/// <summary>
/// Set up the UI to present options for an established SIP call, i.e. hide the cancel
/// button and display they hangup button.
/// </summary>
private void SIPCallAnswered(SIPClient client)
{
_mediaManager.StartAudio();
if (client == _sipClients[0])
{
Dispatcher.DoOnUIThread(() =>
{
m_callButton.Visibility = Visibility.Collapsed;
m_cancelButton.Visibility = Visibility.Collapsed;
m_byeButton.Visibility = Visibility.Visible;
m_transferButton.Visibility = Visibility.Visible;
m_holdButton.Visibility = Visibility.Visible;
m_call2ActionsGrid.IsEnabled = true;
});
}
else if (client == _sipClients[1])
{
Dispatcher.DoOnUIThread(() =>
{
m_call2Button.Visibility = Visibility.Collapsed;
m_cancel2Button.Visibility = Visibility.Collapsed;
m_bye2Button.Visibility = Visibility.Visible;
m_transfer2Button.Visibility = Visibility.Visible;
m_hold2Button.Visibility = Visibility.Visible;
m_attendedTransferButton.Visibility = Visibility.Visible;
});
}
}
public SoftPhone()
{
InitializeComponent();
// Do some UI initialisation.
m_uasGrid.Visibility = Visibility.Collapsed;
m_cancelButton.Visibility = Visibility.Collapsed;
m_byeButton.Visibility = Visibility.Collapsed;
// Set up the SIP client. It can receive calls and initiate outgoing calls.
_sipClient = new SIPClient();
_sipClient.IncomingCall += SIPCallIncoming;
_sipClient.CallAnswer += SIPCallAnswered;
_sipClient.CallEnded += ResetToCallStartState;
_sipClient.StatusMessage += (message) => { SetStatusText(m_signallingStatus, message); };
// If a STUN server hostname has been specified start the STUN client to lookup and periodically update the public IP address of the host machine.
if (!SIPSoftPhoneState.STUNServerHostname.IsNullOrBlank())
{
_stunClient = new SoftphoneSTUNClient(SIPSoftPhoneState.STUNServerHostname);
_stunClient.PublicIPAddressDetected += (ip) =>
{
SIPSoftPhoneState.PublicIPAddress = ip;
UIHelper.DoOnUIThread(this, delegate
{
publicIPAddress.Content = $"Public IP: {ip}";
});
};
_stunClient.Run();
}
Initialise();
}
/// <summary>
/// When on a call key pad presses will send a DTMF RTP event to the remote
/// call party.
/// </summary>
/// <param name="sender">The button that was pressed.</param>
/// <param name="e"></param>
private async void KeyPadButton_Click(object sender, RoutedEventArgs e)
{
Button keyButton = sender as Button;
char keyPressed = (keyButton.Content as string).ToCharArray()[0];
SIPClient client = GetActiveCall();
if (client == null)
{
SetStatusText(m_signallingStatus, $"Key pressed {keyPressed} but no active SIP client to send DTMF to.");
}
else
{
SetStatusText(m_signallingStatus, $"Key pressed {keyPressed}.");
if (keyPressed >= 48 && keyPressed <= 57)
{
await client.SendDTMF((byte)(keyPressed - 48));
}
else if (keyPressed == '*')
{
await client.SendDTMF((byte)10);
}
else if (keyPressed == '#')
{
await client.SendDTMF((byte)11);
}
}
}
/// <summary>
/// Answer an incoming call on the SipClient
/// </summary>
/// <param name="client"></param>
/// <returns></returns>
private async Task AnswerCallAsync(SIPClient client)
{
bool result = await client.Answer();
if (result)
{
SIPCallAnswered(client);
}
else
{
ResetToCallStartState(client);
}
}
/// <summary>
/// The button to place an outgoing call.
