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VoIP (Voice over Internet Protocol) is one of the buzz words in all industries all across the world. The reason behind its popularity is the innovative VoIP solutions one may get by the expert VoIP development services. These VoIP solutions are generally used to fulfill one or more needs related to communication and collaboration. The VoIP development based communication and collaboration solutions often have more features than the traditional communication systems as well as one can gain save significant amount of money on the communication. The popularity and benefits of VoIP based communication and collaboration solutions have attracted many people to know more about VoIP and VoIP development. In this article, I will share about VoIP development technologies which are most commonly used by the VoIP development service provider companies and individual developer.

Top 5 VoIP Development Technologies Are Listed below:

  • Asterisk
  • FreeSWITCH
  • WebRTC
  • Kamailio
  • OpenSIPs

These are the top 5 and most widely used VoIP development technologies. Let’s have brief of each:


It is in existence since 1999 and in December 2018 Asterisk 16.1.1 version is released. It is an open source telephony software which is filled with a wide array of PBX (Private Branch Exchange) features. It supports all different codecs, media gateways and protocols. Thus, it can be used for any type of VoIP development project with an aim to build a reliable VoIP solution.


It is also an open source VoIP development solution and it is in existence since 2006. The latest version of the FreeSWITCH is released in January 2019 and it is named as FreeSWITCH 1.8.5. It is also a Private Branch Exchange Solution. It is most appreciated for its capacity of handling multiple calls in parallel. Thus, it is very useful in developing wholesale VoIP solutions.


The first version of WebRTC was released in 2011 by one of the companies bought by Google. It is devoted to browser to browser calling and that’s why the VoIP development companies use the WebRTC based solutions to build browser based real time and remote communication solutions. The most stable version of WebRTC is released in May 2018.


OpenSER is the original name of Kamailio. Since 2002 Kamailio is in existence and it was launched with name OpenSER. Here SER stands for SIP Express Router. In 2008, the OpenSER renamed to Kamailio. The Kamailio is a SIP Server and it can be used to develop server based VoIP solutions with expert VoIP development.


It was a part of OpenSER. It parted its ways from OpenSER in 2001 and launched an independent open source solution, called, OpenSIPs. It is used by the VoIP development companies to build VoIP solutions with multiple channels, such as, voice, SMS, video, etc. It can build robust communication solutions which can withhold the quality even in too much of call load. Thus, it is also used as load balancer by the VoIP Development companies.

These are the top 5 VoIP development technologies and their brief to take you closer to the world of VoIP technologies.

Author Bio

Sandip Patel – BDE
Author works as BDE at Vindaloo Softtech (VSPL) since 2016. Sandip has 10+ years of work experience in VoIP Software Development Industry. VSPL is VoIP software development and solutions provider that offers FreeSWITCH, Kamailio, OpenSIP, WebRTC and Asterisk Development.