Sofia-SIP 1.12.4

Sofia-SIP is an open-source SIP User-Agent library, compliant with the IETF RFC3261 specification. Sofia-SIP project can be used a

Developer:	Kai Vehmanen more software by author →
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License:	LGPL (GNU Lesser General Public License)
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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.

Here are some key features of "Sofia SIP":
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.

What's New in This Release:

On Linux systems, the sockets are handled with epoll allowing large number of concurrent connections, like 100 000 or more.

Headers in SIP URIs are now included in the request by nta and nua.

The nua API now supports arbitratry SIP methods. It supports handling incoming REGISTER and PUBLISH, too. There is now also reactive mode of handing subscriptions in nua, using nua_i_subscribe()/nua_respond()/ nua_notify()/nua_i_publish().

Severe bug in STUN functionality was fixed.
tags

sofia sip are supported offer answer stun functionality and publish methods are with the sip stack

Download Sofia-SIP 1.12.4

http://sourceforge.net/project/showfiles.php?group_id=143636

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