/// </summary>
private async void CallButton_Click(object sender, RoutedEventArgs e)
{
SIPClient client = (sender == m_callButton) ? _sipClients[0] : _sipClients[1];
if (client == _sipClients[0] && m_uriEntryTextBox.Text.IsNullOrBlank())
{
SetStatusText(m_signallingStatus, "No call destination was specified.");
}
else if (client == _sipClients[1] && m_uriEntry2TextBox.Text.IsNullOrBlank())
{
SetStatusText(m_signallingStatus, "No call destination was specified.");
}
else
{
string callDestination = null;
if (client == _sipClients[0])
{
callDestination = m_uriEntryTextBox.Text;
SetStatusText(m_signallingStatus, $"calling {callDestination}.");
m_callButton.Visibility = Visibility.Collapsed;
m_cancelButton.Visibility = Visibility.Visible;
m_byeButton.Visibility = Visibility.Collapsed;
}
else if (client == _sipClients[1])
{
// Put the first call on hold.
if (_sipClients[0].IsCallActive)
{
//_sipClients[0].PutOnHold(_onHoldAudioScopeGL);
await _sipClients[0].PutOnHold();
m_holdButton.Visibility = Visibility.Collapsed;
m_offHoldButton.Visibility = Visibility.Visible;
}
callDestination = m_uriEntry2TextBox.Text;
SetStatusText(m_signallingStatus, $"calling {callDestination}.");
m_call2Button.Visibility = Visibility.Collapsed;
m_cancel2Button.Visibility = Visibility.Visible;
m_bye2Button.Visibility = Visibility.Collapsed;
}
// Start SIP call.
await client.Call(callDestination);
}
}
private async Task Initialize()
{
await _sipTransportManager.InitialiseSIP();
for (int i = 0; i < SIP_CLIENT_COUNT; i++)
{
var mediaSessionFactory = new RTPMediaSessionManager(_mediaManager, _musicOnHold);
var sipClient = new SIPClient(_sipTransportManager.SIPTransport, mediaSessionFactory);
sipClient.CallAnswer += SIPCallAnswered;
sipClient.CallEnded += ResetToCallStartState;
sipClient.StatusMessage += (client, message) => { SetStatusText(m_signallingStatus, message); };
sipClient.RemotePutOnHold += RemotePutOnHold;
sipClient.RemoteTookOffHold += RemoteTookOffHold;
_sipClients.Add(sipClient);
}
string listeningEndPoints = null;
foreach (var sipChannel in _sipTransportManager.SIPTransport.GetSIPChannels())
{
SIPEndPoint sipChannelEP = sipChannel.ListeningSIPEndPoint.CopyOf();
sipChannelEP.ChannelID = null;
listeningEndPoints += (listeningEndPoints == null) ? sipChannelEP.ToString() : $", {sipChannelEP}";
}
listeningEndPoint.Content = $"Listening on: {listeningEndPoints}";
_sipRegistrationClient = new SIPRegistrationUserAgent(
_sipTransportManager.SIPTransport,
null,
null,
new SIPURI(m_sipUsername, m_sipServer, null, SIPSchemesEnum.sip, SIPProtocolsEnum.udp),
m_sipUsername,
m_sipPassword,
null,
m_sipServer,
new SIPURI(m_sipUsername, IPAddress.Any.ToString(), null),
180,
null,
null,
(message) => { logger.Debug(message); });
_sipRegistrationClient.Start();
}
/// <summary>
/// We are taking the remote call party off hold.
/// </summary>
private void OffHoldButton_Click(object sender, System.Windows.RoutedEventArgs e)
{
SIPClient client = (sender == m_offHoldButton) ? _sipClients[0] : _sipClients[1];
if (client == _sipClients[0])
{
m_holdButton.Visibility = Visibility.Visible;
m_offHoldButton.Visibility = Visibility.Collapsed;
}
else if (client == _sipClients[1])
{
m_hold2Button.Visibility = Visibility.Visible;
m_offHold2Button.Visibility = Visibility.Collapsed;
}
client.TakeOffHold();
}
/// <summary>
/// We are taking the remote call party off hold.
