Communication - SIP
Sorted by GitHub stars, which measures attention rather than fitness. Read the release date and the commit count next to it before picking one.
| Tool | Stars |
|---|---|
Scalable open source cross-platform telephony platform. MPL-2.0 · released 2026-08-28 | 5,137 |
Easy to use but advanced IP PBX system, VoIP gateway and conference server. GPL-2.0 · released 2026-08-27 | 3,512 |
Modular SIP server (registrar/proxy/router/etc). GPL-2.0 · released 2026-08-20 | 2,937 |
Troubleshooting and monitoring VoIP calls. AGPL-3.0 · released 2026-09-07 | 2,010 |
Lightweight SIP proxy, location server, and registrar for a reliable and scalable SIP infrastructure. MIT · released 2026-09-07 | 1,709 |
SIP proxy/server for voice, video, IM, presence and any other SIP extensions. GPL-2.0 · released unknown | 1,520 |
Web interface for multi-platform voice switch called FreeSWITCH. MPL-1.1 · released 2026-01-29 | 1,051 |
Complete, modular and scalable SIP server, includes a push gateway, to deliver SIP incoming calls or text messages on mobile device platforms where push notifications are required to receive information when the app is not active in the foreground. AGPL-3.0 · released unknown | 187 |
Full-featured PABX system, with call queues, built-in web conferencing, live chat and social media messaging all on one system. ⊘ Proprietary · released unknown | n/a |
Web-based open source GUI that controls and manages Asterisk. GPL-2.0 · released unknown | n/a |
VoIP troubleshooting and monitoring platform. Apache-2.0 · released unknown | n/a |
Full-featured IPBX solution built atop Asterisk with integrated Web administration interface and REST-ful API. GPL-3.0 · released unknown | n/a |
Transit class4 softswitch(SBC) with integrated billing and routing engine and REST API. GPL-2.0 · released unknown | n/a |
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