/// <summary>
/// Starts a registration agent for each of the supplied SIP accounts.
/// </summary>
/// <param name="sipTransport">The SIP transport to use for the registrations.</param>
/// <param name="sipAccounts">The list of SIP accounts to create a registration for.</param>
private static void StartRegistrations(SIPTransport sipTransport, List <SIPRegisterAccount> sipAccounts)
{
foreach (var sipAccount in sipAccounts)
{
var regUserAgent = new SIPRegistrationUserAgent(sipTransport, sipAccount.Username, sipAccount.Password, sipAccount.Domain, sipAccount.Expiry);
// Event handlers for the different stages of the registration.
regUserAgent.RegistrationFailed += (uri, err) => Log.LogError($"{uri.ToString()}: {err}");
regUserAgent.RegistrationTemporaryFailure += (uri, msg) => Log.LogWarning($"{uri.ToString()}: {msg}");
regUserAgent.RegistrationRemoved += (uri) => Log.LogError($"{uri.ToString()} registration failed.");
regUserAgent.RegistrationSuccessful += (uri) => Log.LogInformation($"{uri.ToString()} registration succeeded.");
// Start the thread to perform the initial registration and then periodically resend it.
regUserAgent.Start();
_registrations.TryAdd($"{sipAccount.Username}@{sipAccount.Domain}", regUserAgent);
}
}
static void Main(string[] args)
{
Console.WriteLine("SIPSorcery registration user agent example.");
Console.WriteLine("Press ctrl-c to exit.");
// Logging configuration. Can be ommitted if internal SIPSorcery debug and warning messages are not required.
var loggerFactory = new Microsoft.Extensions.Logging.LoggerFactory();
var loggerConfig = new LoggerConfiguration()
.Enrich.FromLogContext()
.MinimumLevel.Is(Serilog.Events.LogEventLevel.Debug)
.WriteTo.Console()
.CreateLogger();
loggerFactory.AddSerilog(loggerConfig);
SIPSorcery.Sys.Log.LoggerFactory = loggerFactory;
// If your default DNS server supports SRV records there is no need to set a specific DNS server.
DNSManager.SetDNSServers(new List <IPEndPoint> {
IPEndPoint.Parse("8.8.8.8:53")
});
// Set up a default SIP transport.
var sipTransport = new SIPTransport(SIPDNSManager.ResolveSIPService, new SIPTransactionEngine());
int port = FreePort.FindNextAvailableUDPPort(SIPConstants.DEFAULT_SIP_PORT);
var sipChannel = new SIPUDPChannel(new IPEndPoint(LocalIPConfig.GetDefaultIPv4Address(), port));
sipTransport.AddSIPChannel(sipChannel);
// Create a client user agent to maintain a periodic registration with a SIP server.
var regUserAgent = new SIPRegistrationUserAgent(
sipTransport,
"softphonesample",
"password",
"sipsorcery.com");
// Event handlers for the different stages of the registration.
regUserAgent.RegistrationFailed += (uri, err) => SIPSorcery.Sys.Log.Logger.LogError($"{uri.ToString()}: {err}");
regUserAgent.RegistrationTemporaryFailure += (uri, msg) => SIPSorcery.Sys.Log.Logger.LogWarning($"{uri.ToString()}: {msg}");
regUserAgent.RegistrationRemoved += (uri) => SIPSorcery.Sys.Log.Logger.LogError($"{uri.ToString()} registration failed.");
regUserAgent.RegistrationSuccessful += (uri) => SIPSorcery.Sys.Log.Logger.LogInformation($"{uri.ToString()} registration succeeded.");
// Start the thread to perform the initial registration and then periodically resend it.
