GNU ccRTP is an implementation of RTP, the real-time transport protocol from 
the IETF (see RFC 3550, RFC 3551 and RFC 3555). ccRTP is a C++ library based 
on GNU Common C++ which provides a high performance, flexible and extensible 
standards-compliant RTP stack with full RTCP support. The design and 
implementation of ccRTP make it suitable for high capacity servers and 
gateways as well as personal client applications. 

WWW:	http://www.gnu.org/software/ccrtp/