Currently in our production system, we are running 2.4.6(161) and Call Manager 3.0(12). We are planning on upgrading the Call Managers to 3.2 and installing new Unity servers in failover mode running 3.1(5).
We have already built the two Unity servers running 3.1(5) but have not configured them yet. We have a lab built with two Call Managers and we were wondering how we could test the Unity servers in the lab. Would we need to have a domain controller and an exchange server in order to test?
Also, is there a procedure to migrate the subscribers from teh 2.4.6 server to the new Unity servers or we have to do a flash cutover?