regUserAgent.Start();
}
public void Init()
{
var port = FreePort.FindNextAvailableUDPPort(15090);
transport = new SIPTransport(SIPDNSManager.ResolveSIPService, new SIPTransactionEngine());
publicIPAddress = STUNClient.GetPublicIPAddress("stun.ekiga.net");
localIPEndPoint = IpAddressLookup.QueryRoutingInterface(asterisk, port);
var endpoint = new IPEndPoint(localIPEndPoint.Address, port);
var channel = new SIPUDPChannel(endpoint);
//channel.SIPMessageReceived += (SIPChannel sipChannel, SIPEndPoint remoteEndPoint, byte[] buffer) => { logger.Debug("Channel SIP message received " + channel.SIPChannelEndPoint + "<-" + remoteEndPoint); };
transport.AddSIPChannel(channel);
for (var i = 0; i < numbers.Length; i++)
{
var number = numbers[i];
var password = passwords[i];
var registration = new SIPRegistrationUserAgent(
transport,
null,
new SIPEndPoint(SIPProtocolsEnum.udp, publicIPAddress, port),
new SIPURI(number, asterisk, null, SIPSchemesEnum.sip, SIPProtocolsEnum.udp),
number,
password,
null,
asterisk,
new SIPURI(SIPSchemesEnum.sip, new SIPEndPoint(SIPProtocolsEnum.udp, publicIPAddress, port)),
180,
null,
null,
(e) => { logger.Debug(e.Message); }
);
logger.Debug($"{prefix} Registration attempt for {number}@{endpoint.Address}:{endpoint.Port}");
registration.RegistrationSuccessful += Registration_RegistrationSuccessful;
registration.RegistrationFailed += Registration_RegistrationFailed;
registration.Start();
registrations.Add(registration);
}
}
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,
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,
(message) => { logger.LogDebug(message.ToString()); });
_sipRegistrationClient.Start();
}
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);
}
private async void Initialise()
{
await _sipClient.InitialiseSIP();
_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>
/// An asynchronous task that attempts to initiate a registration.
/// </summary>
/// <param name="sipTransport">The transport object to use for the send.</param>
/// <param name="dst">The destination end point to send the request to.</param>
/// <returns>True if the expected response was received, false otherwise.</returns>
private static Task <bool> InitiateRegisterTaskAsync(SIPTransport sipTransport, SIPURI dst)
{
var ua = new SIPRegistrationUserAgent(sipTransport, "user", "password", dst.Host, 120);
try
{
bool result = false;
ManualResetEvent mre = new ManualResetEvent(false);
ua.RegistrationFailed += (uri, err) =>
{
result = false;
mre.Set();
};
ua.RegistrationTemporaryFailure += (uri, err) =>
{
result = false;
mre.Set();
};
ua.RegistrationSuccessful += (uri) =>
{
result = true;
mre.Set();
};
ua.Start();
mre.WaitOne(TimeSpan.FromSeconds(2000));
ua.Stop();
return(Task.FromResult(result));
}
catch (Exception excp)
{
logger.LogError($"Exception InitiateRegisterTaskAsync. {excp.Message}");
ua.Stop();
return(Task.FromResult(false));
}
}
static void Main()
{
Console.WriteLine("SIPSorcery registration user agent example.");
Console.WriteLine("Press ctrl-c to exit.");
AddConsoleLogger();
// Set up a default SIP transport.
var sipTransport = new SIPTransport();
EnableTraceLogs(sipTransport);
// Create a client user agent to maintain a periodic registration with a SIP server.
var regUserAgent = new SIPRegistrationUserAgent(sipTransport, USERNAME, PASSWORD, DOMAIN, EXPIRY);
// Event handlers for the different stages of the registration.
regUserAgent.RegistrationFailed += (uri, err) => Log.LogError($"{uri.ToString()}: {err}");
regUserAgent.RegistrationTemporaryFailure += (uri, msg) => Log.LogWarning($"{uri.ToString()}: {msg}");
regUserAgent.RegistrationRemoved += (uri) => Log.LogError($"{uri.ToString()} registration failed.");
regUserAgent.RegistrationSuccessful += (uri) => Log.LogInformation($"{uri.ToString()} registration succeeded.");
// Start the thread to perform the initial registration and then periodically resend it.
