i have upgraded my callmanager cluster (1PUB +1SUB) from CUCM 6.1.2 to CUCM 18.104.22.1680-2 .
now i want to add one more subscriber (2nd SUB) in the cluster . as i mentioned above callmanager Publisher is with version 22.214.171.1240-2
my question is can i use callmanager 6.1.2 software for fresh installation on subscriber while publisher is cucm 6.1.4?
will callmanager publisher 126.96.36.1992-2 allow to add subscriber with version 6.1.2 , so that later on i can upgrade the subcriber to version 188.8.131.520-2