Kamailio is a GPL licensed SIP server implementation. It started in 2005 as a fork of Fokus Fraunhofer SIP Express Router (SER) project. Kamailio wants to be a more open project, not only from license point of view, but more open as project management, especially for external contributions.



Kamailio focuses on stability, innovation and flexibility, wanting to ensure a shorter path into a release for new added features.

Kamailio is a project maintained by several companies and individuals, by a

team including core and main developers of SER project. For details please

refer to the AUTHORS file and the module documentation.