The only additional piece of equipment that you need is an Analog Telephone Adapter (also referred to as an ATA) that allows you to connect your existing telephone to your home Internet. This equipment is typically provided on a free lease basis from the home VoIP provider that you choose, or you can use you own device if you prefer. You can also use IP phone(s) instead of using the ATA with your existing analog phones. The sound quality is better but there is more up front cost as IP phones are more expensive than the ATA devices.
Mobile clients are softphones optimized for a particular mobile OS and for being used in mobile situations. This means they're designed to switch easily between different cell and wireless connections on the fly. This means you can let your employees use whatever the cheapest wireless connection around them happens to be—and often that can be free. They also let your employees use your company's phone system on their own devices.

Vonage Business is the biggest name in VoIP, and the good news is it’s a leader in residential VoIP too. Vonage has powerful, nationwide infrastructure, ensuring 100% uptime whenever you make or receive a VoIP call through your home IP phone or the Vonage smartphone app. All pricing packages are billed monthly, with no contracts. However, if you agree to be billed annually, Vonage will reward you with close to a 50% discount on your first 6 months.
Editors' note: Line2 is owned by J2 Global, the parent company of PCMag's publisher, Ziff Media Group. If you have questions you need answered about business VoIP, then remember to subscribe to PCMag's Small Business Newsletter and join the [email protected] business community on LinkedIn, and you can ask vendors, other professionals like yourself, and PCMag's editors.   
One of the most exciting and clear differences between a cloud PBX provider and a standard telephone system is software. Your IT staff will find a host of new software tools to help monitor and manage the system. But what catches most business operators' eyes are two key capabilities that software provides: back-end integration and softphones. The latter is exactly what the name implies, a phone that's rendered entirely in software allowing any compatible device to become a phone as long as it has an internet connection, a speaker, and a microphone. More on that below.
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 public Internet, rather than via the public switched telephone network (PSTN), also known as plain old telephone service (POTS).
Multiple Numbers on Demand – Building a multifaceted business phone service with any kind of localized number or vanity number. Whether it’s business VoIP solutions for small business, enterprise, or contact center, communications is only as strong as it is dynamic, with multiple numbers, all having specific assignments to fulfill. Some business Voice Over IP phone providers will offer these additional numbers for free, or an additional small monthly fee. Explore options to find out if a provider supplies key components beyond a local number such as toll-free numbers, virtual faxing, and virtual extensions.

1. The Microsoft 365 Business Voice service components of Domestic Calling Plan and Audio Conferencing are sold inclusive of all required taxes and fees, including 911 fees and other transactional taxes that typically apply to communication services in the U.S. The price includes these taxes and fees until June 30th, 2021. The Phone System component is sold tax exclusive and any applicable sales tax will appear as a separate charge in the U.S.


Michael Muchmore is PC Magazine’s lead analyst for software and Web applications. A native New Yorker, he has at various times headed up PC Magazine’s coverage of Web development, enterprise software, and display technologies. Michael cowrote one of the first overviews of Web Services (pretty much the progenitor of Web 2.0) for a general audience. Before that he worked on PC Magazine’s Solutions section, which in those days covered programming techniques as well as tips on using popular office software. Most recently he covered Web 2.0 and other software for ExtremeTech.com.

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 nationalising telecommunication service, it is a criminal offence to offer services using VoIP. The country has installed firewalls to prevent international calls being made using VoIP. These measures were taken after the popularity of VoIP reduced the income generated by the state owned telecommunication company.
Back-end integration with custom and third-party apps, like CRM systems, also open a whole new world for your calling data because now it can extend the phone system beyond just basic voice communication. Such integrations allows users to transfer calls to and from their mobile phone, place and receive calls from their personal phone (that appear to be coming from the business), and interact with colleagues and customers via voice and text -- all from a variety of devices. But it also allows recording and analysis of call data to measure things like customer satisfaction, understand your sales audience at a new level, and even handle customer requests and problems automatically without the customer ever being aware they never spoke to a human.

Types of Services offered Home VoIP, Business VoIP, SIP Trunking, International Calling Home VoIP, Business VoIP, International Calling Home VoIP, International Calling Plans Small Business VoIP, Residential VoIP, Reseller VoIP, Hosted PBX, Home VoIP, Business VoIP, International Calling Plans Home Phone Service, International Calling, Business Phone Service
The benefits of making the change permanently from a traditional landline phone to VoIP phone services can have a lasting effect — minimizing cost and maximizing customization. Turning your home into a fully integrated network, VoIP is the most economical and intelligent method of making phone calls. Doing away with your landlines means doing away with fees and long distance charges in favor of one low monthly rate. The sooner you do away with landline service, the sooner you’ll be enjoying more features for substantially less, saving hundreds of dollars a year. Make the switch, and leave those switchboards in the dust…you won’t regret it – Get VoIP!
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.[35] Originally, T.38 was designed to use UDP or TCP transmission methods across an IP network. UDP provides near real-time characteristics due to the "no recovery rule" when a UDP packet is lost or an error occurs during transmission.[36]
Michael Muchmore is PC Magazine’s lead analyst for software and Web applications. A native New Yorker, he has at various times headed up PC Magazine’s coverage of Web development, enterprise software, and display technologies. Michael cowrote one of the first overviews of Web Services (pretty much the progenitor of Web 2.0) for a general audience. Before that he worked on PC Magazine’s Solutions section, which in those days covered programming techniques as well as tips on using popular office software. Most recently he covered Web 2.0 and other software for ExtremeTech.com.
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.[16] 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.

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]
1. The Microsoft 365 Business Voice service components of Domestic Calling Plan and Audio Conferencing are sold inclusive of all required taxes and fees, including 911 fees and other transactional taxes that typically apply to communication services in the U.S. The price includes these taxes and fees until June 30th, 2021. The Phone System component is sold tax exclusive and any applicable sales tax will appear as a separate charge in the U.S.
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 public Internet, rather than via the public switched telephone network (PSTN), also known as plain old telephone service (POTS).
However, for many businesses there's a need to route calls to the PSTN and other analog phones that might remain in use, too. This may mean a PSTN gateway, or even a hybrid PBX, where there's at least a small telephone switch located on-site. Note that these days, a PBX looks exactly like the other servers in your data center, except with an attached means of handling local and analog phones. Many small businesses, however, are avoiding on-premises PBXes partially due to cost savings and partially because the capabilities offered by all-cloud systems are more than advanced enough for their needs. Some virtual cloud PBXes can handle PSTN connectivity without on-site hardware requirements.

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) which require QoS and which have negotiated a contract with the network controllers.
As always the best place to start is at the beginning! The following buttons provide access to some of our best guides and tools for getting started with VoIP. These articles give a great background into VoIP, help you understand all the basics, and answer most people questions. The VoIP/Speed test tool performs a test of your Internet connection and provides a great indication of how well VoIP will work at your home. We highly recommend running this test.
×