FreeSWITCH is #14 in Top 10 Business Phone systems

https://signalwire.com/freeswitch
FreeSWITCH
FreeSWITCH is a free and open-source telephony software for real-time communication protocols using audio, video, text and other forms of media.

Positions in ratings


#14 in Top 10 Business Phone systems

Alternatives


The best alternatives to FreeSWITCH are: Asterisk, FreePBX, FusionPBX, 3CX