ReSIProcate Current Features

• Uses the VOCAL license (BSD like);
• UDP, TCP, TLS transports;
• A full implementation of the 3261 transaction state machine;
• A lazy parser - only parse headers when the application requests them;
• A strongly typed interface;
• The parser is compliant with the current RFCs;
• An Object-Oriented SDP parser and encoder;
• Support for SipFrag;
• Support for 'rport';
• Object Oriented C++ interface to the messages;
• Asynchronous DNS library (ares from MIT);
• Fast performance: > ~500 transactions per second on an Intelâ„¢ P4;
• Ability to add new headers and parameters without rebuilding the stack;
• MIME and multipart-MIME contents;
• S/MIME
• Single-threaded or multi-threaded (thread-safe stack);
• One library with only two external dependencies:
  • ares - DNS Resolver
  • openssl - Security (for TLS)
• Multiple SIP stacks in the same application;
• Support for shutting down a SIP stack without exiting the application
• IPv6 support in the parser and DNS ;
• Full NAPTR and SRV support (support RFCs: 3261, 3263, 2915, 2782) ;
• Full asynchronous DNS support in Windows ;
• Support for multi-homed hosts ;
• Builds and runs on Windows and most Unixes. reSIProcate has been built and tested on:
  • GNU/Linux 2.4, 2.5 ;
  • Mac OS/X 10.2 (Jaguar) and 10.3 (Panther) ;
  • Solaris 8 and 9, and ;
  • Windows XP and 2003 Server ;
  • (most things with modern C++ compilers), and;
• Easy to plug-in new transport protocols.

In Progress

Features that are being added right now:

• GNU Autotools tools for build ;
• Even faster performance ;
• Support for both select(2) and poll(2) (possibly epoll(2) in the future) ;
• A user agent layer above the current stack which will manage user agent retransmissions and dialogs, and;
• SCTP transport protocol support.