Hello Group I am planning the upgrade of our UC cluster (CUCM 1xPub 7xSub / CUPS 1xPub 1xSub) from 9.1 to 10.5. Has anyone done this before and can share some thoughts about it? What I am mainly interested in is the upgrade procedure, when to switch (Pub and Subs) over and time used. Any help is appreciated
Regards Reto
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