|Source:||MSExchange Unified Messaging|
|Message:||The Unified Messaging server did not register for directory change notifications on the UM DialPlan container. The Unified Messaging server will retry this operation after %1 minutes. Additional information: “%2”|
This Warning event indicates that the Microsoft Exchange Unified Messaging Service cannot register the Unified Messaging (UM) DialPlan container for the Active Directory® change notification request when you start the Unified Messaging Service. Active Directory change notification is used to notify the computer that has the Unified Messaging server role installed if a change is detected within the registered Active Directory container. Another symptom you may experience when this event occurs is that the Unified Messaging server is unable to detect when other dial plans are added, removed, or modified in Active Directory. This event may be caused by network connectivity issues between domain controllers and the computer that has the Unified Messaging server role installed.
To resolve this warning, do one or more of the following:
If you are not already doing so, consider running the tools that Microsoft Exchange offers to help administrators analyze and troubleshoot their Exchange environment. These tools can help you make sure that your configuration is in line with Microsoft best practices. They can also help you identify and resolve performance issues, improve mail flow, and better manage disaster recovery scenarios. Go to the Toolbox node of the Exchange Management Console to run these tools now. For more information about these tools, see Toolbox in the Exchange Server 2007 Help.