Self-hosted Communication - SIP

SelfHostHub lists 13 open-source SIP projects you can host on your own server. The most-starred on GitHub are FreeSWITCH (5,232 stars), Asterisk (3,630 stars) and Kamailio (2,976 stars). 3 of them document a Docker install, and 2 offer a live demo you can try first.

Feature your project here

FreeSWITCH

5.2k

Scalable open source cross-platform telephony platform.

Communication - SIPMPL-2.0

Asterisk

3.6k

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

Communication - SIPGPL-2.0

Kamailio

3.0k

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

Communication - SIPGPL-2.0

SIPCAPTURE Homer

2.0k

Troubleshooting and monitoring VoIP calls.

Communication - SIPAGPL-3.0

Routr

1.7k

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

Communication - SIPMIT

openSIPS

1.5k

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

Communication - SIPGPL-2.0

FusionPBX

1.1k

Web interface for multi-platform voice switch called FreeSWITCH.

Communication - SIPMPL-1.1

Flexisip

191

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.

Communication - SIPAGPL-3.0

3CX

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

Communication - SIP⊘ Proprietary

Freepbx

Web-based open source GUI that controls and manages Asterisk.

Communication - SIPGPL-2.0

SIP3

VoIP troubleshooting and monitoring platform.

Communication - SIPApache-2.0

Wazo

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

Communication - SIPGPL-3.0

Yeti-Switch

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

Communication - SIPGPL-2.0

How to choose self-hosted SIP software

Check project health. Stars show popularity, not maintenance. Open the source repository and look at recent commits and releases.
Match the licence to your use. 8 use a GPL-family licence (copyleft, including AGPL) and 4 use a permissive licence such as MIT, Apache-2.0 or BSD. AGPL matters if you modify the software and offer it to others over a network.
Pick a stack you can run. The most common platforms here are C (5), Docker (3), deb (2) and PHP (2). Docker is usually the easiest path for a home server or VPS.
Try before you migrate. Use a live demo where one exists (2 here), or a throwaway container first, and confirm it can import your existing data before switching.

Frequently asked questions

What is the most popular self-hosted SIP software?

By GitHub stars, the top projects in this category are FreeSWITCH (5,232 stars), Asterisk (3,630 stars) and Kamailio (2,976 stars).

How many open-source SIP tools are listed?

13 projects are currently listed in the SIP category on SelfHostHub.

Which licences do self-hosted SIP projects use?

The most common licences in this category are GPL-2.0 (5), AGPL-3.0 (2) and MPL-2.0 (1).

Can I run these SIP tools with Docker?

3 of the 13 projects list Docker as a supported platform. Check each project's documentation for the exact install steps.