Troubleshooting Network Issues with Exchange Unified Messaging

Communications Server 2007 R2

Topic Last Modified: 2009-05-22

If Office Communications Server is not connected or configured to work with Exchange Unified Messaging or Exchange Unified Messaging is not configured to work with Office Communications Server, availability of Unified Messaging functionality can be affected. Topics in this section describe potential connectivity and network issues with Exchange Unified Messaging and how to troubleshoot them.

Integration of Exchange Unified Messaging and Office Communications Server 2007 R2 requires Exchange Server 2007 with Service Pack 1 (SP1). Before you begin troubleshooting, verify that Exchange Server is installed and that Exchange Unified Messaging is configured to work with Office Communications Server. For details, see Step 1. Configure Unified Messaging on Microsoft Exchange to Work with Office Communications Server and Step 3. Configure Communications Server to Work with Unified Messaging on Microsoft Exchange Server in the Deploying Enterprise Voice documentation.
The Unified Messaging troubleshooting information in this document is limited to issues that are related to Office Communications Server 2007 R2. For details about troubleshooting other Unified Messaging issues, see Testing and Troubleshooting Unified Messaging on Microsoft TechNet at, in addition to the Exchange Server 2007 product documentation.

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