep things simple, think of VoIP as a sophisticated version of the technology you use to record a voice memo on your computer. When you record a voice on the computer it sends a limited frequency range and uses simple CODECs to convert analog signals to digital audio. The computer might also compress the voice file so it takes up less space.For VoIP, the process is the same, but the CODECs are more sophisticated, compressing the file for bandwidth.After the audio is recorded by the computer, the audio samples are collected into groups and placed into data packets for transmission over the IP Network.According to VoIP experts, a single data packet contains ten or more milliseconds of audio, with 20 and 30 milliseconds being the most common. Here's how VoIP was created. The man responsible for transforming the telecommunications industry through the creation of VoIP technology is Israeli businessman Alon Cohen. In 1989, Cohen founded VocalTec Inc. He would later invent the audio transceiver that laid the framework to make VoIP possible.VocalTec is hailed as the pioneer of VoIP after launching the world’s first VoIP commercial application in 1996.“You could just download it; you didn’t need to buy any hardware,” Cohen explained.“Then suddenly it all became clear. All the technologies we created initially, to deal with packet loss and jitter, all that was needed to make this work. Without these, it would not work at all.”The clunkiness, however, of the early VoiP technology restricted its widespread use. Communicating with users that received service from other providers or using traditional phone lines was a major drawback.Imagine today having a cell phone where you could only make calls to people who have the same provider as you. Want to call you doctor on a landline? Not possible. Want to reach a contact who uses a different provider? You can’t do that either.When you think of early VoIP in those terms and apply it to your business, the inconvenience of the service is glaring.With international calls, costs and labour also greatly increased.If, for instance, you were located in the United Kingdom and you wanted to use a VoIP provider to connect calls between the United Kingdom and the United States, the provider would be required to set up and maintain hardware in both markets. The Rising Popularity of VoIP. Over the past 20 years, VoIP has evolved from being a technological luxury to becoming a vital role in business.Here are some of the factors that contributed to VoIP’s rise to the top of business communications:1. No Landline There is no requirement for a business to have a landline. While landlines restrict call centres to one location, the pricing and accessibility of a VoIP system dominates over the conventional method in every aspect.2. Free Long Distance Calls When it comes to large companies, international calls can eat into a large portion of the spending budget. VoIP is much more cost effective and long distance and international calls are either extremely low-priced or even free depending on your VoIP service.3. Always Connected For the past decade remote work has been on the rise for many reasons. First, technology like VoIP has made it easier for remote workers to feel connected. Remote work also is proven to increase productivity and decrease overall costs. 4. VoIP Call Routing There are an array of services offered through VoIP phone providers that you would not receive with a traditional phone service. One of the most popular features is call routing. With call routing enabled, the incoming call will be transferred to several numbers before going to your voicemail for instance the office or your cell phone.5. Mainstream Adaptation of VoIP In its early surveys about technology use in 2000, the Pew Research Center’s Internet Project found about half of American adults used the internet, with only a tenth of those internet users placed phone calls using the internet. In 2012, when over 80% of Americans were internet users, the Project found that 30% of them had placed online phone calls.6. Call Monitoring VoIP also makes call monitoring extremely easy. This allows companies to monitor inbound and outbound calls for the specific purpose of checking the standard of employees handling of calls. This essentially helps you understand how your business is performing in its customer service or sales calls versus your ideal criteria for these calls. VoIP today. When it comes to VoIP today, it’s current