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