FreeSWITCH is a Software Defined Telecom Stack enabling the digital transformation from proprietary telecom switches to a versatile software implementation that runs on any commodity hardware. From a Raspberry PI to a multi-core server, FreeSWITCH can unlock the telecommunications potential of any device.
Kamailio - The Open Source SIP Server for large VoIP and real-time communication platforms, focusing on flexibility, security and scalability
| Metric | freeswitch | kamailio |
|---|---|---|
| Stars | 4,887 | 2,910 |
| Forks | 1,768 | 1,120 |
| Open Issues | 1,165 | 27 |
| Language | C | C |
| License | NOASSERTION | NOASSERTION |
| Last commit | 4mo ago | 4d ago |
| Repo age | 7.8y | 12.7y |
| Activity score | 65/100 | 85/100 |
freeswitch has 1.7× more stars (4,887 vs 2,910).
kamailio was updated more recently (107d ago vs 4d ago).
kamailio is more established (12.7y vs 7.8y old).
Both are primarily written in C.
