2008/12/18 Paul Kyzivat <pkyzi...@cisco.com>: >> IMHO, the only solution here (without handling RTP) is a B2BUA that >> does accounting and also SessionTimers in clients leg and carriers >> leg. > > You can get the same effect with a call-stateful proxy that uses Session > Timer.
Sorry??? a proxy cannot generate in-dialog requests ! It desecrates RFC 3261 section 16 ! If a proxy would do that, it should deal with CSeq values and RSeq values in case of PRACK, that is a very annoying task for a proxy, isn't it? > But if you don't control the media, that will not protect you against > someone intent on defrauding you. > > I could create some custom UAs, that establish a media stream using the > normal sip means, but that continue to use it even after sending BYE. Yes, but you can no control that behaviour in the gateway. > The bottom line here is that if you don't control the media, then it is not > *your* network that the media is using, it is the *caller's* network that > the caller is using for media, and you have no justification to charge for > it. I don0t understand why not. Again the same example: A carrier resells its access and me, as a small SIP provider, add a SIP proxy with IM, presence and so (added value for clients). Call to PSTN are routed to carrier gateways without the need of handling the media. The carrier will charge ME for the used traffic, so I must charge my clients for it. Regards. -- Iñaki Baz Castillo <i...@aliax.net> _______________________________________________ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
