Hi,
The Temp Fail message refers to a network or connectivity problem, usually if the call is between 2 IP phones, one phone received an ICMP Unreachable from the other phone. If the call was PSTN/Ip phone, then the gateway lost communication with CallManager, probably the remote endpoint became unregistered.
You can use RTMT and check for the Syslogs in order to determine what is the disconnection reason.
You can also get a CUCM detailed trace to see what device got disconnected.
http://www.cisco.com/en/US/products/sw/voicesw/ps556/products_tech_note09186a0080094e89.shtml
Regards,
Tere.
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Regards,
Tere.
If you find this post helpful, please rate! :)