I have read 12-19,
I know that positive response ends transaction. Ok what is transaction user for b2bua ? I'm trying to figgure out if its possible and wise to handle ack in dialog. Like uac dialog sends ack and uas dialog does retransmission of positive response while gets ack or 64x t2 reached. If that's not allowed or wise, there may n calls at same time, what normal way to map timer to dialog. -----Original Message----- From: "Singh, Indresh (SNL US)" <[EMAIL PROTECTED]> To: "ext Ivar" <[EMAIL PROTECTED]>; [email protected] Sent: 05/15/2007 23:17 Subject: RE: [Sip-implementors] ACK and UAS dialog Hi Ivar, Hi Ivar, I would recommend referring to section-12 ( dialog ) section 13 (session ) and section 17 ( transaction ) collectively of RFC-3261 for case described below. Yes the UAS created dialog should wait for the ACK, otherwise TU ( Transaction User ) running a 2xx timer waiting for ACK should timeout and release the call by sending a BYE or fall-back to previous successfully negotiated media ( if it was for re-INVITE-200OK ). For 2XX case please note that the transaction becomes free, so it is the TU which is running the retransmission and timeout timers. Regards, Indresh K Singh ------------------------------------------------------------- Sr. Software Engineer SIP Media Control and Signaling Nokia Siemens Networks Boca Raton, FL-33487 Ph: 561-923-5085 (o), 561-923-2048 (o) ------------------------------------------------------------- >>-----Original Message----- >>From: [EMAIL PROTECTED] >>[mailto:[EMAIL PROTECTED] On Behalf >>Of ext Ivar >>Sent: Tuesday, May 15, 2007 11:02 AM >>To: [email protected] >>Subject: [Sip-implementors] ACK and UAS dialog >> >>Hi, >> >>After reading RFC 3261, i don't find place what describes following: >> >>UAC send INVITE, UAS gives 200 ok answer. >> >>Now UAC send ACK (thats nicely in rfc 13.2.2.4), where ACK is >>handled in >>UAS ? >>Does UAS created dialog must wait for ACK confirmation, if it doesn't >>get it, dialog will be terminated and BYE is sent to UAC ? >> >> >>_______________________________________________ >>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
