The Unified Messaging server rejected an incoming call with the ID “%1”. Reason: “%2”

Details
Product: Exchange
Event ID: 1021
Source: MSExchange Unified Messaging
Version: 8.0
Symbolic Name: CallRejected
Message: The Unified Messaging server rejected an incoming call with the ID “%1”. Reason: “%2”
   
Explanation

This Warning event indicates that the incoming call with the Call-ID referenced in the event description was rejected by the computer that has the Unified Messaging server role installed. The Call-ID is a random identifier encapsulated in the Session Initiation Protocol (SIP) request. It is used to uniquely identify a call between the IP/VoIP gateway and the Unified Messaging (UM) server. This event may be caused by one or more of the following:

  • The UM IP gateway is disabled. When the gateway is set to Disabled Immediately, the UM server disconnects all calls that are connected to the server. When the gateway is Disabled After Completing Calls, the server processes all existing calls but does not accept any new calls.

  • The pilot number sent by the IP/VoIP gateway does not match to any pilot identifiers of the UM hunt groups that are associated with the UM IP gateway.

  • The IP address of the IP/VoIP gateway does not match to the IP address of the UM IP gateway.

  • The UM IP gateway does not contain any UM hunt groups.

  • The UM IP gateway is not linked to the UM server through UM hunt groups and UM dial plans.

   
User Action

To resolve this warning, do one or more of the following:

If a default UM hunt group is used, the pilot identifier should be blank.

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.

Related:

Leave a Reply