In my VoIP network, I am using CUCM 6.1 and Cisco IP Phone(7931/7911). I have two MCS 7835 Server( One is using as Primary and another as Secondary).
Some of the Phones some times getting down and showing an error message "UCM Down". and after some times its again getting register autometically with Secondary, after some times again its getting register with Primary server though in WAN link no Link issue is there.
Anybody is there to help me out from this type of problem.
Check out this: https://supportforums.cisco.com/thread/2007806. This idicates the phone lost connection to the call manager server it's registered to. Either network issue or a server problem. If you install the real-time monitoring tool and look around the alert central you can see if the server has had a problem as a first place to check. Alternatively you can check the phone console logs by going to the phone's IP address right after the problem happens and look at the status messages (if your phone is newer 7941/7961/7970+).
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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 ...