[OpenSIPS-Users] stuck dialogs on proxy thru b2bua

[Anca Vamanu]

Hi,

I have just made the commit, please update your code. Let me know if you 
still see this problem.

Regards,

-- 
Anca Vamanu
www.voice-system.ro



On 10/07/2010 10:52 AM, Anca Vamanu wrote:
> Hi,
>
> I made some fixes regarding some similar cases - BYE not being 
> transmitted on the other side, but only in trunk now. I will make the 
> backport now and let you know when it is done.
>
> Regards,
> -- 
> Anca Vamanu
> www.voice-system.ro
>
>
> On 10/06/2010 07:45 PM, thrillerbee wrote:
>> I've setup several OpenSIPS proxies (keeping track of 
>> dialogs,acc,etc.) behind a OpenSIPS B2BUA (to implement topology 
>> hiding - nothing else).
>> I'm currently using version 1.6.3 on both the proxy & b2bua.  I 
>> updated the b2bua modules from svn yesterday.
>>
>> Certain dialogs "hang" because of how the B2BUA handles an 
>> inappropriate response to an INVITE in a never-established (canceled) 
>> dialog coupled with the proxy establishing a dialog after a CANCEL 
>> has been processed.
>>
>> After the initial call attempt is canceled, the upstream carrier 
>> responds with a 200 OK to the INVITE.  The B2BUA sends that back to 
>> the OpenSIPS proxy.  The OpenSIPS proxy creates a dialog even though 
>> the INVITE has been canceled.  Soon afterwards, a BYE is received 
>> from upstream but the B2BUA does not send that back to the proxy.  As 
>> a result, the dialog hangs (until the timeout is reached).  I've 
>> tried to show the call flow below:
>>
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