Hi team. AOD 8.0. When i dial to application then input the number I want to conference, I can hear an error message but the conference goes on.

On trace.log I can see the error 'holdCall failure':
':
01/07/2021 05:29:19:635 DEBUG - CTICallObserver.callChangedEvent: Number of events on extension 491105 is 4
01/07/2021 05:29:19:636 DEBUG - CTICallObserver.callChangedEvent 491105: Event: 0 is 117 for call 13165 Provider:NSEAES
01/07/2021 05:29:19:636 DEBUG - CTICallObserver.callChangedEvent:491105: got an unknown event 117
01/07/2021 05:29:19:636 DEBUG - CTICallObserver.callChangedEvent 491105: Event: 1 is 215 for call 13165 Provider:NSEAES
01/07/2021 05:29:19:636 DEBUG - CTICallObserver.callChangedEvent:491105: got an unknown event 215
01/07/2021 05:29:19:636 DEBUG - CTICallObserver.callChangedEvent 491105: Event: 2 is 107 for call 13165 Provider:NSEAES
01/07/2021 05:29:19:636 DEBUG - CTICallObserver.callChangedEvent:491105: got Connection Disconnected Event 107
01/07/2021 05:29:19:636 DEBUG - CTICallObserver.notifyApplicationObserver: Notifying 491105 about call event
01/07/2021 05:29:19:737 ERROR - Hold.doHold 491105: error:holdCall failure
01/07/2021 05:29:19:737 DEBUG -CTICallObserver.removeApplicationObserver: removing an app observer from extension:491105


but nothing on tsapi_trace.txt around the same time:

