[SIPForum-discussion] How can we Handle Glare/Race Condition at SIP

[vijay kant gupta]

Hi Manoj

At proxy side can we analyze whose request landed first.  by help of  "Time
Stamp".
If suppose B part call landed late proxy then proxy analyze and drop the B
call, and proceed with A invite to B.
By giving *603 Decline  or call rejected.*

Regrads
Vijay

On Fri, May 8, 2009 at 1:45 AM, Underwood, Rosa <
rosa.m.underwood at verizon.com> wrote:

>  Greetings:
>
>
>
> Adjustment of session timers can reduce the occurrence of glare conditions
> during established calls.
>
>
>
>
>  ------------------------------
>
> *From:* discussion-bounces at sipforum.org [mailto:
> discussion-bounces at sipforum.org] *On Behalf Of *Manoj Singh
> *Sent:* Wednesday, May 06, 2009 1:28 PM
> *To:* discussion at sipforum.org
> *Subject:* [SIPForum-discussion] How can we Handle Glare/Race Condition at
> SIP
>
>
>
> My Scenario is like this.
>
>
>
> There User A and User B.
>
> Both  of these Users are Register through One Common Proxy.
>
>
>
> What will happen If Both User try to call each other at same timie stamp.
>
>
>
> in other word
>
>
>
> "User A tried to make a call to User B and at the same time User B also
> tried to call User A".
>
> I guess when User A tied to Call B and Server give the 4xx response that
> USer B is Busy.
>
>
> But Actually User B also tried to make a Call to User A.
>
>
>  So Do we have any procedure to Handle the this Race/ Glare Control in SIP
> ??
>
>
> Thanks,
> Manoj Singh
>
>
>
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