There is no reason that you can't have two Unity servers integrated with the same CallManager cluster. With CallManager 3.2 and later you have voicemail profiles which makes it easy to manage. Check out this URL for details which pertain to 3.1:
I'm not able to access my old voice mail messages all of a sudden. The recording says something like 'the message is currently not available'. This has never happened before in all the years I have been using this system. I have t...
If you have 2 ISR routers, one acting as Failover, do we need to have both the same number of SRST licenses on the 2 routers?
No. You will only need the SRST licenses on the primary router. Because this feature...