Not yet, we are a very unhappy costumer

Hi Robert I've tried the version 11.7.1.17 without success... TAC no help too... this began happening after we installed the Cisco Unified CM IM and Presence 11.5, but all the others models for e.i 8841 are working.

I have the problem too... My CUCM 11.5, I've already tried 11.0.5, 11.0.7, also downgraded to 10.3.1 without results...