Sofia-SIP 1.12.10

Sofia-SIP is an open-source SIP User-Agent library, compliant with the IETF RFC3261 specification.
Sofia-SIP is an open-source SIP User-Agent library, compliant with the IETF RFC3261 specification.

Sofia-SIP project can be used as a building block for SIP client software for uses such as VoIP, IM, and many other real-time and person-to-person communication services.

The primary target platform for Sofia-SIP is GNU/Linux. Sofia-SIP is based on a SIP stack developed at the Nokia Research Center. Sofia-SIP is licensed under the LGPL.

Main features:

  • SIP features:
  • Sofia-SIP implementation follows RFC3261 and related key RFCs. INFO, UPDATE and REFER methods are supported. Also supported is SIMPLE presence and instant messaging, with the MESSAGE, SUBSCRIBE/NOTIFY and PUBLISH methods. Features such as early sessions, provisional responses, early media, caller preferences and session timers are included. Full set of transports, including both TCP and UDP over either IPv4 or IPv6, are supported.
  • SIP Offer-Answer module:
  • Sofia-SIP provides an implementation of the SDP offer-answer negotiation as specified in RFC3264. This is an essential component in using SIP to establish media sessions such as VoIP and video conferencing.
  • NAT traversal support:
  • Support for STUN as specified in RFC3489. STUN functionality is available via a separate module, so it can also be used independently from the base SIP stack. SIP extensions such as symmetric response routing (RFC3581/rport) are supported as well.
  • SIP security support:
  • Signaling can be secured by use of SSL/TLS. Also HTTP basic and digest authentication methods are supported.

last updated on:
December 10th, 2008, 2:48 GMT
price:
FREE!
homepage:
sofia-sip.sourceforge.net
license type:
LGPL (GNU Lesser General Public License) 
developed by:
Kai Vehmanen
category:
ROOT \ Communications \ Telephony
Sofia-SIP
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