Wanted to provide some feedback on what I am seeing with CCA 2.2.1 and UC520 16 user:
I'm running into some consistency issues when configuring monitoring and intercom extensions using the Configure tab, Voice section, User Extensions tab. If I go through and configure a 7960 or 7970 with a 7914 sidecar, it seems that several of the monitor lines and intercom lines are missing after applying. I have to go back and add the missing lines again after. It really gets things confused when I change lines around without first setting all lines to 'none' (except line 1), saving, then attempt to add them back. I do not know if this is just with sidecar phones, as they are the only ones I have added yet other than single lines.
If you need any logs or else to review what is happening, let me know.