I tried to upgrade to the latest SCCP firmware of 6921, which is 184.108.40.206 I think. It works fine but when I try to return it back to SIP 220.127.116.11zz, it suddenly got a rejected status and can't even register. I even try to upgrade to the latest SIP firmware which is 18.104.22.168 I think but still got a rejected regisration status.
May I know what are the possible reasons for this? I already tried to set the firmware in device defaults, even tried to restart the tftp service, and add the 69xx.load name under a single 6921 device but still rejected status
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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 ...