> But this behavior is dependent on TU. What do you mean by that? The TU shall continue to re-transmit until 64T1.
On a related note these silo timer dependent behaviors make the protcol brittle. In this example the client times out early and server much later. As these timers are deployment specific for most part and can vary from one network to another, is there a timer negotiation mechanism defined in SIP somewhere? Nap On 4/14/06, Somesh S Shanbhag <[EMAIL PROTECTED]> wrote: > Hi, > > 2xx responses shall be retransmitted by the TU and not by transaction layer. > But yes, if Invite client transaction has already been terminated in > "Calling" > state, then re-transmission of 2xx will continue until timeout. > > But this behavior is dependent on TU. > > Regards, > Somesh S. Shanbhag > > > Nap <[EMAIL PROTECTED]> wrote: > > RFC3261 12.2.1.2 states that "If the client transaction returns a > timeout, this is treated as a 408 (Request Timeout) response. " > > If this situation happens in an INVITE Txn then according to 17.1.1.2 "If > the client transaction is still in the "calling" state when timer B > fires, the client transaction SHOULD inform the TU that a timeout has > occurred . The client transaction MUST NOT generate an ACK." > > And theTransaction transitions to Terminated. > > What happens if now a 2xx response is received from the server. > This could easily happen if the transaction timers are different on > client and server. So would the server re-transmit 2xx till its > timeout? Is that the only solution today? > > _______________________________________________ > Sip-implementors mailing list > [email protected] > https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors > > > > ----------------------------------------- > SIMPLICITY IS THE BEAUTY. > BE NATURAL LIVE NATURAL. > ----------------------------------------- > Somesh S. Shanbhag > Focus Area - VoIP Team (FA-VoIP) > Mascon Global Communication Technologies > Enterprise of Mascon Global Limited > #59/2, 100Ft Ring Road > Banashankari II stage > Bangalore-560070 > Karnataka > INDIA > Website: http://www.mgl.com/ > ----------------------------------------- > > ________________________________ > Love cheap thrills? Enjoy PC-to-Phone calls to 30+ countries for just 2ยข/min > with Yahoo! Messenger with Voice. > > > _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
