Application instance data. The value specified in this structure is the same as 
the UserData parameter that is specified in a call to the StartPhoneLineRecording(VoipMediaEngine, Int32, Boolean, Boolean, Boolean, Boolean, Int32, String, VoipMediaEngine..::.PHONE_LINE_RECORD_CALLBACK_PROC, Object)
API procedure.
    Namespace: 
   LanScapeAssembly: LMEVoipManaged (in LMEVoipManaged.dll) Version: 6.0.5226.26700
