public void StartListening(RfcommServiceId serviceId)
{
_logger.Info("StartListen() in: serviceId={0}", serviceId.AsString());
// Initialize the provider for the hosted RFCOMM service
//_provider = RfcommServiceProvider.CreateAsync(serviceId).AsTask().Result;
_provider = _factories.ProviderFactory.Invoke(RfcommServiceId.SerialPort);
// Create a listener for this service and start listening
IStreamSocketListenerWrapper listener = _factories.ListenerFactory.Invoke();
//StreamSocketListener listener = new StreamSocketListener();
listener.ConnectionReceived += OnConnectionReceived;
listener.BindServiceNameAsync(serviceId.AsString(), SocketProtectionLevel.BluetoothEncryptionAllowNullAuthentication).AsTask().Wait();
// Set the SDP attributes and start advertising
//InitializeServiceSdpAttributes(_provider);
_provider.StartAdvertising(listener);
_logger.Info("StartListen() out");
}