Hi, also you should check, what your ITSP really supports. I don't think our Cisco PGW's here at Telefonica Germany supports properly Call-Transfer and it is absolutely ok, since we are providing Class 4 services and not Class 5 services (which would be handled by our Class 5 infrastructure). Call-Transfer ist a typical Class 5 feature which is normally supported by a PBX and not natively by a class 4 infrastructure.
Kind regards, Carsten 2011/2/25 Iñaki Baz Castillo <i...@aliax.net>: > 2011/2/25 niklas rehnberg <niklas.rehnb...@gmail.com>: >> Hi, >> Have following issue: >> >> Alice calling Bob. >> Bob make call transfer to Charlie (works fine) >> Charlie transfer Alice to David. (the call break) >> >> Why is not possible to transfer the call more than one time? >> Is it any parameters? >> >> My ITSP use SER together with Cisco MGW. > > Niklas, nothing in SIP protocol neither in SER/Kamailio makes your > scenario to fail. It must be a problem in your custom setup. Try > identifying the problem capturing SIP traces. > Also take into account that a proxy doesn't participate at all in the > process of a "call transfer". It's just a transparent mechanism for a > proxy. > > -- > 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 > -- Carsten Bock Schomburgstr. 80 22767 Hamburg Germany Mobile +49 179 2021244 Home +49 40 34927217 Büro (Verl) +49 5246 801427 Fax +49 40 34927218 mailto:cars...@bock.info _______________________________________________ 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