Kamailio
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Kamailio | Open source; released under GPLv2 or any later version | Free |
As kamailio.org lists them, read 5 Oct 2026. The maker's own page has the final word.
Facts from Kamailio's own pages
- Communications features
- It supports SIMPLE instant messaging and presence, an embedded XCAP server, and an MSRP relay. · kamailio.org, 5 Oct 2026
- Control and monitoring
- The project lists JSON and XMLRPC control interfaces and SNMP monitoring. · kamailio.org, 5 Oct 2026
- Documentation
- The project provides documentation resources including module documentation, tutorials, installation guidance, and administrator and developer documentation. · kamailio.org, 5 Oct 2026
- Downloads
- The project provides Debian and Ubuntu packages through an APT repository, RPM packages for CentOS, Fedora, and OpenSUSE, and source downloads. · kamailio.org, 5 Oct 2026
- Extensibility
- The project describes a modular architecture with more than 150 modules in its source tree. · kamailio.org, 5 Oct 2026
- Founded
- 2001 · kamailio.org, 28 Sept 2026
- Integrations
- The project lists backend support including MySQL, PostgreSQL, Oracle, Radius, LDAP, Redis, Cassandra, MongoDB, and Memcached. · kamailio.org, 5 Oct 2026
- Platforms
- Kamailio runs on Unix and Linux systems, from embedded systems to large multi-core servers. · kamailio.org, 5 Oct 2026
- Project history
- The Kamailio project describes its collaboration process as starting on November 4, 2008, following development in the SIP Express Router, Open SER, and SIP Router projects. · kamailio.org, 5 Oct 2026
- Purpose
- Kamailio is open source SIP server software for building VoIP and real time communications platforms. · kamailio.org, 5 Oct 2026
- Routing
- Features include SIP forking, NAT traversal, load balancing, least cost routing, failover, and high availability replication. · kamailio.org, 5 Oct 2026
- Security
- Listed security features include Digest SIP user authentication, authorization through ACL or group membership, and IP and network authentication. · kamailio.org, 5 Oct 2026
- Server roles
- It can act as a SIP registrar, location server, proxy, application server, or redirect server. · kamailio.org, 5 Oct 2026
- Support
- Community support is offered free on a best effort basis through mailing lists, Matrix, and IRC. · kamailio.org, 5 Oct 2026
- Transports
- It supports UDP, TCP, TLS, SCTP, IPv4, IPv6, and WebSocket for WebRTC. · kamailio.org, 5 Oct 2026
Where Kamailio stands on Freedom251
- Voice APIs#4 of 52