Binary package “ser” in ubuntu intrepid

Sip Express Router, very fast and configurable SIP proxy

 ser or SIP Express Router is a very fast and flexible SIP (RFC3621)
 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, Presence Agent, Radius
 Authentication, Record Routing, SMS Gateway, Jabber Gateway, Transaction
 Module, Registrar and User Location.