I have a cluster of three 7.1.3 CUCM. I have created a SIP trunk to service provider. I am able to make and receive calls. The issue I am facing is that the call gets disconnected every 15 mins.After seeing the capture I see that after 15 mins CUCM doesnot respond to the update messages and after 10th unsucessful message the Service provider sends BYE message and the call disconnects. I am not sure why is our CUCM not responding to UPDATE messages from Service Provider SIP server.
The UPDATE request is constructed as would any other request within an existing dialog, as described in Section 12.2.1 of RFC 3261. It MAY be sent for both early and confirmed dialogs, and MAY be sent by either caller or callee. Although UPDATE can be used on confirmed dialogs, it is RECOMMENDED that a re-INVITE be used instead. This is because an UPDATE needs to be answered immediately, ruling out the possibility of user approval. Such approval will frequently be needed, and is possible with a re-INVITE.
We had the same problem here exactly. We tore our hair out for days trying to figure this out. We resolved this issue by updating the IOS on our Router. We went to version > Release: 12.4.20T2 ( ED - Early Deployment ).
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The short answer is that you don't.... That isn't entirely true while at
the same time it kind of is, but for the most part you don't configure
the softkeys. You enable or disable them via TCL. Here is the long
answer. Be sure to read the whole thing or e...
Topology: IP Phone > Switches > Microsoft NPS setup to forward 802.1x
proxy to > ISE 2.1 patch 3 Authentication: EAP-TLS using Cisco MIC SANs
Phone Models 802.1X support? 802.1x flavor Addtl Comment EAP-MD5 EAP-TLS
Cisco 3905 Y Y N Cisco 6911 Y Y N Cisco ...