I have 7931 with SCCP31.8-4-4S running on CME 12.4.22T1. From time to time user can't end the call by pressing "End Call" button or normally. The call stays in progress even the remote party hung up already. Only the way to end this is reboot the phone. sh ephone offhook shows 0 phones on call, but 7931 keeps blinking the line and show the call on the screen.
It's occurring on all 7931 (in this particular install there are 9 of them). I'm not using shared lines, but I use bunch of BLF buttons and intercom buttons. First 3 buttons are DID's the remaining 21 buttons are BLFs and intercoms.
There is no FW in between, it's all local single 3560 switch.
I was able to reproduce this in the lab also and submitted the captures to TAC. They say it smells like a bug.
This normally happens when there is a network issue, i.e. network is not responding or similar situation, and it happens as I have experienced it lot of time. Just to verify this situation, next time, when you face this problem, try to ping something on network, e.g. your mail server, it should not be pinging as per my experience.
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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 ...