2012/1/17 Daniel-Constantin Mierla <mico...@gmail.com>: > Hello, > > a new module is now on development branch, named msrp, offering an embedded > MSRP relay. Message Session Relay Protocol is specified by IETF ( core and > relay part in RFC4975 and RFC4976), one of typical use cases is Instant > Messaging sessions negotiated via INVITE-200ok-ACK, a different approach > than SIP MESSAGE request. > > There is no external dependency, the transport layer from core is reused to > manage TCP/TLS connections used for MSRP. A MSRP relay is pretty much an > independent node, thus you can run Kamailio just to deal with MSRP traffic. > But there is no problem to run Kamailio to handle SIP and MSRP traffic in > the same instance, same or different sockets (it is working even when > SIP/MSRP are sent over the same connection or different connections to same > port). > > I couldn't find a reliable and trustable open source SIP phone to test with > it so far (hints are welcome), the module was tested with network tools and > chaining Kamailio instances. Help with testing and feedback is very > appreciated -- I can provide guidelines to adjust the config file to fit > tester's needs, just contact me off list or via IRC channel. > > For the moment, the relation (user,session) management is done in the > config, using htable module for example (see the README), it may be added > inside the module for the future to make it easier overall, although is less > than 10 lines of config -- this is mainly for extra security reasons, to > check if the session id matches the connection that was opened when the > session was created, otherwise the user authentication functionality is done > reusing existing functions from auth module. Another benefit is > performances, storing local socket and connection IP/port saves some time to > lookup the connection. > > Building MSRP relay on top of SIP server was done first for the benefit of > reusing the transport layer from the core for IPv4/IPv6 and TCP/TLS, which > is mature, scalable and offers asynchronous communication. Besides that, you > have most of the config tools to route SIP requests available for routing > MSRP (authentication, authorization, IP checking, accounting, a.s.o.). > > I made a news post with more details: > > * http://www.kamailio.org/w/2012/01/new-module-embedded-msrp-relay/ > > The readme of the new module is available at: > > * http://kamailio.org/docs/modules/devel/modules/msrp.html
Hi Daniel, congratulations for this great addition, really good. About a SIP phone implementing MSRP, I just know Blink, no more. It has a well tested MSRP stack. Cheers. -- Iñaki Baz Castillo <i...@aliax.net> _______________________________________________ SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list sr-users@lists.sip-router.org http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
