Hi, Thank for the quick response. The issue occur only when the Alice is a PSTN client. My ITSP says that they only supporting one call transfer (very strange). They can not explain why etc...
PSTN client: Alice MGW/MGC(ITSP): Cisco/SER Our sip server: SIPX BR Niklas 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> >
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