/// </summary>
private void OffHoldButton_Click(object sender, System.Windows.RoutedEventArgs e)
{
SIPClient client = (sender == m_offHoldButton) ? _sipClients[0] : _sipClients[1];
if (client == _sipClients[0])
{
m_holdButton.Visibility = Visibility.Visible;
m_offHoldButton.Visibility = Visibility.Collapsed;
//_sipClients[0].MediaSession.OnHoldAudioScopeSampleReady -= _onHoldAudioScope.ProcessSample;
}
else if (client == _sipClients[1])
{
m_hold2Button.Visibility = Visibility.Visible;
m_offHold2Button.Visibility = Visibility.Collapsed;
}
client.TakeOffHold();
}
/// <summary>
/// Reset the UI elements to their initial state at the end of a call.
/// </summary>
private void ResetToCallStartState(SIPClient sipClient)
{
if (sipClient == null || sipClient == _sipClients[0])
{
Dispatcher.DoOnUIThread(() =>
{
m_callButton.Visibility = Visibility.Visible;
m_cancelButton.Visibility = Visibility.Collapsed;
m_byeButton.Visibility = Visibility.Collapsed;
m_answerButton.Visibility = Visibility.Collapsed;
m_rejectButton.Visibility = Visibility.Collapsed;
m_redirectButton.Visibility = Visibility.Collapsed;
m_transferButton.Visibility = Visibility.Collapsed;
m_holdButton.Visibility = Visibility.Collapsed;
m_offHoldButton.Visibility = Visibility.Collapsed;
_client0Video.Visibility = Visibility.Collapsed;
SetStatusText(m_signallingStatus, "Ready");
//if (m_useAudioScope && _sipClients?.Count > 0 && sipClient == _sipClients[0] && sipClient.MediaSession != null)
//{
// sipClient.MediaSession.OnAudioScopeSampleReady -= _audioScope0.ProcessSample;
//}
});
}
if (sipClient == null || sipClient == _sipClients[1])
{
Dispatcher.DoOnUIThread(() =>
{
m_call2Button.Visibility = Visibility.Visible;
m_cancel2Button.Visibility = Visibility.Collapsed;
m_bye2Button.Visibility = Visibility.Collapsed;
m_answer2Button.Visibility = Visibility.Collapsed;
m_reject2Button.Visibility = Visibility.Collapsed;
m_redirect2Button.Visibility = Visibility.Collapsed;
m_transfer2Button.Visibility = Visibility.Collapsed;
m_hold2Button.Visibility = Visibility.Collapsed;
m_offHold2Button.Visibility = Visibility.Collapsed;
m_attendedTransferButton.Visibility = Visibility.Collapsed;
_client1Video.Visibility = Visibility.Collapsed;
SetStatusText(m_signallingStatus, "Ready");
});
}
}
/// <summary>
/// The remote call party has taken us off hold.
/// </summary>
private void RemoteTookOffHold(SIPClient sipClient)
{
SetStatusText(m_signallingStatus, "Taken off hold by remote party.");
if (sipClient == _sipClients[0])
{
Dispatcher.DoOnUIThread(() =>
{
m_holdButton.Visibility = Visibility.Visible;
});
}
else if (sipClient == _sipClients[1])
{
Dispatcher.DoOnUIThread(() =>
{
m_hold2Button.Visibility = Visibility.Visible;
});
}
}
private SIPRegistrationUserAgent _sipRegistrationClient; // Can be used to register with an external SIP provider if incoming calls are required.
public SoftPhone()
{
InitializeComponent();
// Do some UI initialisation.
m_uasGrid.Visibility = Visibility.Collapsed;
m_cancelButton.Visibility = Visibility.Collapsed;
m_byeButton.Visibility = Visibility.Collapsed;
// Set up the SIP client. It can receive calls and initiate outgoing calls.
_sipClient = new SIPClient();
_sipClient.IncomingCall += SIPCallIncoming;
_sipClient.CallAnswer += SIPCallAnswered;
_sipClient.CallEnded += ResetToCallStartState;
_sipClient.StatusMessage += (message) => { SetStatusText(m_signallingStatus, message); };
// Set up the Gingle client.
