Under the settings (Settings, Conferences), there is an option for the MCU to "Enable resolutions above CIF to be sent to Cisco Unified CM". Is this enabled and does changing this make any difference? I know you mentioned receive video but worth checking this too.
Another thing you can try is to add a sip "endpoint" in with the IP Address of Call Manager. Change transmitted video resolutions to "4:3 resolutions only" and see if that makes any difference.
Although niether of your suggestions resolved the issue, It allowed me to rule them out. The advice about adding the CUCM as a SIP endpoint on the MCU is also very helpful, a great way of controlling the the communications with it from the MCU side. Thanks.
Still no video from 8945 to MCU though. (well, not stictly true, it doesn't show 'no-video' it shows black video.)
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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 ...