In my opinion, When the ACK is lost, the gateway should still let the media pass through when the SDP offer/answer is complete & keep on resending the 200 OK response back, because it might be possible that gateway gets ACK after few retransmissions & it would be inappropriate to block the media for that duration from the user point of view. When there is no response from the User A for all the retransmissions the transaction timeouts & gateway should terminate the call with the User A by sending BYE.
Regards, Pravesh On 6/15/07, Bob Beers <[EMAIL PROTECTED]> wrote: > Let me first say that I am not a SIP expert, so my comments > may be completely off the mark. :) > > On 6/15/07, varun <[EMAIL PROTECTED]> wrote: > > Could anybody reply please?? > > It's only been one day, and your question is very vague. > > > > > Thanks in advance > > varun > > --- varun <[EMAIL PROTECTED]> wrote: > > > > > Hi, > > > Another media issue: > > > > > > user A----->GateWay----->user B > > What exactly is this "GateWay"? > What it should do depends on what it is -- (proxy, b2bua, router?). > > > > > > > ----------->Invite > > > <------------ 200 OK > > > > > > Ack is lost( no Ack) > > > > > > Here the Gateway does not receive the ACK but user A > > > starts transmitting the media so what should the > > > gateway do with the media?Play the media or ignore > > > it > > > till we get an ACK. > > How can the GateWay 'play' the media? The media is intended for > user B, no? > > > > > > > > Thanks > > > varun > > > > > Hopefully you will provide more information to allow the experts to > give a more complete answer. > > -Bob > _______________________________________________ > Sip-implementors mailing list > [email protected] > https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors > _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
