Unified Messaging Web Service in Exchange 2010
Last modified: May 27, 2009
Applies to: Exchange Server 2007 | Exchange Server 2010
The Unified Messaging Web service provides an extensibility point for clients to read and change information about Unified Messaging properties.
For Microsoft Exchange Server 2010 and later versions, we recommend that you use the Unified Messaging operations that are available in Exchange Web Services (EWS) in Exchange 2010 instead of the Unified Messaging Web service for the following reasons: