Kamailio - The Open Source SIP Server for large VoIP and real-time communication platforms, focusing on flexibility, security and scalability
OpenSIPS is a GPL implementation of a multi-functionality SIP Server that targets to deliver a high-level technical solution (performance, security and quality) to be used in professional SIP server platforms.
| Metric | kamailio | opensips |
|---|---|---|
| Stars | 2,910 | 1,504 |
| Forks | 1,120 | 667 |
| Open Issues | 27 | 294 |
| Language | C | C |
| License | NOASSERTION | NOASSERTION |
| Last commit | 2mo ago | 2mo ago |
| Repo age | 12.8y | 13.4y |
| Activity score | 71/100 | 68/100 |
kamailio has 1.9× more stars (2,910 vs 1,504).
Both are actively maintained (last commit 48d ago vs 55d ago).
Similar project age (12.8y vs 13.4y).
Both are primarily written in C.