regUserAgent.Start();
ManualResetEvent exitMRE = new ManualResetEvent(false);
Console.CancelKeyPress += delegate(object sender, ConsoleCancelEventArgs e)
{
e.Cancel = true;
SIPSorcery.Sys.Log.Logger.LogInformation("Exiting...");
exitMRE.Set();
};
exitMRE.WaitOne();
regUserAgent.Stop();
sipTransport.Shutdown();
SIPSorcery.Net.DNSManager.Stop();
}
public void RegisterWithAdjustedRegisterHeaderTest()
{
logger.LogDebug("--> " + System.Reflection.MethodBase.GetCurrentMethod().Name);
logger.BeginScope(System.Reflection.MethodBase.GetCurrentMethod().Name);
SIPTransport transport = new SIPTransport();
MockSIPChannel channel = new MockSIPChannel(new System.Net.IPEndPoint(IPAddress.Any, 0));
transport.AddSIPChannel(channel);
SIPRegistrationUserAgent userAgent = new SIPRegistrationUserAgent(
transport,
null,
new SIPURI("alice", "192.168.11.50", null, SIPSchemesEnum.sip, SIPProtocolsEnum.udp),
"alice",
"password123",
null,
"192.168.11.50",
new SIPURI(SIPSchemesEnum.sip, IPAddress.Any, 0),
120,
null,
new[] { "My-Header: value" });
SIPContactHeader testHeader = new SIPContactHeader("Contact Name", new SIPURI("User", "Host", "Param=Value"));
userAgent.AdjustRegister = register =>
{
register.Header.Contact = new List <SIPContactHeader>
{
testHeader
};
return(register);
};
userAgent.Start();
channel.SIPMessageSent.WaitOne(5000);
Assert.Contains(testHeader.ToString(), channel.LastSIPMessageSent);
userAgent.Stop();
}
/// <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 = $"Listening on: {listeningEndPoints}";
_sipRegistrationClient = new SIPRegistrationUserAgent(
_sipTransportManager.SIPTransport,
m_sipUsername,
m_sipPassword,
m_sipServer,
REGISTRATION_EXPIRY);
_sipRegistrationClient.Start();
}
static void Main()
{
Console.WriteLine("SIPSorcery registration user agent example.");
Console.WriteLine("Press ctrl-c to exit.");
AddConsoleLogger();
// Set up a default SIP transport.
var sipTransport = new SIPTransport();
var sipChannel = new SIPUDPChannel(IPAddress.Any, 0);
sipTransport.AddSIPChannel(sipChannel);
EnableTraceLogs(sipTransport);
// Create a client user agent to maintain a periodic registration with a SIP server.
var regUserAgent = new SIPRegistrationUserAgent(
sipTransport,
"softphonesample",
"password",
"sipsorcery.com",
120);
int successCounter = 0;
ManualResetEvent taskCompleteMre = new ManualResetEvent(false);
// Event handlers for the different stages of the registration.
regUserAgent.RegistrationFailed += (uri, err) => SIPSorcery.Sys.Log.Logger.LogError($"{uri.ToString()}: {err}");
regUserAgent.RegistrationTemporaryFailure += (uri, msg) => SIPSorcery.Sys.Log.Logger.LogWarning($"{uri.ToString()}: {msg}");
regUserAgent.RegistrationRemoved += (uri) => SIPSorcery.Sys.Log.Logger.LogError($"{uri.ToString()} registration failed.");
regUserAgent.RegistrationSuccessful += (uri) =>
{
SIPSorcery.Sys.Log.Logger.LogInformation($"{uri.ToString()} registration succeeded.");
Interlocked.Increment(ref successCounter);
SIPSorcery.Sys.Log.Logger.LogInformation($"Successful registrations {successCounter} of {SUCCESS_REGISTRATION_COUNT}.");
if (successCounter == SUCCESS_REGISTRATION_COUNT)
{
taskCompleteMre.Set();
}
};
Console.CancelKeyPress += delegate(object sender, ConsoleCancelEventArgs e)
{
e.Cancel = true;
SIPSorcery.Sys.Log.Logger.LogInformation("Exiting...");
taskCompleteMre.Set();
};
// Start the thread to perform the initial registration and then periodically resend it.
