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UM service is getting hang on Exchange 2013 RRS feed

  • Question


  • Dear All,

    our UM Service working on Exchange 2013 is getting hang twice in a week. i need the service restart to get this working. 

    we are getting below event ID 1079 related this issue. please help us to solve this

    Log Name:      Application
    Source:        MSExchange Unified Messaging
    Date:          4/28/2014 9:50:45 AM
    Event ID:      1079
    Task Category: UMCore
    Level:         Warning
    Keywords:      Classic
    User:          N/A
    Computer:      My Server
    Description:
    The VoIP platform encountered an exception RequestUri=sip:Myserver:5065;maddr=server ip address;transport=Tcp;ms-opaque=c16c75c1ce912e58 RequestMessageType=NOTIFY
    Microsoft.Rtc.Signaling.FailureRequestException:The transfer operation failed. For more information, refer to the message data in the exception.
       at Microsoft.Rtc.Signaling.SipAsyncResult`1.ThrowIfFailed()
       at Microsoft.Rtc.Signaling.Helper.EndAsyncOperation[T](Object owner, IAsyncResult result)
       at Microsoft.Rtc.Collaboration.Call.EndTransferCore(IAsyncResult result)
       at Microsoft.Exchange.UM.UcmaPlatform.UcmaCallSession.BlindTransferSessionState.Call_TransferCompleted(IAsyncResult r)
       at Microsoft.Exchange.UM.UcmaPlatform.UcmaCallSession.SubscriptionHelper.<>c__DisplayClass67`1.<>c__DisplayClass6a.<WrapCallback>b__66()
       at Microsoft.Exchange.UM.UcmaPlatform.UcmaCallSession.<>c__DisplayClassf.<CatchAndFireOnError>b__b()
    Detected at System.Environment.GetStackTrace(Exception e, Boolean needFileInfo)
       at System.Environment.get_StackTrace()
       at Microsoft.Rtc.Signaling.FailureRequestException..ctor(String message, Exception innerException, SipRequestData requestData)
       at Microsoft.Rtc.Collaboration.Call.CallTransferAsyncResult.Refer_StateChanged(Object sender, ReferStateChangedEventArgs e)
       at Microsoft.Rtc.Signaling.ReferStateChangedEventArgs.Microsoft.Rtc.Signaling.IWorkitem.Process()
       at Microsoft.Rtc.Signaling.WorkitemQueue.ProcessItems()
       at Microsoft.Rtc.Signaling.SerializationQueue`1.ResumeProcessing()
       at Microsoft.Rtc.Signaling.SerializationQueue`1.ResumeProcessingCallback(Object state)
       at Microsoft.Rtc.Signaling.QueueWorkItemState.ExecuteWrappedMethod(WaitCallback method, Object state)
       at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
       at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
       at System.Threading.QueueUserWorkItemCallback.System.Threading.IThreadPoolWorkItem.ExecuteWorkItem()
       at System.Threading.ThreadPoolWorkQueue.Dispatch()
     during the call with ID "560EE96C-CDD711E3-88A4ED80-130E27C4@10.196.188.74". This exception occurred at the Microsoft Exchange Speech Engine VoIP platform during an event-based asynchronous operation submitted by the server. The server will attempt to recover from this exception. If this warning occurs frequently, contact Microsoft Product Support.

    Tuesday, April 29, 2014 7:18 AM

All replies

  • Hi, 

    Anybody can help me on above issue.

    Thanks in advance.

    Thursday, May 8, 2014 6:52 AM
  • Did you find solution? I see the same problem.


    Please “Vote As Helpful” and/or “Mark As Answer” if this post helped you.

    Friday, August 1, 2014 7:41 PM
  • *bump*  - I am getting same error as well.  not having much luck finding any information on cause or remediation.  Pointers to ANY pertinent information would be very helpful. TIA
    Friday, December 12, 2014 4:56 PM