on the dial peer to the CUCM is already present the codec.
I opened a tac and an engineer cisco asked me the sniffed traffic behind the phone.
I will update the post as soon as I will get a response.
Let me know if you have another idea to solve this problemi.
I open a case with Cisco have not been able to re solve the problem, requiring every time packet capture behind the phones. when I discovered that the problem came from the SIP inspection that was the firewall in the data center I decided to update the firewall multicontext with the latest version, this has solved the problem. I do not have enough data to declare that the version of ASA is affected by bugs, but it is very likely
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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 ...