public void NewCall()
{
_audioChannel = new AudioChannel();
_audioChannel.SampleReady += AudioChannelSampleReady;
_rtpManager = new RTPManager(true, true);
_rtpManager = new RTPManager(true, false);
_rtpManager.OnRemoteVideoSampleReady += EncodedVideoSampleReceived;
_rtpManager.OnRemoteAudioSampleReady += RemoteAudioSampleReceived;
if (_audioChannel != null)
{
_audioChannel.StartRecording();
}
}
/// <summary>
/// Places an outgoing SIP call.
/// </summary>
/// <param name="destination">The SIP URI to place a call to. The destination can be a full SIP URI in which case the all will
/// be placed anonymously directly to that URI. Alternatively it can be just the user portion of a URI in which case it will
/// be sent to the configured SIP server.</param>
public void Call(string destination)
{
// Determine if this is a direct anonymous call or whether it should be placed using the pre-configured SIP server account.
SIPURI callURI = null;
string sipUsername = null;
string sipPassword = null;
string fromHeader = null;
if (destination.Contains("@") || m_sipServer == null)
{
// Anonymous call direct to SIP server specified in the URI.
callURI = SIPURI.ParseSIPURIRelaxed(destination);
}
else
{
// This call will use the pre-configured SIP account.
callURI = SIPURI.ParseSIPURIRelaxed(destination + "@" + m_sipServer);
sipUsername = m_sipUsername;
sipPassword = m_sipPassword;
fromHeader = (new SIPFromHeader(m_sipFromName, new SIPURI(m_sipUsername, m_sipServer, null), null)).ToString();
}
StatusMessage("Starting call to " + callURI.ToString() + ".");
m_uac = new SIPClientUserAgent(m_sipTransport, null, null, null, null);
m_uac.CallTrying += CallTrying;
m_uac.CallRinging += CallRinging;
m_uac.CallAnswered += CallAnswered;
m_uac.CallFailed += CallFailed;
_audioChannel = new AudioChannel();
// Get the SDP requesting that the public IP address be used if the host on the call destination is not a private IP address.
SDP sdp = _audioChannel.GetSDP(!(IPSocket.IsIPAddress(callURI.Host) && IPSocket.IsPrivateAddress(callURI.Host)));
SIPCallDescriptor callDescriptor = new SIPCallDescriptor(sipUsername, sipPassword, callURI.ToString(), fromHeader, null, null, null, null, SIPCallDirection.Out, SDP.SDP_MIME_CONTENTTYPE, sdp.ToString(), null);
m_uac.Call(callDescriptor);
}
public void EndCall()
{
if (_audioChannel != null)
{
_audioChannel.SampleReady -= AudioChannelSampleReady;
_audioChannel.Close();
_audioChannel = null;
}
_rtpManager.OnRemoteVideoSampleReady -= EncodedVideoSampleReceived;
_rtpManager.OnRemoteAudioSampleReady -= RemoteAudioSampleReceived;
_rtpManager.Close();
}
/// <summary>
/// Attempts to establish a new VoIP call via the Google Voice gateway.
/// </summary>
/// <param name="destination">The destination number to call.</param>
public void Call(string destination)
{
if (!_isBound)
{
throw new ApplicationException("The Google Voice call could not proceed as the XMPP client is not bound.");
}
else
{
_audioChannel = new AudioChannel();
// Call to Google Voice over XMPP & Gingle (Google's version of Jingle).
XMPPPhoneSession phoneSession = m_xmppClient.GetPhoneSession();
m_xmppCall = m_xmppClient.GetPhoneSession();
m_xmppCall.Accepted += XMPPAnswered;
m_xmppCall.Rejected += XMPPCallFailed;
m_xmppCall.Hungup += Hangup;
// Create the SDP packet to send to GV. Customise it with the ICE credentials that GV require.
SDP xmppSDP = _audioChannel.GetSDP(true);
xmppSDP.IcePwd = Crypto.GetRandomString(12);
m_localSTUNUFrag = Crypto.GetRandomString(8);
xmppSDP.IceUfrag = m_localSTUNUFrag;
m_xmppCall.PlaceCall(destination + "@" + GOOGLE_VOICE_HOST, xmppSDP);
}
}