regUserAgent.Start();
taskCompleteMre.WaitOne();
regUserAgent.Stop();
if (sipTransport != null)
{
SIPSorcery.Sys.Log.Logger.LogInformation("Shutting down SIP transport...");
sipTransport.Shutdown();
}
SIPSorcery.Net.DNSManager.Stop();
}
private const int SUCCESS_REGISTRATION_COUNT = 3; // Number of successful registrations to attempt before exiting process.
static void Main(string[] args)
{
Console.WriteLine("SIPSorcery registration user agent example.");
Console.WriteLine("Press ctrl-c to exit.");
// Logging configuration. Can be ommitted if internal SIPSorcery debug and warning messages are not required.
var loggerFactory = new Microsoft.Extensions.Logging.LoggerFactory();
var loggerConfig = new LoggerConfiguration()
.Enrich.FromLogContext()
.MinimumLevel.Is(Serilog.Events.LogEventLevel.Debug)
.WriteTo.Console()
.CreateLogger();
loggerFactory.AddSerilog(loggerConfig);
SIPSorcery.Sys.Log.LoggerFactory = loggerFactory;
// Set up a default SIP transport.
var sipTransport = new SIPTransport(SIPDNSManager.ResolveSIPService, new SIPTransactionEngine());
int port = FreePort.FindNextAvailableUDPPort(SIPConstants.DEFAULT_SIP_PORT);
var sipChannel = new SIPUDPChannel(new IPEndPoint(LocalIPConfig.GetDefaultIPv4Address(), port));
sipTransport.AddSIPChannel(sipChannel);
// Create a client user agent to maintain a periodic registration with a SIP server.
var regUserAgent = new SIPRegistrationUserAgent(
sipTransport,
"softphonesample",
"password",
"sipsorcery.com",
120);
int successCounter = 0;
ManualResetEvent taskCompleteMre = new ManualResetEvent(false);
// Event handlers for the different stages of the registration.
regUserAgent.RegistrationFailed += (uri, err) => SIPSorcery.Sys.Log.Logger.LogError($"{uri.ToString()}: {err}");
regUserAgent.RegistrationTemporaryFailure += (uri, msg) => SIPSorcery.Sys.Log.Logger.LogWarning($"{uri.ToString()}: {msg}");
regUserAgent.RegistrationRemoved += (uri) => SIPSorcery.Sys.Log.Logger.LogError($"{uri.ToString()} registration failed.");
regUserAgent.RegistrationSuccessful += (uri) =>
{
SIPSorcery.Sys.Log.Logger.LogInformation($"{uri.ToString()} registration succeeded.");
Interlocked.Increment(ref successCounter);
SIPSorcery.Sys.Log.Logger.LogInformation($"Successful registrations {successCounter} of {SUCCESS_REGISTRATION_COUNT}.");
if (successCounter == SUCCESS_REGISTRATION_COUNT)
{
taskCompleteMre.Set();
}
};
Console.CancelKeyPress += delegate(object sender, ConsoleCancelEventArgs e)
{
e.Cancel = true;
SIPSorcery.Sys.Log.Logger.LogInformation("Exiting...");
taskCompleteMre.Set();
};
// Start the thread to perform the initial registration and then periodically resend it.
regUserAgent.Start();
taskCompleteMre.WaitOne();
regUserAgent.Stop();
if (sipTransport != null)
{
SIPSorcery.Sys.Log.Logger.LogInformation("Shutting down SIP transport...");
sipTransport.Shutdown();
}
SIPSorcery.Net.DNSManager.Stop();
}
/// <summary>
/// An asynchronous task that attempts to initiate a registration.
