This contains the SIP/SDP and URL parsers and the SIP and SDP message classes. The main iterfaces to the parsers are StringMsgParser and PipelinedMsgparser. They are intended to be used for parsing UDP and TCP messages respectively. See the examples directory for usage examples. The grammars are defined in the following RFCs : SIP RFC 2543 (bis 03); SDP RFC 2327; URL RFC 2396.