TRUE, The "Expires" header (in INVITE or 200OK) specifies the transaction life time, which intern could be used to decide how long the call could be in "Proceeding"/any other state before being considered the call terminated after receiving the 1xx response...
It's like overloading Expires header for call setup duration....(could be done without violating any part of RFC, but not been said in RFC)... Thanks & Regards, Nataraju A.B. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Prakash Maria susai - NPD, Chennai Sent: Monday, December 05, 2005 12:43 PM To: [EMAIL PROTECTED]; Srinath.H.N Cc: [email protected]; [EMAIL PROTECTED] Subject: RE: [Sip-implementors] TIMER B expiry when INV Client Transaction inProceeding state Hi Thangarajan/Srinath, Further, the UA can use SIP itself, for mentioning/specifying the Ringing time, through the SIP "Expires" Timer in INVITE. Thanks, Prakash. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of [EMAIL PROTECTED] Sent: Saturday, December 03, 2005 10:04 AM To: Srinath.H.N Cc: [EMAIL PROTECTED]; '[email protected]' Subject: Re: [Sip-implementors] TIMER B expiry when INV Client Transaction in Proceeding state Hi Srinath, Timer B will be stopped the moment a provisional response is received, i.e., when the FSM enters the "Proceeding" state. but it is not clear from the spec. http://lists.cs.columbia.edu/pipermail/sip-implementors/2005-November/01 1312 .html There is no timer here for the UA because it is not a protocol issue. But Implementer can have own ringing timer in the proceeding state. This timer would determine "how long do you let the phone ring if no one answers" Regards, Thangarajan. "Srinath.H.N" <[EMAIL PROTECTED] ech.com> To Sent by: "'[email protected]' sip-implementors- " [EMAIL PROTECTED] <[email protected]> ia.edu cc Subject 12/02/2005 07:15 [Sip-implementors] TIMER B expiry PM when INV Client Transaction in Proceeding state Hi All, I have a question about the behaviour of INVITE Client transaction(ICT) of UAC. Q: What happens when TIMER B expires, when the INVITE Client transaction is in "Proceeding" state? Section 17.1.1 of Rfc 3261 does not talk about this scenario. Even the Figure 5 does not dipict this. Which state does ICT enter into? Should it be moved into "Terminated" state after a "408 Timeout" event is given to TU? Regards, Srinath _______________________________________________ Sip-implementors mailing list [email protected] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors *********************** FSS-Private *********************** "DISCLAIMER: This message is proprietary to Hughes Software Systems Limited (HSS) and is intended solely for the use of the individual to whom it is addressed. It may contain privileged or confidential information and should not be circulated or used for any purpose other than for what it is intended. If you have received this message in error, please notify the originator immediately. If you are not the intended recipient, you are notified that you are strictly prohibited from using, copying, altering, or disclosing the contents of this message. HSS accepts no responsibility for loss or damage arising from the use of the information transmitted by this email including damage from virus." _______________________________________________ Sip-implementors mailing list [email protected] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors Disclaimer: This message and any attachment(s) contained here are information that is confidential, proprietary to HCL Technologies and its customers, privileged or otherwise protected by law. The information is solely intended for the individual or the entity it is addressed to. If you are not the intended recipient of this message, you are not authorized to read, forward, print, retain, copy or disseminate this message or any part of it. If you have received this e-mail in error, please notify the sender immediately by return e-mail and delete it from your computer. _______________________________________________ Sip-implementors mailing list [email protected] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors _______________________________________________ Sip-implementors mailing list [email protected] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