_gingleClient = new GingleClient();
_gingleClient.CallEnded += ResetToCallStartState;
_gingleClient.StatusMessage += (message) => { SetStatusText(m_signallingStatus, message); };
// Lookup and periodically check the public IP address of the host machine.
_stunClient = new SoftphoneSTUNClient();
// Comment this out if you don't want the app to register with your SIP server.
_sipRegistrationClient = new SIPRegistrationUserAgent(
_sipClient.SIPClientTransport,
null,
null,
new SIPURI(m_sipUsername, m_sipServer, null, SIPSchemesEnum.sip, SIPProtocolsEnum.udp),
m_sipUsername,
m_sipPassword,
null,
m_sipServer,
new SIPURI(m_sipUsername, _sipClient.SIPClientTransport.GetDefaultSIPEndPoint().GetIPEndPoint().ToString(), null),
180,
null,
null,
(message) => { logger.Debug(message); });
_sipRegistrationClient.Start();
//videoElement.NewVideoSample += new EventHandler<WPFMediaKit.DirectShow.MediaPlayers.VideoSampleArgs>(videoElement_NewVideoSample);
}
public SoftPhone()
{
InitializeComponent();
// Do some UI initialisation.
m_uasGrid.Visibility = Visibility.Collapsed;
m_cancelButton.Visibility = Visibility.Collapsed;
m_byeButton.Visibility = Visibility.Collapsed;
// Set up the SIP client. It can receive calls and initiate outgoing calls.
_sipClient = new SIPClient();
_sipClient.IncomingCall += SIPCallIncoming;
_sipClient.CallAnswer += SIPCallAnswered;
_sipClient.CallEnded += ResetToCallStartState;
_sipClient.StatusMessage += (message) => { SetStatusText(m_signallingStatus, message); };
// Set up the Gingle client.
_gingleClient = new GingleClient();
_gingleClient.CallEnded += ResetToCallStartState;
_gingleClient.StatusMessage += (message) => { SetStatusText(m_signallingStatus, message); };
// Lookup and periodically check the public IP address of the host machine.
_stunClient = new SoftphoneSTUNClient();
// Comment this out if you don't want the app to register with your SIP server.
_sipRegistrationClient = new SIPRegistrationUserAgent(
_sipClient.SIPClientTransport,
null,
null,
new SIPURI(m_sipUsername, m_sipServer, null, SIPSchemesEnum.sip, SIPProtocolsEnum.udp),
m_sipUsername,
m_sipPassword,
null,
m_sipServer,
new SIPURI(m_sipUsername, _sipClient.SIPClientTransport.GetDefaultSIPEndPoint().GetIPEndPoint().ToString(), null),
180,
null,
null,
(message) => { logger.Debug(message); });
_sipRegistrationClient.Start();
//videoElement.NewVideoSample += new EventHandler<WPFMediaKit.DirectShow.MediaPlayers.VideoSampleArgs>(videoElement_NewVideoSample);
}
/// <summary>
/// The remote call party put us on hold.
/// </summary>
private void RemotePutOnHold(SIPClient sipClient)
{
// We can't put them on hold if they've already put us on hold.
SetStatusText(m_signallingStatus, "Put on hold by remote party.");
if (sipClient == _sipClients[0])
{
Dispatcher.DoOnUIThread(() =>
{
m_holdButton.Visibility = Visibility.Collapsed;
});
}
else if (sipClient == _sipClients[1])
{
Dispatcher.DoOnUIThread(() =>
{
m_hold2Button.Visibility = Visibility.Collapsed;
});
}
}
public SoftPhone()
{
InitializeComponent();
// Do some UI initialisation.
m_uasGrid.Visibility = Visibility.Collapsed;
m_cancelButton.Visibility = Visibility.Collapsed;
m_byeButton.Visibility = Visibility.Collapsed;
// Set up the SIP client. It can receive calls and initiate outgoing calls.