/// </summary>
/// <param name="sipTransport">The transport object to use for the send.</param>
/// <param name="dst">The destination end point to send the request to.</param>
/// <returns>True if the expected response was received, false otherwise.</returns>
private static Task <bool> InitiateRegisterTaskAsync(SIPTransport sipTransport, SIPURI dst)
{
if (dst.User == null)
{
dst.User = "******";
}
var ua = new SIPRegistrationUserAgent(
sipTransport,
dst.User,
"password",
dst.ToString(),
120);
//var ua = new SIPRegistrationUserAgent(
// sipTransport,
// null,
// dst,
// dst.User,
// "password",
// null,
// dst.ToString(),
// new SIPURI(dst.Scheme, IPAddress.Any, 0),
// 120,
// null);
try
{
bool result = false;
ManualResetEvent mre = new ManualResetEvent(false);
ua.RegistrationFailed += (uri, err) =>
{
result = false;
mre.Set();
};
ua.RegistrationTemporaryFailure += (uri, err) =>
{
result = false;
mre.Set();
};
ua.RegistrationSuccessful += (uri) =>
{
result = true;
mre.Set();
};
ua.Start();
mre.WaitOne(TimeSpan.FromSeconds(2000));
ua.Stop(false);
return(Task.FromResult(result));
}
catch (Exception excp)
{
logger.LogError($"Exception InitiateRegisterTaskAsync. {excp.Message}");
ua.Stop();
return(Task.FromResult(false));
}
}
static void Main(string[] args)
{
Console.WriteLine("SIPSorcery registration user agent example.");
Console.WriteLine("Press ctrl-c to exit.");
Log = AddConsoleLogger(LogEventLevel.Verbose);
string server = DEFAULT_SERVER;
string username = DEFAULT_USERNAME;
string password = DEFAULT_PASSWORD;
int expiry = DEFAULT_EXPIRY;
int posn = 0;
while (posn < args?.Length && posn <= 3)
{
switch (posn)
{
case 0:
server = args[posn++].Trim();
break;
case 1:
username = args[posn++].Trim();
break;
case 2:
password = args[posn++].Trim();
break;
case 3:
int.TryParse(args[posn++], out expiry);
break;
}
}
Console.WriteLine("Attempting registration with:");
Console.WriteLine($" server: {server}");
Console.WriteLine($" username: {username}");
Console.WriteLine($" expiry: {expiry}");
// Set up a default SIP transport.
var sipTransport = new SIPTransport();
sipTransport.EnableTraceLogs();
// Create a client user agent to maintain a periodic registration with a SIP server.
var regUserAgent = new SIPRegistrationUserAgent(sipTransport, username, password, server, expiry);
// Event handlers for the different stages of the registration.
regUserAgent.RegistrationFailed += (uri, err) => Log.LogWarning($"{uri}: {err}");
regUserAgent.RegistrationTemporaryFailure += (uri, msg) => Log.LogWarning($"{uri}: {msg}");
regUserAgent.RegistrationRemoved += (uri) => Log.LogWarning($"{uri} registration failed.");
regUserAgent.RegistrationSuccessful += (uri) => Log.LogInformation($"{uri} registration succeeded.");
// Start the thread to perform the initial registration and then periodically resend it.
regUserAgent.Start();
ManualResetEvent exitMRE = new ManualResetEvent(false);
Console.CancelKeyPress += (object sender, ConsoleCancelEventArgs e) =>
{
e.Cancel = true;
Log.LogInformation("Exiting...");
exitMRE.Set();
};
exitMRE.WaitOne();
regUserAgent.Stop();
// Allow for unregister request to be sent (REGISTER with 0 expiry)
Task.Delay(1500).Wait();
sipTransport.Shutdown();
}
static void Main(string[] args)
{
Console.WriteLine("SIPSorcery call hold example.");
Console.WriteLine("Press ctrl-c to exit.");
// Plumbing code to facilitate a graceful exit.
CancellationTokenSource exitCts = new CancellationTokenSource(); // Cancellation token to stop the SIP transport and RTP stream.
bool isCallHungup = false;
bool hasCallFailed = false;
Utils.AddConsoleLogger();
// Set up a default SIP transport.
var sipTransport = new SIPTransport();
sipTransport.AddSIPChannel(new SIPUDPChannel(new IPEndPoint(IPAddress.Any, SIP_LISTEN_PORT)));
//EnableTraceLogs(sipTransport);
// Get the default speaker.
var(audioOutEvent, audioOutProvider) = Utils.GetAudioOutputDevice();
WaveInEvent waveInEvent = Utils.GetAudioInputDevice();
RTPMediaSession RtpMediaSession = null;
// Create a client user agent to maintain a periodic registration with a SIP server.
