private void CallEstablishCompleted(IAsyncResult ar)
{
Call call = ar.AsyncState as Call;
RealTimeException ex = null;
try
{
call.EndEstablish(ar);
Console.WriteLine("The call with Local Participant: " + call.Conversation.LocalParticipant +
" and Remote Participant: " + call.RemoteEndpoint.Participant +
" is now in the established state.");
}
catch (OperationFailureException opFailEx)
{
// OperationFailureException: Indicates failure to connect the
// call to the remote party.
// TODO (Left to the reader): Add error handling code here.
ex = opFailEx;
}
catch (RealTimeException exception)
{
// RealTimeException may be thrown on media or link-layer failures.
// TODO (Left to the reader): Add error handling code here.
ex = exception;
}
finally
{
if (ex != null)
{
Console.WriteLine(ex.ToString());
Console.WriteLine("Terminating the application due to failure");
_sampleCompleted.Set();
}
}
}
private void TransferringCallEstablishCompleted(IAsyncResult ar)
{
AudioVideoCall call = ar.AsyncState as AudioVideoCall;
RealTimeException ex = null;
try
{
call.EndEstablish(ar);
Console.WriteLine("");
Console.WriteLine("Now beginning the transfer...");
Console.WriteLine("");
// Now that both calls are connected and have been accepted by
// the called participant, we can use the transferor endpoint to
// transfer the call from the initial to the final. Note that the
// transferor endpoint retains it's position of control over both
// calls. This form of transfer is most suitable for a proxy
// application, where the proxying agent needs to remain in the
// signaling channel (For instance, for quality assurance purposes.)
call.BeginTransfer(_avCallTransferringtoInitial, TransferCallCompleted, call);
Console.WriteLine("The call with Local Participant: " + call.Conversation.LocalParticipant +
" and Remote Participant: " + call.RemoteEndpoint.Participant +
" is now in the established state.");
}
catch (OperationFailureException opFailEx)
{
// OperationFailureException: Indicates failure to connect the
// call to the remote party.
// TODO (Left to the reader): Add error handling code here.
ex = opFailEx;
}
catch (RealTimeException exception)
{
// RealTimeException may be thrown on media or link-layer failures.
// TODO (Left to the reader): Add error handling code here.
ex = exception;
}
finally
{
if (ex != null)
{
Console.WriteLine(ex.ToString());
Console.WriteLine("Terminating the application due to failure");
_sampleCompleted.Set();
}
}
}
private void CallEstablishCompleted(IAsyncResult ar)
{
Call call = ar.AsyncState as Call;
RealTimeException ex = null;
try
{
call.EndEstablish(ar);
Console.WriteLine("The call with Local Participant: " + call.Conversation.LocalParticipant +
" and Remote Participant: " + call.RemoteEndpoint.Participant +
" is now in the established state.");
// Setup the call object for the second call (AV), reusing the
// original conversation, and place the call (synchronously).
// Reuse of the conversation allows for effortless modality
// management. Either endpoint could add the new modality and
// place the call below.
AudioVideoCall audioVideoCall = new AudioVideoCall(_conversation);
audioVideoCall.BeginEstablish(AVCallEstablishCompleted, audioVideoCall);
}
catch (OperationFailureException opFailEx)
{
// OperationFailureException: Indicates failure to connect the
// call to the remote party.
// TODO (Left to the reader): Add error handling code here
ex = opFailEx;
}
catch (RealTimeException exception)
{
// RealTimeException may be thrown on media or link-layer failures.
// TODO (Left to the reader): Add error handling code here
ex = exception;
}
finally
{
if (ex != null)
{
Console.WriteLine("Completing application with error");
Console.WriteLine(ex.ToString());
_sampleCompleted.Set();
}
}
}
