/// <summary>
/// This will be called when an error occurred during the call.
/// </summary>
private void Call_CallErrorOccured(object sender, VoIPEventArgs <CallError> e)
{
IPhoneCall call = sender as IPhoneCall;
if (sender == null)
{
return;
}
MediaHandlers.DetachAudio();
MediaHandlers.DetachVideo();
DisposeCall(call);
OnPhoneCallStateChanged(call);
}
/// <summary>
/// This will be called when the state of a call has changed.
/// </summary>
private void Call_CallStateChanged(object sender, VoIPEventArgs <CallState> e)
{
IPhoneCall call = sender as IPhoneCall;
if (call == null)
{
return;
}
CallState state = e.Item;
OnPhoneCallStateChanged(call);
CheckStopRingback();
CheckStopRingtone();
// start ringtones
if (state.IsRinging())
{
if (call.IsIncoming)
{
MediaHandlers.StartRingtone();
}
else
{
MediaHandlers.StartRingback();
}
return;
}
// call has been answered
if (state == CallState.Answered)
{
return;
}
// attach media to the selected call when the remote party sends media data
if (state.IsRemoteMediaCommunication())
{
if (SelectedCall.Equals(call))
{
MediaHandlers.AttachAudio(call);
MediaHandlers.AttachAudio(call);
}
return;
}
// detach media from the selected call in hold state or when the call has ended
if (state == CallState.LocalHeld || state == CallState.InactiveHeld || state.IsCallEnded())
{
if (SelectedCall.Equals(call))
{
MediaHandlers.DetachAudio();
MediaHandlers.DetachVideo();
}
}
// call has ended, clean up
if (state.IsCallEnded())
{
DisposeCall(call);
CallHistory.Add(call);
PhoneCalls.Remove(call);
return;
}
}