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.