The Exchange Management Console and the Exchange Management Shell are two administrative interfaces that can be used to manage all of the Unified Messaging objects that are found in the Active Directory directory service.
In the past, when using some third-party unified messaging solutions, there was no single point of administration for both voice mail and e-mail. Administrators would have to make configuration changes for e-mail in one interface and configuration settings for voice mail in another interface. For example, if they wanted to configure a mail-enabled user for Microsoft Exchange and a unified messaging user, they would have to make those configuration changes using two separate interfaces. Some third-party unified messaging solutions required them to maintain and manage multiple Active Directory domains or Exchange databases.
Using the Exchange Management Console and the Exchange Management Shell in Exchange Server 2007 Unified Messaging, you can manage all e-mail, voice mail, and fax messages.