openSIPS
SIP proxy/server for voice, video, IM, presence and any other SIP extensions.
Description from awesome-selfhosted (CC BY-SA 3.0)
Still maintained? Yes: 401 commits in the last 90 days.
Also an alternative to Twilio.
At a glance
openSIPS quick facts
- Health score
- 58/100 SLOWING
- Stars
- 1,545
- Last commit
- yesterday (Oct 2026)
- Latest release
- No tagged release
- Licence
- GPL-2.0
Top alternatives to openSIPS
Full rankings: Twilio alternatives
In its own words
The project's README opens: "OpenSIPS is a GPL licensed SIP server implementation. It started as a fork of Fokus Fraunhofer SIP Express Router (SER) project. OpenSIPS wants to be a more open project, not only from license point of view, but more open as project management, especially for external contributions."
Why it ranks here
Health score explained
openSIPS scores 58/100, #9 of 13 in Communication - SIP: 401 commits in the last 90 days earn 35.0 of 35 points, the absence of a tagged release forfeits all 25 release points, 1,545 stars add 12.8 of 20, an active, unarchived repository keeps 10 and no advertised Docker image leaves the final 10 unclaimed. That places it in the slowing band (40 to 69). The biggest shortfall is release recency, worth 25.0 more points.
Recomputed nightly from the GitHub API. How the score is calculated.
Health over time
- Commit activity 35.0 / 35
401 commits in 90 days (30+ scores full marks)
- Release recency biggest shortfall 0.0 / 25
No tagged release found
- Stars 12.8 / 20
1.5k stars on GitHub (logarithmic)
- Not archived 10.0 / 10
Repository is active
- Docker support 0.0 / 10
No Docker support advertised
Commit activity
- 401
- Last 90 days
- 1,305
- Last 12 months
- yesterday
- Last push
Ranked #9 of 13 tools in Communication - SIP by health , between Flexisip (#8) and SIP3 (#10) .
Details
| Licence | GPL-2.0 |
| Platforms | C |
| Latest release | No tagged release |
| Stars | 1,545 |
| Open issues | 268 |
| Docker | Not advertised |
| Repository | OpenSIPS/opensips ↗ |
openSIPS vs its top 5 alternatives
Active tools that share a comparison page or a category with openSIPS (Communication - SIP), scored on the same five terms.
| Tool | Health | Stars | Licence | Last commit |
|---|---|---|---|---|
| Routr | 93 | 1.7k | MIT | today |
| FreeSWITCH | 85 | 5.3k | MPL-2.0 | 2 days ago |
| Asterisk | 84 | 3.7k | GPL-2.0 | yesterday |
| Kamailio | 84 | 3k | GPL-2.0 | yesterday |
| FusionPBX | 82 | 1.1k | MPL-1.1 | yesterday |
| openSIPS (this tool) | 58 | 1.5k | GPL-2.0 | yesterday |
openSIPS: common questions
What does openSIPS replace?
Repoly lists openSIPS as an open-source alternative to Twilio. Each comparison page ranks every alternative by the same health score, so you can see where openSIPS stands against the others.
Is openSIPS still maintained?
openSIPS had 401 commits in the last 90 days and its last push was yesterday. Repoly recomputes this nightly.