growth can best be compared to the Internet boom of the early 1990s. As savvy business owners learn more about the many advantages of using in their business, VoIP technology is providing more innovative service for a more cost efficient price.The ultimate goal in any major business is to provide a product or service to a customer. That’s why successful companies are constantly striving to improve working to seek out all of the technological resources available to ensure superior client interaction. With its various features, a standard VoIP can play a key role in training, evaluations, and making improvements in overall customer service. The Future of VoIP. The rise in hacking and new developments in blockchain technology has made security a priority for VoIP companies. This will continue in the future of VoIP, adapting to new technologies and anticipating the needs of the client.The fifth-generation of mobile technology known as 5G technology is expected to cater to the demand and business frameworks needed by and beyond 2020. VoIP providers are already researching ways to integrate this technology.With remote working on the rise in the UK, 5G will be a game-changer. Why your Business needs VoIP. As previously mentioned, VoIP has numerous benefits which are frequently causing businesses of all sizes to switch to this technology.Here are a few of the top reasons companies are switching to VoIP.1. Easy Expansion If your company has a clear projection of future growth but doesn’t want to forfeit the budget for a major telephone installation in the present, VoIP is an excellent investment. VoIP’s plug-and-play capabilities make it perfect for increasing the amount of telephones in your office. VoIP allows for the scaling of handsets to suit the present requirements alone.2. Improved Call Quality You need a decent, reliable internet connection to get calls through on VoIP. But, the more basic your connection, the lower the quality of your calls will be. If you want to start increasing your call quality, you need to look at increasing the quality of your internet connection.Simply put; the better your data connection, the better your calls will be. A higher-speed connection will result in a clearer line.So, what is the best data connection for VoIP? Ethernet probably takes this one. This is because Ethernet is notoriously reliable. The bandwidth is not contended, which makes the connection ultra-fast. When you are transferring voice packets, you definitely want speed and reliability on your side.3. Built in Backup Plan Another definite benefit of VoIP is that its plug-and-play simplicity gives your business some welcome peace of mind. VoIP systems have automatic detection, allowing for any issues in the system to be discovered immediately.Plus, with the ability to easily re-route calls, you can rest assured that your business numbers will always be reachable – even in a crisis. Looking to find out if VoIP technology is right for you? Here are some questions to ask yourself: Do I want to save money on my monthly phone charges?Do I want a system with a clear and effective disaster recovery plan?Is scalability important to my business, either now or in the future?Do I want to make adding features to my phone system simple?If you need any help getting started with VoIP or want to find out what the best solutions for your business are, be sure to contact BDM Voice today. Contact Us Today Why the time is now to tackle ISDN switch-off 6 Benefits of Call Tracking Related articles . 5 Signs Your Phone System…Univerge Blue is HereVoIP Business Phone System –…All your questions on VOIP…ISDN switch off is happening,…Why the time is now…All your questions on VOIP…Toll Fraud InfographicCase Study – GDI coolingInsight into business phone systems
Topics
  • Topic
  • Tf
  • Position
  • voip
  • 74
  • 28
  • call
  • 32
  • 28
  • technology
  • 19
  • 28
  • business
  • 19
  • 28
  • internet
  • 18
  • 28
  • phone
  • 14
  • 28
  • voice
  • 11
  • 28
  • computer
  • 10
  • 28
  • system
  • 10
  • 28
  • voip technology
  • 9
  • 28
  • service
  • 9
  • 28
  • telephone
  • 9
  • 28
  • today
  • 8
  • 28
  • traditional
  • 8
  • 28
  • company
  • 8
  • 28
  • network
  • 7
  • 28
  • connection
  • 7
  • 28
  • provider
  • 7
  • 28
  • cost
  • 6
  • 28
  • work
  • 6
  • 28
  • signal
  • 6
  • 28
  • packet
  • 6
  • 28
  • data
  • 6
  • 28
  • early
  • 6
  • 28
  • audio
  • 6
  • 28
  • rise
  • 5
  • 28
  • user
  • 5
