Asterisk is an open-source framework for building communications applications. It turns an ordinary computer into a communications server.
Best OpenSIPS Alternatives ranked by AI · updated May 2025
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OpenSIPS is an open-source SIP proxy server for voice, video, and other communications.
Price: Free
Top 3 OpenSIPS alternatives
Kamailio is an open-source SIP server that is used for building real-time communication applications.
FreeSWITCH is a scalable open-source cross-platform telephony platform designed to route and interconnect popular communication protocols using audio, video, text, or any...
Pros
- Scalable
- Flexible
- Rich feature set
Cons
- Configuration complexity
- Documentation could be improved
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