_sipClient = new SIPClient();
_sipClient.IncomingCall += SIPCallIncoming;
_sipClient.CallAnswer += SIPCallAnswered;
_sipClient.CallEnded += ResetToCallStartState;
_sipClient.StatusMessage += (message) => { SetStatusText(m_signallingStatus, message); };
// Lookup and periodically check the public IP address of the host machine.
_stunClient = new SoftphoneSTUNClient();
Initialise();
}
/// <summary>
/// Reset the UI elements to their initial state at the end of a call.
/// </summary>
private void ResetToCallStartState(SIPClient sipClient)
{
if (sipClient == null || sipClient == _sipClients[0])
{
Dispatcher.DoOnUIThread(() =>
{
m_callButton.Visibility = Visibility.Visible;
m_cancelButton.Visibility = Visibility.Collapsed;
m_byeButton.Visibility = Visibility.Collapsed;
m_answerButton.Visibility = Visibility.Collapsed;
m_rejectButton.Visibility = Visibility.Collapsed;
m_redirectButton.Visibility = Visibility.Collapsed;
m_transferButton.Visibility = Visibility.Collapsed;
m_holdButton.Visibility = Visibility.Collapsed;
m_offHoldButton.Visibility = Visibility.Collapsed;
_client0Video.Visibility = Visibility.Collapsed;
SetStatusText(m_signallingStatus, "Ready");
});
}
if (sipClient == null || sipClient == _sipClients[1])
{
Dispatcher.DoOnUIThread(() =>
{
m_call2Button.Visibility = Visibility.Visible;
m_cancel2Button.Visibility = Visibility.Collapsed;
m_bye2Button.Visibility = Visibility.Collapsed;
m_answer2Button.Visibility = Visibility.Collapsed;
m_reject2Button.Visibility = Visibility.Collapsed;
m_redirect2Button.Visibility = Visibility.Collapsed;
m_transfer2Button.Visibility = Visibility.Collapsed;
m_hold2Button.Visibility = Visibility.Collapsed;
m_offHold2Button.Visibility = Visibility.Collapsed;
m_attendedTransferButton.Visibility = Visibility.Collapsed;
_client1Video.Visibility = Visibility.Collapsed;
SetStatusText(m_signallingStatus, "Ready");
});
}
}
/// <summary>
/// Initialises the SIP clients and transport.
/// </summary>
private async Task Initialize()
{
await _sipTransportManager.InitialiseSIP();
for (int i = 0; i < SIP_CLIENT_COUNT; i++)
{
var sipClient = new SIPClient(_sipTransportManager.SIPTransport);
sipClient.CallAnswer += SIPCallAnswered;
sipClient.CallEnded += ResetToCallStartState;
sipClient.StatusMessage += (client, message) => { SetStatusText(m_signallingStatus, message); };
sipClient.RemotePutOnHold += RemotePutOnHold;
sipClient.RemoteTookOffHold += RemoteTookOffHold;
_sipClients.Add(sipClient);
}
string listeningEndPoints = null;
foreach (var sipChannel in _sipTransportManager.SIPTransport.GetSIPChannels())
{
SIPEndPoint sipChannelEP = sipChannel.ListeningSIPEndPoint.CopyOf();
sipChannelEP.ChannelID = null;
listeningEndPoints += (listeningEndPoints == null) ? sipChannelEP.ToString() : $", {sipChannelEP}";
}
listeningEndPoint.Content = $"Listening on: {listeningEndPoints}";
_sipRegistrationClient = new SIPRegistrationUserAgent(
_sipTransportManager.SIPTransport,
m_sipUsername,
m_sipPassword,
m_sipServer,
REGISTRATION_EXPIRY);
_sipRegistrationClient.Start();
}
/// <summary>
/// Answer an incoming call on the SipClient
/// </summary>
/// <param name="client"></param>
/// <returns></returns>
private async Task AnswerCallAsync(SIPClient client)
{
await client.Answer();
_mediaManager.StartAudio();
if (client == _sipClients[0])
{
m_answerButton.Visibility = Visibility.Collapsed;
m_rejectButton.Visibility = Visibility.Collapsed;
m_redirectButton.Visibility = Visibility.Collapsed;
m_byeButton.Visibility = Visibility.Visible;
m_transferButton.Visibility = Visibility.Visible;
m_holdButton.Visibility = Visibility.Visible;
m_call2ActionsGrid.IsEnabled = true;
}
else if (client == _sipClients[1])
{
// Put the first call on hold.