var regUserAgent = new SIPRegistrationUserAgent(
sipTransport,
"1772",
"aaa10800bd32115d86e548b8dfb21816",
"10.84.0.250",
120);
ManualResetEvent taskCompleteMre = new ManualResetEvent(false);
Console.CancelKeyPress += delegate(object sender, ConsoleCancelEventArgs e)
{
e.Cancel = true;
SIPSorcery.Sys.Log.Logger.LogInformation("Exiting...");
taskCompleteMre.Set();
};
// Start the thread to perform the initial registration and then periodically resend it.
regUserAgent.Start();
// Create a client/server user agent to place a call to a remote SIP server along with event handlers for the different stages of the call.
var userAgent = new SIPUserAgent(sipTransport, null);
userAgent.ClientCallTrying += (uac, resp) => Log.LogInformation($"{uac.CallDescriptor.To} Trying: {resp.StatusCode} {resp.ReasonPhrase}.");
userAgent.ClientCallRinging += (uac, resp) => Log.LogInformation($"{uac.CallDescriptor.To} Ringing: {resp.StatusCode} {resp.ReasonPhrase}.");
userAgent.ClientCallFailed += (uac, err) =>
{
Log.LogWarning($"{uac.CallDescriptor.To} Failed: {err}");
hasCallFailed = true;
exitCts.Cancel();
};
userAgent.ClientCallAnswered += (uac, resp) =>
{
if (resp.Status == SIPResponseStatusCodesEnum.Ok)
{
Log.LogInformation($"{uac.CallDescriptor.To} Answered: {resp.StatusCode} {resp.ReasonPhrase}.");
Utils.PlayRemoteMedia(RtpMediaSession, audioOutProvider);
}
else
{
Log.LogWarning($"{uac.CallDescriptor.To} Answered: {resp.StatusCode} {resp.ReasonPhrase}.");
hasCallFailed = true;
exitCts.Cancel();
}
};
userAgent.OnCallHungup += () =>
{
Log.LogInformation($"Call hungup by remote party.");
exitCts.Cancel();
};
userAgent.ServerCallCancelled += (uas) => Log.LogInformation("Incoming call cancelled by caller.");
sipTransport.SIPTransportRequestReceived += async(localEndPoint, remoteEndPoint, sipRequest) =>
{
if (sipRequest.Header.From != null &&
sipRequest.Header.From.FromTag != null &&
sipRequest.Header.To != null &&
sipRequest.Header.To.ToTag != null)
{
// This is an in-dialog request that will be handled directly by a user agent instance.
}
else if (sipRequest.Method == SIPMethodsEnum.INVITE)
{
if (userAgent?.IsCallActive == true)
{
Log.LogWarning($"Busy response returned for incoming call request from {remoteEndPoint}: {sipRequest.StatusLine}.");
// If we are already on a call return a busy response.
UASInviteTransaction uasTransaction = new UASInviteTransaction(sipTransport, sipRequest, null);
SIPResponse busyResponse = SIPResponse.GetResponse(sipRequest, SIPResponseStatusCodesEnum.BusyHere, null);
uasTransaction.SendFinalResponse(busyResponse);
}
else
{
Log.LogInformation($"Incoming call request from {remoteEndPoint}: {sipRequest.StatusLine}.");
var incomingCall = userAgent.AcceptCall(sipRequest);
RtpMediaSession = new RTPMediaSession(SDPMediaTypesEnum.audio, (int)SDPMediaFormatsEnum.PCMU, AddressFamily.InterNetwork);
RtpMediaSession.RemotePutOnHold += () => Log.LogInformation("Remote call party has placed us on hold.");
RtpMediaSession.RemoteTookOffHold += () => Log.LogInformation("Remote call party took us off hold.");
await userAgent.Answer(incomingCall, RtpMediaSession);
Utils.PlayRemoteMedia(RtpMediaSession, audioOutProvider);
waveInEvent.StartRecording();
Log.LogInformation($"Answered incoming call from {sipRequest.Header.From.FriendlyDescription()} at {remoteEndPoint}.");
}
}
else
{
Log.LogDebug($"SIP {sipRequest.Method} request received but no processing has been set up for it, rejecting.");
SIPResponse notAllowedResponse = SIPResponse.GetResponse(sipRequest, SIPResponseStatusCodesEnum.MethodNotAllowed, null);
await sipTransport.SendResponseAsync(notAllowedResponse);
}
};
// Wire up the RTP send session to the audio output device.
