had the same "problem"! The phone user tried out the phone and pressed the DND button. DND is Do not disturb,so the ringer was off, and the status line of the phone showed DND. Just press DND a seccond time, and the ringing was back!
I am having the same problem with a customer at a new site. The users report that they went in to view the ringtones available and after that there would be no audible alert for incoming calls. I checked the settings for the ringtone and also ensured that the ringer had not been turned down. When this is happening, they go into the ringtones and the Play button reports back "key not active here". Resetting the phone fixes the problem.
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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 ...