  • 28
  • quality
  • 5
  • 28
  • major
  • 5
  • 28
  • plug
  • 4
  • 28
  • long distance
  • 4
  • 28
  • phone system
  • 4
  • 28
  • landline
  • 4
  • 28
  • remote
  • 4
  • 28
  • internet voip
  • 3
  • 28
  • humble beginning
  • 3
  • 28
  • business voip
  • 3
  • 28
  • voip system
  • 3
  • 28
  • data packet
  • 3
  • 28
  • traditional phone
  • 3
  • 28
  • phone line
  • 3
  • 28
  • international call
  • 3
  • 28
  • call routing
  • 3
  • 28
Result 29
TitleVoIP - How it works and Why it is Better for Your Business
Urlhttps://aircall.io/blog/customer-happiness/how-voip-works/
DescriptionThe science behind VoIP is complex, but we at Aircall want to help you gain a better understanding of how it works, and why it makes sense to use VoIP technology for your business phone
Date4 Dec 2018
Organic Position28
H1How VoIP Works, and Why it’s Better for Your Business
H2Business Telephony Before VoIP
How VoIP Works
Connecting VoIP Phones to Classic Phones and Phone Numbers
Why VoIP is Better for Your Business
H3Quick Links
Internet Protocol Makes International Calls Cheaper
VoIP Software is Mobile
VoIP Increases Agent Knowledge and Productivity
H2WithAnchorsBusiness Telephony Before VoIP
How VoIP Works
Connecting VoIP Phones to Classic Phones and Phone Numbers
Why VoIP is Better for Your Business
BodyHow VoIP Works, and Why it’s Better for Your Business Back to blog by Daniel Weiss 4 December 2018 View Customer Stories Share: You may not be aware of it, but the world of telephony is undergoing a drastic transition: From classic phone technology to voice over internet protocol (VoIP). At Aircall, it’s our duty as professionals working in this space to help you understand how this technology works, and why it’s better for your business on the whole. The underlying technology behind VoIP phone calls is technically complicated, but if you’re able to understand how it works from a high level, it’s easy to see the benefits. Quick Links. Business Telephony Before VoIP How VoIP Works Connecting VoIP Phones with Classic Phones (and Phone Numbers) Why VoIP is Better for Businesses  Business Telephony Before VoIP. Phones are great because they take human voice, convert it into electrical signals, transmit those electrical signals at near light-speed over vast distances, and revert them back into an intelligible voice. It makes nearly instant communication possible despite remote locations and vast distances. But as recently as 15 years ago, long-distance calls were very expensive. That’s because your voice was traveling through a network of copper wires. Ready to build better conversations? Simple to set up. Easy to use. Powerful integrations. Try for free During these analog telephone calls, your voice was traveling through a switched telephone network. When you were on the phone, the wires transmitting your call were dedicated exclusively to your conversation. For example, when you called someone long distance in New York from Los Angeles, you were essentially “renting” 2,000 miles of wiring. Competition for these wires let phone companies drive up the cost of long-distance phone calls. How VoIP Works. VoIP uses the “everywhere, all the time” potential of internet protocol to achieve the same end result, albeit in a different way. When you speak into your computer’s microphone, your voice is detected as physical sound waves and converted into an electrical signal using a piece of hardware called a driver.  Then, pieces of software known as voice codecs (coder-decoders) convert this electrical signal into binary data. From here, your operating system separates binary data into smaller pieces of information known as packets. These packets of audio information are transmitted… from your computer via the router through copper or fiber optic cables across the world to another computer reverse processed via that computer’s codec… … back into what you recognize as words. Furthermore, analog telephone technology had to send information in a relatively slow, linear fashion. The internet can send these packets much faster by doing so in any order, known as packet switching. Packets are reassembled in the correct order when they arrive at their destination (your IP address). This increases the speed of delivery over analog telephones and reduces costs since no exclusive wire has to be designated. Connecting VoIP Phones to Classic Phones and Phone Numbers. VoIP to VoIP only describes a specific type of voice conversation