Beside that what you said Laith - I still think that you need specific tones for disconnect on FXO and only then your voice setup is going to work as it should. I can't comment on different version of IOS-es but maybe your previous one was better in handling this type of problem...if you don't have any specific requirement and must use 15.1 IOS you can always revert back to 15.0 and continue using your ports as already...
But if I was on your place - I would solve this problem once for all and then you don't have to worry about some upcoming new IOS
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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 ...