As a small part of a major project, we need to move from Exchange 5.5 to Exchange 2003. We also run Unity 4.0(5) on a seperate server, but it has Exchange 5.5 admin tools.
In our case, we will be changing the Exchange server (partner) AND the version of Exchange (5.5 to 2003) on it at the same time.
I'm a bit confused when I read through the documentation on changing the partner Exchange server. It says if you are changing both at the same time, to please refer to 'Upgrading Exchange on the Cisco Unity System' - In here, I cannot find a reference as to which procedure(s) to follow for our scenario.
Your Exchange migrate of 5.5 to 2003 on a different server in a new domain with AD is very similar to what I am doing. I have Unity (4.0.4 SR1) with unified messaging. Both my 5.5 and Unity servers are still in the old NT domain. Were you able to pull this off? May I ask for the steps you took to accomplish this?
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...