private void OnToggleVideo(object sender, RoutedEventArgs e)
{
//****************************************************************************************************************************************
// Toggle for Video On/Off during call.
//****************************************************************************************************************************************
if (VideoOnToggled != null)
{
VideoOnToggled(BtnVideoOn.IsChecked ?? false);
}
if (_viewModel != null)
{
_viewModel.ToggleVideo(!BtnVideoOn.IsChecked ?? false);
}
SaveStates();
}