I am having a problem getting a wireless 7920 to register with my Callmanager servers. We have the phone on our wireless network and it seems happy. But in the Network Config >> Current Config >> everything looks good except the listing for the CallManager Servers. There is only one server listed and it is not one of ours. The phone authenticates when turned on but then it displays a spinning wheel under the words Cisco Systems a message is displayed below that says "Connecting to CallManager 0" the number at the end changes from 0 through 5 and back to 0.
I have upgraded the firmware of the phone to the latest listed on the Cisco site. I am running CCM 4.2(3)sr4b on three servers. I do have the Cisco 7920 Config Utility V 3.02 installed on my computer.