Call from C60's registered with VCS as H323 endpoints can not call across a SIP trunk to 9971 video phones registered as SIP endpoints on CUCM. Working with TAC and have identified this as a reason for the call setup failure.
12/07/2011 23:43:15.232 CCM|//SIP/SIPTcp/wait_SdlReadRsp: Incoming SIP TCP message from 10.248.19.1 on port 25478 index 36892 with 901 bytes:
HI Rob - You should see an ACK to this 420 and see VCS Re-Invite the call WITHOUT the required extensions in the empty Invite. Do you see that in the CUCM trace? Can you look passed this to see if you see that behavior?
From what I've seen VCS should re-Invite the call without those extensions. Is there any other dialog happening after this occurs? Does the call fail or does it connect with no audio or video? I do believe the call ID tag will change when this occurs, but I may be mistaken.
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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
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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 ...