Microsoft IT has published a white paper about their rollout of Exchange Server 2007 Unified Messaging (UM). This is a good resource for those who enjoy technical detail and are curious about real-world UM implementations!
What is the best way to implement the Unified Messaging (UM) features of Microsoft Exchange Server 2007? Discover how Microsoft IT uses Unified Messaging to integrate voice messaging with an internal e-mail messaging environment. In this white paper, we detail the technical implementation and deployment strategy for rolling out Exchange 2007 Unified Messaging features in the Microsoft enterprise messaging environment. Learn what UM features and functions are deployed at Microsoft, why UM is a compelling service to offer Microsoft employees, and the design issues to consider when planning to integrate Exchange Server 2007 with an existing PBX infrastructure in your own organization.
Please note that the following is also available as part of this release: