We are trying to introduce an Exchange 2007 Enterprise edition cluster to a large client (about 1000 seats) and they currently use Cisco Unity 3.1 (Build 3.1(5)).
The cisco unity server is currently integrated with their Exchange 2000 (Windows 2000 Active Directory) environment.
We will obvoiusly be upgrading their forest to Windows 2003 R2, and then running forstprep to upgrade the forst to Exchange 2007 capability.
My question is, will introducing the Active Directory changes "break" their Cisco Unity 3.1 based Unified Messaging platform?
Your assistance is appreciated.