Hello all! I have a situation here where when I send a INVITE to some specific user-agents in my environment I must change the fr_timer to a value lower than the default. I can acomplish this using the "t_set_fr" commands in my cfg file, and it works like a charm. The point is that when the timer reaches its limit, the kamailio server sends a CANCEL message to the user-agent. I know that this is the normal behavior, but I want to add the Reason field on it, so the user-agent application can know that the call wasn't answered on time. I was looking the TM module documentation to understand how to do this, but I couldn't figure out a way to get this working. Is there a way to add the Reason in CANCEL messages generated by the fr_timer? Thanks. *_ _* *_ _* *_Bruno Emer_* Mobile: +55 11 96540-0044 email: brunoemer(a)gmail.com <mailto:brunoemer@gmail.com> <https://www.facebook.com/bruno.emer.5><https://www.linkedin.com/profile/view?id=86461237&trk=spm_pic><https://twitter.com/brunoemer_><https://www.flickr.com/photos/122070309@N03/><http://google.com/+BrunoEmer><http://instagram.com/brunoemer_> _______________________________________________ SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list sr-users(a)lists.sip-router.org http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users