Kamailio is a very fast and flexible SIP (RFC3261)
proxy server. Written entirely in C, ser can handle thousands calls
per second even on low-budget hardware. C Shell like scripting language
provides full control over the server's behaviour. It's modular
architecture allows only required functionality to be loaded.
Currently the following modules are available: Digest Authentication,
CPL scripts, Instant Messaging, MySQL support, UNIXODBC support,
OSP support, Radius Authentication, Record Routing, SMS Gateway,
Jabber Gateway, Transaction Module, Dialog Module, Registrar and
User Location, Perl programming interface, SIMPLE Presence and SNMP.

WWW: http://www.kamailio.org/

- Bogdan-Andrei Iancu
- Daniel-Constantin Mierla