As Broad as It’s Long- Two Mighty VoIP Development Platforms Asterisk and FreeSWITCH

Updated on: 30 Nov, 2021

In the realm of VoIP technology, two powerful platforms have been ruling since their inception. One is an age-old Asterisk and the other is younger FreeSWITCH. Both have a plethora of enterprise-friendly features to facilitate customized VoIP software development for addressing business communication requirements. Though both the platforms are capable of simplifying all the complexities of unified communication, it is interesting to go through the characteristics that make them distinct from each other.


Let’s start with the trusted platform for a long time. Asterisk is a  software-based PBX (Private Branch Exchange) solution, which can provide the required functionality for any VoIP product. As one of the first software-based, open-source solutions, Asterisk has a large user base in over 170 countries with over a million Asterisk-based systems in use.

Asterisk can satisfy much of VoIP requirements, but the platform is slightly lag behind in scalability. The number of concurrent calls that the Asterisk solution could originally handle is somewhat limited. Otherwise, the platform can offer an excellent and reliable VoIP experience through easy integration with a business communication system.

Asterisk platform has a dual license GNU GPL and proprietary. The Asterisk development base is larger and more mature as compared to its peers. The framework is highly suitable for specific applications like software PBX, hosted PBX, and the like.


It is a relatively new and more versatile platform for emerging VoIP applications. The FreeSWITCH development is an alternative solution to Asterisk and it uses the modular approach to produced improved stability and enhanced scalability over multiple platforms.

The FreeSWITCH framework is built upon a state-machine model and its building blocks are open source components like SIP open source. It is a vibrant platform and various features can be integrated into customized FreeSWITCH solutions with ease.

FreeSWITCH platform has a Mozilla public license and it has a growing development base with higher scalability to address ever-changing communication requirements. Video conferencing solutions and voice mail solutions can be developed using this platform. The platform can also be used as a stand-alone platform unlike Asterisk, which has two licensing options.

Which one is the right platform?

The answer to this question is completely based on your VoIP communication requirements. It is always better to know each software’s possibilities and limitations. Entrepreneurs can know the benefits of FreeSWITCH development and Asterisk development from experienced developers. But, it is fair to mention that Asterisk is more suitable for addressing specific and traditional PBX requirements, while FreeSWITCH offers more possibilities beyond VoIP telephony. In other words, an Asterisk is a right tool for a traditional VoIP solution and FreeSWITCH is a preferred choice for a diverse VoIP solution.

At Ecosmob, we have a pool of talented and experienced VoIP solution developers who are well-versed in using the latest technology trends in both Asterisk and FreeSWITCH. We have served our global clientele with the best-in-class VoIP software development. You can consult our expert business consultants to find the most suitable platform to fulfill your unified communication requirements at the workplace.