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.

AGPL-3.0Chat & calls
GitHub stars
190
License
AGPL-3.0
Last commit
12 October 2026
Runs on
C, Docker

Commits per month, last 12 months

250 commits

How to self-host Flexisip

Flexisip runs on C and Docker. The project's own install guide is the place to start; most people put it on a small server with Docker and a reverse proxy for HTTPS.

  1. Get a server: a home server, a VPS, or a managed app host.
  2. Install it the way the project's docs describe, usually with Docker Compose.
  3. Put it behind HTTPS and set up backups before you add real data.
  4. Update it regularly. Watch the project's releases.

New to self-hosting? Start with the beginner's guide.

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Questions

Is Flexisip free?

Yes. Flexisip is open source under the AGPL-3.0 license, so you can use it without paying for a license. You pay only for the server it runs on.

Can I self-host Flexisip?

Yes. Flexisip runs on C and Docker. Follow the install guide in the project's documentation, or use a host that installs it for you.

Is Flexisip still maintained?

The last change to Flexisip's code was on 12 October 2026, with 250 commits in the last 12 months.

Topics

Communication - SIP

App data from awesome-selfhosted (CC BY-SA 3.0), stars and activity from GitHub.