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SIPSL (SIP Service Layer) is a Programmable Session Border Controller (SBC) and SIP B2BUA, as defined in RFC3261.
Written in c++ and multithreaded. The Application logic can be implemented by extending the application class and implementing the call backs.
Asterisk based SIP b2bua realization. It's patched asterisk and some AGI script. Features: full vovida's b2bua radius emulation, extended radius attributes, radius failover, LCR, Call failover, Codec based routing and other useful things.
The OpenSIPStack Library is an implementation of the Session Initiation Protocol as described in RFC 3261. Applications: * OpenSBC (B2BUA) * OSSPhone (Softphone) Source code is available at http://www.opensipstack.org.
This project is an implementation of the Sip Back-to-Back User Agent. The B2BUA acts as a user agent to both ends of a Session Initiation Protocol (SIP) call.