If the UA is resending the INVITE after receiving 100 Trying, should'nt it resend only after T2 or 4 seconds? I am wondering whether the 0.5 second retry means that the 100 Trying is not getting co-related to the sent INVITE.
Kedar On 8/17/06, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote: > > From: Nitzan <[EMAIL PROTECTED]> > > i was able to capture such a SIP call live and i have seen the > following, > an INVITE is being sent from the UA, the Proxy is sending 100 message > as it should and maybe a half a second later another INVITE is being > sent from the UA ! > with the same info as the 1st INVITE, this repeats it self and every > time my Proxy says "Trying 100" but only one of these INVITEs will > proceed and connect. > > If the INVITEs have the same CSeq value, all other components in the > system should treat them as duplicates, and you should not get > multiple charging. (Note that an IP network may deliver multiple > copies of a UDP packet, so it may not be the UA that is at fault.) > > If the callee has already sent a response to the INVITE, every time it > receives an additional copy of the INVITE, it should send a duplicate > of the response. (Until a particular one of the timers has expired.) > > Dale > _______________________________________________ > Sip-implementors mailing list > Sip-implementors@cs.columbia.edu > https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors > _______________________________________________ Sip-implementors mailing list Sip-implementors@cs.columbia.edu https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
