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SIP Servers and Proxies

Open source implementations of Session Initiation Protocol (SIP) servers, proxies, and related infrastructure for VoIP, video conferencing, and other real-time communication applications.

The Linux Foundation

by The Linux Foundation

5 projects ・ Updated 14 Mar 2025

Project
Contributors
Organizations
Software value
Janus WebRTC Server
1,936
325
$4M
Kamailio
1,714
193
$46M
OpenSIPS
1,090
88
$25M
Asterisk
904
111
$32M
libre
151
23
$2.9M
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