if (_sipClients[0].IsCallActive)
{
_sipClients[0].PutOnHold();
m_holdButton.Visibility = Visibility.Collapsed;
m_offHoldButton.Visibility = Visibility.Visible;
}
m_answer2Button.Visibility = Visibility.Collapsed;
m_reject2Button.Visibility = Visibility.Collapsed;
m_redirect2Button.Visibility = Visibility.Collapsed;
m_bye2Button.Visibility = Visibility.Visible;
m_transfer2Button.Visibility = Visibility.Visible;
m_hold2Button.Visibility = Visibility.Visible;
m_attendedTransferButton.Visibility = Visibility.Visible;
}
}
public SoftPhone()
{
InitializeComponent();
// Do some UI initialisation.
m_uasGrid.Visibility = Visibility.Collapsed;
m_cancelButton.Visibility = Visibility.Collapsed;
m_byeButton.Visibility = Visibility.Collapsed;
// Set up the SIP client. It can receive calls and initiate outgoing calls.
_sipClient = new SIPClient();
_sipClient.IncomingCall += SIPCallIncoming;
_sipClient.CallAnswer += SIPCallAnswered;
_sipClient.CallEnded += ResetToCallStartState;
_sipClient.StatusMessage += (message) => { SetStatusText(m_signallingStatus, message); };
// Lookup and periodically check the public IP address of the host machine.
_stunClient = new SoftphoneSTUNClient();
// Uncomment this if you want the app to register with your SIP server.
//_sipRegistrationClient = new SIPRegistrationUserAgent(
// _sipClient.SIPClientTransport,
// null,
// null,
// new SIPURI(m_sipUsername, m_sipServer, null, SIPSchemesEnum.sip, SIPProtocolsEnum.udp),
// m_sipUsername,
// m_sipPassword,
// null,
// m_sipServer,
// new SIPURI(m_sipUsername, _sipClient.SIPClientTransport.GetDefaultSIPEndPoint().GetIPEndPoint().ToString(), null),
// 180,
// null,
// null,
// (message) => { logger.Debug(message); });
//_sipRegistrationClient.Start();
}
private SoftphoneSTUNClient _stunClient; // STUN client to periodically check the public IP address.
#endregion Fields
#region Constructors
public SoftPhone()
{
InitializeComponent();
// Do some UI initialisation.
m_uasGrid.Visibility = Visibility.Collapsed;
m_cancelButton.Visibility = Visibility.Collapsed;
m_byeButton.Visibility = Visibility.Collapsed;
// Set up the SIP client. It can receive calls and initiate outgoing calls.
_sipClient = new SIPClient();
_sipClient.IncomingCall += SIPCallIncoming;
_sipClient.CallAnswer += SIPCallAnswered;
_sipClient.CallEnded += ResetToCallStartState;
_sipClient.StatusMessage += (message) => { SetStatusText(m_signallingStatus, message); };
// Lookup and periodically check the public IP address of the host machine.
_stunClient = new SoftphoneSTUNClient();
// Uncomment this if you want the app to register with your SIP server.
//_sipRegistrationClient = new SIPRegistrationUserAgent(
// _sipClient.SIPClientTransport,
// null,
// null,
// new SIPURI(m_sipUsername, m_sipServer, null, SIPSchemesEnum.sip, SIPProtocolsEnum.udp),
// m_sipUsername,
// m_sipPassword,
// null,
// m_sipServer,
// new SIPURI(m_sipUsername, _sipClient.SIPClientTransport.GetDefaultSIPEndPoint().GetIPEndPoint().ToString(), null),
// 180,
// null,
// null,
// (message) => { logger.Debug(message); });
//_sipRegistrationClient.Start();
}
/// <summary>
/// Set up the UI to present options for an established SIP call, i.e. hide the cancel
/// button and display they hangup button.
