We are installing a Unity 5.0 server for a client and finished the CUSPA portion of the install earlier today. At the start of CUSPA process, we checked the Voice Messaging option (no failover and 32 ports) and have stopped the install at this point. There is a chance we have to now change this server to Unified Messaging since the licenses purchased supports either configuration (as far as we can tell). Assuming this is the case, do we need to run CUSPA again and change that setting to "Unified Messaging" instead, or can we proceed with the install and do what normally would be done on a UM install from this point on?
Is that setting important enough that it should be changed to the proper value?. If so, how do we re-run CUSPA and just change that setting without re-installing the server from scratch.
Just an advice:
"We have now found out customer wants to do UM with their new Exchange 2007 servers, so obviously we can't go with Unity 5."
If the above is in regards to Unity 5/Exchange 2007 compatibility you can do it, Unity 5.X and above provide support for Exchange 2007.
4.X versions are the ones that do not support Exchange 2007.
Exchange Requirements-Message Store
if this helps, please rate