uint rtpSendTimestamp = 0;
waveInEvent.DataAvailable += (object sender, WaveInEventArgs args) =>
{
byte[] sample = new byte[args.Buffer.Length / 2];
int sampleIndex = 0;
for (int index = 0; index < args.BytesRecorded; index += 2)
{
var ulawByte = NAudio.Codecs.MuLawEncoder.LinearToMuLawSample(BitConverter.ToInt16(args.Buffer, index));
sample[sampleIndex++] = ulawByte;
}
if (RtpMediaSession != null)
{
RtpMediaSession.SendAudioFrame(rtpSendTimestamp, sample);
rtpSendTimestamp += (uint)(8000 / waveInEvent.BufferMilliseconds);
}
};
// At this point the call has been initiated and everything will be handled in an event handler.
Task.Run(async() =>
{
try
{
while (!exitCts.Token.WaitHandle.WaitOne(0))
{
var keyProps = Console.ReadKey();
if (keyProps.KeyChar == 'c')
{
if (!userAgent.IsCallActive)
{
RtpMediaSession = new RTPMediaSession(SDPMediaTypesEnum.audio, (int)SDPMediaFormatsEnum.PCMU, AddressFamily.InterNetwork);
RtpMediaSession.RemotePutOnHold += () => Log.LogInformation("Remote call party has placed us on hold.");
RtpMediaSession.RemoteTookOffHold += () => Log.LogInformation("Remote call party took us off hold.");
var callDescriptor = Utils.GetCallDescriptor(DEFAULT_DESTINATION_SIP_URI);
await userAgent.InitiateCall(callDescriptor, RtpMediaSession);
}
else
{
Log.LogWarning("There is already an active call.");
}
}
else if (keyProps.KeyChar == 'h')
{
// Place call on/off hold.
if (userAgent.IsCallActive)
{
if (RtpMediaSession.LocalOnHold)
{
Log.LogInformation("Taking the remote call party off hold.");
RtpMediaSession.TakeOffHold();
}
else
{
Log.LogInformation("Placing the remote call party on hold.");
RtpMediaSession.PutOnHold();
}
}
else
{
Log.LogWarning("There is no active call to put on hold.");
}
}
else if (keyProps.KeyChar == 't')
{
if (userAgent.IsCallActive)
{
var transferURI = SIPURI.ParseSIPURI(TRANSFER_DESTINATION_SIP_URI);
bool result = await userAgent.BlindTransfer(transferURI, TimeSpan.FromSeconds(TRANSFER_TIMEOUT_SECONDS), exitCts.Token);
if (result)
{
// If the transfer was accepted the original call will already have been hungup.
// Wait a second for the transfer NOTIFY request to arrive.
await Task.Delay(1000);
exitCts.Cancel();
}
else
{
Log.LogWarning($"Transfer to {TRANSFER_DESTINATION_SIP_URI} failed.");
}
}
else
{
Log.LogWarning("There is no active call to transfer.");
}
}
else if (keyProps.KeyChar == 'q')
{
// Quit application.
exitCts.Cancel();
}
}
}
catch (Exception excp)
{
SIPSorcery.Sys.Log.Logger.LogError($"Exception Key Press listener. {excp.Message}.");
}
});
// Wait for a signal saying the call failed, was cancelled with ctrl-c or completed.
exitCts.Token.WaitHandle.WaitOne();
// Ctrl-c will gracefully exit the call at any point.
Console.CancelKeyPress += delegate(object sender, ConsoleCancelEventArgs e)
{
e.Cancel = true;
exitCts.Cancel();
};
taskCompleteMre.WaitOne();
regUserAgent.Stop();
if (sipTransport != null)
{
SIPSorcery.Sys.Log.Logger.LogInformation("Shutting down SIP transport...");
sipTransport.Shutdown();
}
SIPSorcery.Net.DNSManager.Stop();
}