2021-07-01 05:29:19,634 [DistributeCSTAEvent] INFO TSDevice - TSDevice state transition: Deleted -> Active, device TSDevice[490010]@48c5f012
2021-07-01 05:29:19,634 [DistributeCSTAEvent] INFO TSDevice - Device 490010 (object= TSDevice[490010]@48c5f012) being re-added for TSProvider[#2]@5a701768
2021-07-01 05:29:19,634 [GetEventThread] INFO TsapiSession - Received invokeID 128 for TSProvider[#2]@5a701768
2021-07-01 05:29:19,634 [DistributeCSTAEvent] INFO TSEventHandler - ********************* Call is not monitored, going for it
2021-07-01 05:29:19,634 [DistributeCSTAEvent] INFO TSEventHandler - DONE handling CSTA_CONNECTION_CLEARED for TSProvider[#2]@5a701768
2021-07-01 05:29:19,634 [GetEventThread] INFO TsapiEventQueue - Putting event CSTAEvent[CSTAEscapeSvcConfEvent]@643f80e4. EVENT Q SIZE = 1 MAX Q SIZE = 2 for TSProvider[#2]@5a701768
2021-07-01 05:29:19,634 [DistributeCSTAEvent] INFO TsapiEventQueue - Getting event CSTAEvent[CSTAEscapeSvcConfEvent]@643f80e4 for TSProvider[#2]@5a701768
2021-07-01 05:29:19,634 [DistributeCSTAEvent] INFO TSInvokeID - Handling INVOKE ID 128 for TSProvider[#2]@5a701768
2021-07-01 05:29:19,634 [DistributeCSTAEvent] INFO TSInvokeID - DONE handling INVOKE ID 128 for TSProvider[#2]@5a701768
2021-07-01 05:29:19,635 [http-nio-7080-exec-8] INFO TsapiAddress - API CALL END: Address.getConnections() for com.avaya.jtapi.tsapi.impl.LucentV11AddressImpl@5c8a553
2021-07-01 05:29:19,635 [http-nio-7080-exec-8] INFO TsapiSession - Sent InvokeID 129 for TSProvider[#2]@5a701768
2021-07-01 05:29:19,681 [GetEventThread] INFO TsapiSession - Received monitorCrossRefID 5 for TSProvider[#2]@5a701768
2021-07-01 05:29:19,682 [GetEventThread] INFO TsapiEventQueue - Putting event CSTAEvent[CSTAEstablishedEvent]@472a0786. EVENT Q SIZE = 1 MAX Q SIZE = 2 for TSProvider[#2]@5a701768
2021-07-01 05:29:19,682 [GetEventThread] INFO TsapiSession - Received monitorCrossRefID 5 for TSProvider[#2]@5a701768
2021-07-01 05:29:19,682 [DistributeCSTAEvent] INFO TsapiEventQueue - Getting event CSTAEvent[CSTAEstablishedEvent]@472a0786 for TSProvider[#2]@5a701768
2021-07-01 05:29:19,682 [DistributeCSTAEvent] INFO TSEventHandler - CSTA Unsolicited Event: CSTAEvent[CSTAEstablishedEvent]@472a0786
2021-07-01 05:29:19,682 [DistributeCSTAEvent] INFO TSEventHandler - Free memory: 90418824
2021-07-01 05:29:19,682 [DistributeCSTAEvent] INFO TSEventHandler - Total memory: 134152192
2021-07-01 05:29:19,683 [DistributeCSTAEvent] INFO TSEventHandler - Handling CSTA_ESTABLISHED for TSProvider[#2]@5a701768
2021-07-01 05:29:19,683 [DistributeCSTAEvent] INFO TSDevice - Constructing device TSDevice[490030]@6428db75 with name 490030 for TSProvider[#2]@5a701768
2021-07-01 05:29:19,683 [DistributeCSTAEvent] INFO TsapiSession - Sent InvokeID 130 for TSProvider[#2]@5a701768
2021-07-01 05:29:19,683 [DistributeCSTAEvent] INFO TSDevice - isTerminal() for TSDevice[490030]@6428db75
2021-07-01 05:29:19,683 [DistributeCSTAEvent] INFO TSDevice - TSDevice[490030]@6428db75 waiting for initialization to complete
2021-07-01 05:29:19,688 [GetEventThread] INFO TsapiEventQueue - Putting event CSTAEvent[CSTAConferencedEvent]@2e4ed5c8. EVENT Q SIZE = 1 MAX Q SIZE = 2 for TSProvider[#2]@5a701768
2021-07-01 05:29:19,688 [GetEventThread] INFO TsapiSession - Received invokeID 129 for TSProvider[#2]@5a701768
2021-07-01 05:29:19,688 [GetEventThread] INFO TsapiEventQueue - Putting event CSTAEvent[CSTAUniversalFailureConfEvent]@7b239246. EVENT Q SIZE = 2 MAX Q SIZE = 2 for TSProvider[#2]@5a701768
2021-07-01 05:29:19,733 [GetEventThread] INFO TsapiSession - Received invokeID 130 for TSProvider[#2]@5a701768
2021-07-01 05:29:19,733 [GetEventThread] INFO TSInvokeID - Handling INVOKE ID 130 for TSProvider[#2]@5a701768
2021-07-01 05:29:19,734 [GetEventThread] INFO TSDevice - Initialization complete for TSDevice TSDevice[490030]@6428db75 - making values available - for TSProvider[#2]@5a701768
2021-07-01 05:29:19,734 [GetEventThread] INFO TSInvokeID - DONE handling INVOKE ID 130 for TSProvider[#2]@5a701768
2021-07-01 05:29:19,734 [DistributeCSTAEvent] INFO TSConnection - Constructing Lucent termConn TSConnection[termConn:(13165,490030)]@485bb003 for TSProvider[#2]@5a701768
2021-07-01 05:29:19,734 [DistributeCSTAEvent] INFO TSProviderImpl - NOTICE: connHash.put() replaced null with TSConnection[termConn:(13165,490030)]@485bb003 for TSProvider[#2]@5a701768
2021-07-01 05:29:19,734 [DistributeCSTAEvent] INFO TSConnection - Constructing Lucent conn TSConnection[conn:(-,490030)]@142ebf86 for TSProvider[#2]@5a701768
2021-07-01 05:29:19,736 [DistributeCSTAEvent] INFO TSEventHandler - DONE handling CSTA_ESTABLISHED for TSProvider[#2]@5a701768
2021-07-01 05:29:19,736 [DistributeCSTAEvent] INFO TsapiEventQueue - Getting event CSTAEvent[CSTAConferencedEvent]@2e4ed5c8 for TSProvider[#2]@5a701768
2021-07-01 05:29:19,736 [DistributeCSTAEvent] INFO TSEventHandler - CSTA Unsolicited Event: CSTAEvent[CSTAConferencedEvent]@2e4ed5c8
2021-07-01 05:29:19,736 [DistributeCSTAEvent] INFO TSEventHandler - Free memory: 90102328
2021-07-01 05:29:19,736 [DistributeCSTAEvent] INFO TSEventHandler - Total memory: 134152192
2021-07-01 05:29:19,736 [DistributeCSTAEvent] INFO TSEventHandler - Handling CSTA_CONFERENCED for TSProvider[#2]@5a701768
2021-07-01 05:29:19,736 [DistributeCSTAEvent] INFO TSEventHandler - DONE handling CSTA_CONFERENCED for TSProvider[#2]@5a701768
2021-07-01 05:29:19,736 [DistributeCSTAEvent] INFO TsapiEventQueue - Getting event CSTAEvent[CSTAUniversalFailureConfEvent]@7b239246 for TSProvider[#2]@5a701768
2021-07-01 05:29:19,736 [DistributeCSTAEvent] INFO TSInvokeID - Handling INVOKE ID 129 for TSProvider[#2]@5a701768
2021-07-01 05:29:19,736 [DistributeCSTAEvent] INFO TSInvokeID - DONE handling INVOKE ID 129 for TSProvider[#2]@5a701768


Any idea what is the root cause and the solution ?

This shows the extension is getting disconnected while the app is trying to put the call on hold:

01/07/2021 05:29:19:636 DEBUG - CTICallObserver.callChangedEvent:491105: got Connection Disconnected Event 107
01/07/2021 05:29:19:636 DEBUG - CTICallObserver.notifyApplicationObserver: Notifying 491105 about call event
01/07/2021 05:29:19:737 ERROR - Hold.doHold 491105: error:holdCall failure

Hi, thanks for the reply. The only problem I can see on the tsapi_trace.txt is

2021-07-01 05:29:19,688 [GetEventThread] INFO TsapiEventQueue - Putting event CSTAEvent[CSTAUniversalFailureConfEvent]@7b239246. EVENT Q SIZE = 2 MAX Q SIZE = 2 for TSProvider[#2]@5a701768

this happened a few moments before the error message on the trace.log.

Neither error number nor error description is visible. I used debug level=4 on the trace. Do I have to increase the level to fetch additional info ?

What you need to investigate or confirm is why the call gets disconnected in the first place. That is the cause of the failure putting the call on hold.