/// </summary>
private void SIPCallAnswered(SIPClient client)
{
if (client == _sipClients[0])
{
if (_sipClients[1].IsCallActive && !_sipClients[1].IsOnHold)
{
_sipClients[1].PutOnHold();
}
Dispatcher.DoOnUIThread(() =>
{
m_answerButton.Visibility = Visibility.Collapsed;
m_rejectButton.Visibility = Visibility.Collapsed;
m_redirectButton.Visibility = Visibility.Collapsed;
m_callButton.Visibility = Visibility.Collapsed;
m_cancelButton.Visibility = Visibility.Collapsed;
m_byeButton.Visibility = Visibility.Visible;
m_transferButton.Visibility = Visibility.Visible;
m_holdButton.Visibility = Visibility.Visible;
m_call2ActionsGrid.IsEnabled = true;
if (_sipClients[0].MediaSession.HasVideo)
{
_sipClients[0].MediaSession.OnVideoSampleReady += (sample, width, height, stride) => VideoSampleReady(sample, width, height, stride, _client0WriteableBitmap, _client0Video);
_client0Video.Visibility = Visibility.Visible;
}
});
}
else if (client == _sipClients[1])
{
Dispatcher.DoOnUIThread(() =>
{
m_answer2Button.Visibility = Visibility.Collapsed;
m_reject2Button.Visibility = Visibility.Collapsed;
m_redirect2Button.Visibility = Visibility.Collapsed;
m_call2Button.Visibility = Visibility.Collapsed;
m_cancel2Button.Visibility = Visibility.Collapsed;
m_bye2Button.Visibility = Visibility.Visible;
m_transfer2Button.Visibility = Visibility.Visible;
m_hold2Button.Visibility = Visibility.Visible;
m_attendedTransferButton.Visibility = Visibility.Visible;
if (_sipClients[1].MediaSession.HasVideo)
{
_sipClients[1].MediaSession.OnVideoSampleReady += (sample, width, height, stride) => VideoSampleReady(sample, width, height, stride, _client1WriteableBitmap, _client1Video);
_client1Video.Visibility = Visibility.Visible;
}
});
if (_sipClients[0].IsCallActive)
{
if (!_sipClients[0].IsOnHold)
{
_sipClients[0].PutOnHold();
}
Dispatcher.DoOnUIThread(() =>
{
m_holdButton.Visibility = Visibility.Collapsed;
m_offHoldButton.Visibility = Visibility.Visible;
m_attendedTransferButton.Visibility = Visibility.Visible;
});
}
}
}
/// <summary>
/// The button to place an outgoing call.
/// </summary>
private void CallButton_Click(object sender, RoutedEventArgs e)
{
SIPClient client = (sender == m_callButton) ? _sipClients[0] : _sipClients[1];
if (client == _sipClients[0] && m_uriEntryTextBox.Text.IsNullOrBlank())
{
SetStatusText(m_signallingStatus, "No call destination was specified.");
}
else if (client == _sipClients[1] && m_uriEntry2TextBox.Text.IsNullOrBlank())
{
SetStatusText(m_signallingStatus, "No call destination was specified.");
}
else if (m_uriEntryTextBox.Text == VIDEO_LOOPBACK_CALL_DESTINATION)
{
if (_localVideoMode == null)
{
LocalVideoError("Please start the local video and try again.");
}
else
{
SetStatusText(m_signallingStatus, "Running video loopback test...");
m_callButton.Visibility = Visibility.Collapsed;
m_cancelButton.Visibility = Visibility.Collapsed;
m_byeButton.Visibility = Visibility.Visible;
_mediaManager.RunLoopbackTest();
}
}
else
{
string callDestination = null;
if (client == _sipClients[0])
{
callDestination = m_uriEntryTextBox.Text;
SetStatusText(m_signallingStatus, $"calling {callDestination}.");
m_callButton.Visibility = Visibility.Collapsed;
m_cancelButton.Visibility = Visibility.Visible;
m_byeButton.Visibility = Visibility.Collapsed;
}
else if (client == _sipClients[1])
{
// Put the first call on hold.
