Best self-hosted Communication - SIP apps

SIP/IPBX telephony software.

13 open source Communication - SIP tools you host on your own server — with full control of your data and no per-user cost.

FreeSWITCH

★ 4,950

Scalable open source cross-platform telephony platform.

Communication - SIP MPL-2.0

Asterisk

★ 3,316

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

Communication - SIP GPL-2.0

Kamailio

★ 2,855

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

Communication - SIP GPL-2.0

SIPCAPTURE Homer

★ 1,975

Troubleshooting and monitoring VoIP calls.

Communication - SIP AGPL-3.0

Routr

★ 1,688

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

Communication - SIP MIT

openSIPS

★ 1,482

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

Communication - SIP GPL-2.0

FusionPBX

★ 1,014

Web interface for multi-platform voice switch called FreeSWITCH.

Communication - SIP MPL-1.1

Flexisip

★ 185

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 - SIP AGPL-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 - SIP GPL-2.0

SIP3

VoIP troubleshooting and monitoring platform.

Communication - SIP Apache-2.0

Wazo

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

Communication - SIP GPL-3.0

Yeti-Switch

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

Communication - SIP GPL-2.0

Frequently asked questions

What are the best self-hosted Communication - SIP tools?

Among the 13 options, the most popular include FreeSWITCH, Asterisk, Kamailio. Compare license, platform and popularity in the list below.

Is there a free open source alternative for Communication - SIP?

Yes — all 13 tools on this page are open source and you run them on your own server, with no monthly fee.

Where can I host a Communication - SIP app?

On a home server (homelab) or a cheap VPS from ~€4/mo. See the suggestions on this page.