[SIPForum-discussion] Session Timer

[HM Kias]

Hi,

B can send re-INVITEs to refresh the timer, enabling a “keep alive”
mechanism for SIP.

Regards,



On Thu, Sep 8, 2011 at 11:19 AM, VAMBARA, SAMPATH (SAMPATH)** CTR ** <
sampath.vambara at alcatel-lucent.com> wrote:

>  Hi,****
>
> ** **
>
> This should not be a problem and call will not be rejected. ****
>
> Below is the basic session timer negotiation during the session
> establishment.****
>
> ** **
>
> A                                              B****
>
>                         INVITE****
>
>                         Session-Expires: 1800****
>
> --------------------------------------------à****
>
> ** **
>
>                         200 OK****
>
>                         Session-Expires: 1200****
>
> ß--------------------------------------------****
>
> ** **
>
>                         ACK****
>
>                         Session-Expires: 1200****
>
> --------------------------------------------à****
>
> ** **
>
> ** **
>
> Regards,****
>
> Sampath****
>  ------------------------------
>
> *From:* discussion-bounces at sipforum.org [mailto:
> discussion-bounces at sipforum.org] *On Behalf Of *Raghul Prasanna
> *Sent:* Monday, September 05, 2011 5:18 PM
> *To:* discussion at sipforum.org
> *Subject:* [SIPForum-discussion] Session Timer****
>
> ** **
>
> Hello All,****
>
> ** **
>
> What if the session expires timer doesnt match between the ends, will the
> call fail?****
>
> ** **
>
> Say if A end has session expires set to 1800 secs and minse as 900 secs and
> B end has Session Expires set to 1200 and Min Se to 900 secs, what will
> happen when A sends an Invite to B?****
>
> ** **
>
> I know if the Session Expires in the Invite was 600 secs, B will reject
> saying less than MINSE timer, but what will happen in the above scenario?
> Please explain.****
>
> ** **
>
> Thanks,****
>
> Raghul****
>
> ** **
>
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-- 
HM Kias
91-9443467600
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