where an internet-connected device knows it’s calling another internet connected device. Examples of this include Facetime Audio and Google Calls. In order for VoIP software to call an analog phone (landline) or cell phone (that is to say, any phone with an actual number), additional steps must be taken. Programming specifics and scientific language aside, VoIP software can do this by directing calls through carrier companies like Voxbone, Twilio, Plivo, etc. These companies have physical “Points Of Presence” around the globe that receive web-based audio packets (using a protocol known as WebRTC), convert them into the type of signal acceptable to classic phones (known as SIP), and vice-versa. If a call coming from a VoIP phone needs to be directed to a cell phone or landline, these carriers fulfill that function. The same process occurs when an analog phone calls a VoIP software. These carriers sell telephone numbers which are associated with VoIP phones, making them accessible via classic phones as well. Carriers must process all calls to internet protocol phones affiliated with a “real” phone number. So long as phones and phone numbers are the preferred means of voice communication, this is necessary. Why VoIP is Better for Your Business. Internet Protocol Makes International Calls Cheaper. VoIP phone systems avoid the exorbitant pricing of traditional phone services by using packets and internet protocol instead of analog telephone lines (copper wire). Digital signals sent via broadband avoid “rental” costs typically associated with long-distance PSTN phone calls. VoIP Software is Mobile. Switching to VoIP also allows for much greater mobility in the workplace. The desk phone (as an anchor) is a thing of the past. Plus, internet protocol technologies are accessible via any internet-connected device, so remote work is also possible. VoIP Increases Agent Knowledge and Productivity. Finally, VoIP telephony can be intricately connected to your other cloud-based technologies. Unified communications solutions — like customer management, sales, chat, and email tools — are just the beginning. This connectivity makes for better tracking, informed conversations, and a more productive workforce. For more on VoIP phone software and unified communications, check out these other articles on the Aircall blog. Share: Ready to build better conversations? Simple to set up. Easy to use. Powerful integrations. Try for free The phone system for modern business Solutions Call Center Support Sales Phone System Ecommerce Non-profits Product Integrations Quality and reliability Apps Pricing Country coverage Request a demo Features PowerDialer IVR Call Routing Call Center Analytics CTI Integration Click to Dial Resources Blog Knowledge Base Customer Stories Partner Stories Become a Partner Build an Integration VoIP Documentation Glossary Speed Test Company Contact Us About Us Careers We're hiring Press Uptime Brand © Aircall Sitemap
Topics
  • Topic
  • Tf
  • Position
  • phone
  • 32
  • 29
  • voip
  • 27
  • 29
  • call
  • 16
  • 29
  • internet
  • 10
  • 29
  • voice
  • 9
  • 29
  • voip phone
  • 8
  • 29
  • business
  • 7
  • 29
  • protocol
  • 7
  • 29
  • packet
  • 7
  • 29
  • internet protocol
  • 6
  • 29
  • computer
  • 6
  • 29
  • work
  • 6
  • 29
  • technology
  • 6
  • 29
  • number
  • 6
  • 29
  • signal
  • 6
  • 29
  • distance
  • 6
  • 29
  • analog
  • 6
  • 29
  • telephone
  • 6
  • 29
  • software
  • 6
  • 29
  • classic phone
  • 5
  • 29
  • classic
  • 5
  • 29
  • long
  • 5
  • 29
  • wire
  • 5
  • 29
  • conversation
  • 5
  • 29
  • integration
  • 5
  • 29
  • phone call
  • 4
  • 29
  • phone phone
  • 4
  • 29
  • phone number
  • 4
  • 29
  • electrical signal
  • 4
  • 29
  • long distance
  • 4
  • 29
  • analog telephone
  • 4
  • 29
  • voip software
  • 4
  • 29
  • telephony
  • 4
  • 29
  • electrical
  • 4
  • 29
  • communication
  • 4
  • 29
  • company
  • 4
  • 29
  • system
  • 4
  • 29
  • connected
  • 4
  • 29
  • carrier
  • 4
  • 29
  • phone phone number
  • 3
  • 29
  • phone call voip
  • 3
  • 29
  • internet connected device
  • 3
  • 29
  • voip work
  • 3
  • 29
  • number voip
  • 3
  • 29
  • call voip
  • 3
  • 29
  • internet connected
  • 3
  • 29
  • connected device
  • 3
  • 29
  • phone system
  • 3
  • 29
  • device
  • 3
  • 29
Result 30
Title
Url
Description
Date
Organic Position29
H1
H2
H3
H2WithAnchors
Body
Topics
  • Topic
  • Tf
  • Position