Resolved! compatibility between CUCM and IM&P
We have a CUCM cluster with 3 Nodes (Version: 10.5.1) and a IM&P cluster with 2 Nodes (Version: 10.5.1). I want to upgrade only the IM&P server to the newest version 11.5.1 to use the new Features. Is it possible to have the CUCM cluster running wit...