there is indeed a loop going on there after a hold attempt. It seems you can now reproduce this at will. sipx bridge debug level log would help pinpoint where the loop is happening.

On 04/24/2012 05:58 PM, Sven Evensen wrote:
We have this call scenario (sipX 4.4)

Ext calls to int A (860)
A transfers to B (864)
B has ring "at same time" C (868)
B has "no repsonse" 25sec
C has "no response" 25 sec, then forward to A

A call to this scenario caused sipxBridge to go crazy and sent numerous INVITE then 100 Trying to itself. This caused the system to go to 100% CPU and eventually all calls gave busy.

Please see attached trace.xml

We are having daily 100% CPU issues, most likely with sipxBridge. Any ideas on how to troubleshoot this is greatly appreciated.

Sven.


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