if (_sipClients[0].IsCallActive)
{
_sipClients[0].PutOnHold();
m_holdButton.Visibility = Visibility.Collapsed;
m_offHoldButton.Visibility = Visibility.Visible;
}
callDestination = m_uriEntry2TextBox.Text;
SetStatusText(m_signallingStatus, $"calling {callDestination}.");
m_call2Button.Visibility = Visibility.Collapsed;
m_cancel2Button.Visibility = Visibility.Visible;
m_bye2Button.Visibility = Visibility.Collapsed;
}
// Start SIP call.
Task.Run(() => client.Call(callDestination));
}
}
/// <summary>
/// Answer an incoming call on the SipClient
/// </summary>
/// <param name="client"></param>
/// <returns></returns>
private async Task AnswerCallAsync(SIPClient client)
{
await client.Answer();
SIPCallAnswered(client);
}
/// <summary>
/// Set up the UI to present options for an established SIP call, i.e. hide the cancel
/// button and display they hangup button.
/// </summary>
private async void SIPCallAnswered(SIPClient client)
{
if (client == _sipClients[0])
{
if (_sipClients[1].IsCallActive && !_sipClients[1].IsOnHold)
{
//_sipClients[1].PutOnHold(_onHoldAudioScopeGL);
await _sipClients[1].PutOnHold();
}
Dispatcher.DoOnUIThread(() =>
{
m_answerButton.Visibility = Visibility.Collapsed;
m_rejectButton.Visibility = Visibility.Collapsed;
m_redirectButton.Visibility = Visibility.Collapsed;
m_callButton.Visibility = Visibility.Collapsed;
m_cancelButton.Visibility = Visibility.Collapsed;
m_byeButton.Visibility = Visibility.Visible;
m_transferButton.Visibility = Visibility.Visible;
m_holdButton.Visibility = Visibility.Visible;
m_call2ActionsGrid.IsEnabled = true;
if (_sipClients[0].MediaSession.HasVideo)
{
_sipClients[0].MediaSession.OnVideoSinkSample += (sample, width, height, stride, pixelFormat) => VideoSampleReady(sample, width, height, stride, pixelFormat, _client0WriteableBitmap, _client0Video);
_client0Video.Visibility = Visibility.Visible;
}
//if (m_useAudioScope)
//{
// _sipClients[0].MediaSession.OnAudioScopeSampleReady += _audioScope0.ProcessSample;
//}
});
}
else if (client == _sipClients[1])
{
Dispatcher.DoOnUIThread(() =>
{
m_answer2Button.Visibility = Visibility.Collapsed;
m_reject2Button.Visibility = Visibility.Collapsed;
m_redirect2Button.Visibility = Visibility.Collapsed;
m_call2Button.Visibility = Visibility.Collapsed;
m_cancel2Button.Visibility = Visibility.Collapsed;
m_bye2Button.Visibility = Visibility.Visible;
m_transfer2Button.Visibility = Visibility.Visible;
m_hold2Button.Visibility = Visibility.Visible;
m_attendedTransferButton.Visibility = Visibility.Visible;
if (_sipClients[1].MediaSession.HasVideo)
{
_sipClients[1].MediaSession.OnVideoSinkSample += (sample, width, height, stride, pixelFormat) => VideoSampleReady(sample, width, height, stride, pixelFormat, _client1WriteableBitmap, _client1Video);
_client1Video.Visibility = Visibility.Visible;
}
});
if (_sipClients[0].IsCallActive)
{
if (!_sipClients[0].IsOnHold)
{
//_sipClients[0].PutOnHold(_onHoldAudioScopeGL);
await _sipClients[0].PutOnHold();
}
Dispatcher.DoOnUIThread(() =>
{
m_holdButton.Visibility = Visibility.Collapsed;
m_offHoldButton.Visibility = Visibility.Visible;
m_attendedTransferButton.Visibility = Visibility.Visible;
});
}
}
}
