What should be the Final session refresh timer here? 1600 or 1800 ?
The UE has changed the session-refresher timer to 1600 from initial 1800. But the UA is responding with 1800 as final session-expires. The RFC states that the final session-expires time interval can not be greater than the initial time interval. Thanks, Shyam **************************************************************************** *********** This e-mail and attachments contain confidential information from HUAWEI, which is intended only for the person or entity whose address is listed above. Any use of the information contained herein in any way (including, but not limited to, total or partial disclosure, reproduction, or dissemination) by persons other than the intended recipient's) is prohibited. If you receive this e-mail in error, please notify the sender by phone or email immediately and delete it! -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of SIP Satan Sent: Wednesday, October 20, 2010 3:44 PM To: Ravi Kumar Cc: [email protected] Subject: Re: [Sip-implementors] Regarding Rfc 4028 Ideal situation is UPDATE can carry same value for SE as INVITE's, Other option is UAS can overwrite session timer values with the latest received one (of UPDATE's) and both 200 OK of UPDATE and INVITE can carry the updated one. On Wed, Oct 20, 2010 at 12:21 PM, Ravi Kumar <[email protected]> wrote: > > > > > _____ > > From: Ravi Kumar [mailto:[email protected]] > Sent: Friday, October 15, 2010 7:27 PM > To: ''[email protected]' > Subject: Regarding Rfc 4028 > > > > Hi All, > > I have call flow Like below. > > > > UE UE > > > > | | > > --------Inv----------> (Session Expire: 1800) > > | | > > <----------183----- > > | | > > ------update------->(Session Expire: 1600) > > | | > > <-------200-update (Session Expire: 1600;refresher=uas) > > | | > > <-------200-Inv--- (Session Expire: 1800;refresher=uas) > > | | > > > > Doubt: > > 1. When UAC is negotiating session timer value with INVITE > request, and session timer negotiation is not completed then UAC should not > start negotiation with UPDATE request. Because this behavior not defined by > RFC-4028. How does other implementation handles this at UAS side. > > And UAC should send UPDATE request with Session Expire header > when INVITE negotiation is not completed. > > 2. Can UPDATE request start Session timer negotiation, because > it is used for session timer refresher? > > 3. What does RFC-4028 last response mean? > > > > > **************************************************************************** > **************************** > This e-mail and attachments contain confidential information from HUAWEI, > which is intended only for the person or entity whose address is listed > above. Any use of the information contained herein in any way (including, > but not limited to, total or partial disclosure, reproduction, or > dissemination) by persons other than the intended recipient's) is > prohibited. If you receive this e-mail in error, please notify the sender > by > phone or email immediately and delete it > > > > _______________________________________________ > Sip-implementors mailing list > [email protected] > https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors > -- Regards -Satan _______________________________________________ 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
