Self-hosted Communication - SIP software

SIP/IPBX telephony software.

13 apps, ranked by GitHub stars weighted by maintenance health.

Alternatives to Discord

FreeSWITCH

Scalable cross-platform telephony platform.

Actively maintained ★ 5.3k MPL-2.0 ~$3.5/mo

Asterisk

Easy to use but advanced IP PBX system, VoIP gateway and conference server.

Actively maintained ★ 3.7k GPL-2.0 ~$3.5/mo

Kamailio

Modular SIP server (registrar/proxy/router/etc).

Actively maintained ★ 3k GPL-2.0 ~$3.5/mo

SIPCAPTURE Homer

Troubleshooting and monitoring VoIP calls.

Actively maintained ★ 2k AGPL-3.0 🐳 Docker~$5/mo

Routr

Lightweight SIP proxy, location server, and registrar for a reliable and scalable SIP infrastructure.

Actively maintained ★ 1.7k MIT 🐳 Docker~$5/mo

openSIPS

SIP proxy/server for voice, video, IM, presence and any other SIP extensions.

Actively maintained ★ 1.5k GPL-2.0 ~$3.5/mo

FusionPBX

Web interface for multi-platform voice switch called FreeSWITCH.

Actively maintained ★ 1.1k MPL-1.1 ~$5/mo

Flexisip

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.

Actively maintained ★ 193 AGPL-3.0 🐳 Docker~$3.5/mo

3CX

Full-featured PABX system, with call queues, built-in web conferencing, live chat and social media messaging all on one system.

Health unknown ⊘ Proprietary ~$5/mo

Freepbx

Web-based GUI that controls and manages Asterisk.

Health unknown GPL-2.0 ~$5/mo

SIP3

VoIP troubleshooting and monitoring platform.

Health unknown Apache-2.0 ~$10/mo

Wazo

Full-featured IPBX solution built atop Asterisk with integrated Web administration interface and REST-ful API.

Health unknown GPL-3.0 ~$5/mo

Yeti-Switch

Transit class4 softswitch(SBC) with integrated billing and routing engine and REST API.

Health unknown GPL-2.0 ~$5/mo