Installation Prerequisites

Before starting the installation, it is important that the users’ mailboxes, which will be serviced by the Unified Messaging server, are on Exchange 2010 servers. In other words, Exchange 2010 UM cannot service users with mailboxes on an Exchange 2007 or earlier mailbox server. Of course, the requirements (such as PowerShell) for any Exchange 2010 server role apply to the Unified Messaging server.

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