I tried to register a phone to ccm, that phone has pre-installed sip image. From the sniffer, I always see the ccm return a 405(method not allowed) message. tried to register another phone with skinny image and no problem found.
Does that means the ccm can only support skinny phone to register?
As mentioned in the earlier posts that CCM 4.X does not support SIP. However if you have a SIP proxy server, you can form a SIP trunk between the UCM and the Proxy server so that the phones register to the proxy server.
I request someone to please validate if this is feasible or not.
If this is not a production environment then you can look for some open source proxy server -
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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 ...