Juha, On Thu, Oct 7, 2010 at 8:52 AM, Juha Heinanen <j...@tutpro.com> wrote: > Andrei Pelinescu-Onciul writes: > >> > if proxy is processing all invites statefully, why anything needs to be >> > done when invite transaction corresponding the to cancel is missing? >> > isn't it a case of unmatched cancel and the cancel could just be >> > dropped? >> >> Well, IMHO it should be forwarded the same as one would forward the >> INVITE. Dropping it is quite a hardliner approach :-) > > andrei, > > i would challenge invite, but can't do that for cancel. what is the > advantage of becoming an open unmatched cancel relay?
Maybe for reliability reasons? If something goes wrong with your proxy and it looses the state for a transaction, the proxy might just forward the request statelessly and hope for the best. I know there are many cases where this would not work (serial forking, etc.) in real world setups, but I guess we have just been trying to be as forgiving as possible in such cases. -Jan _______________________________________________ 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
