/// <summary>
/// Initialises the SIP transport layer.
/// </summary>
public async Task InitialiseSIP()
{
if (_isIntialised == false)
{
await Task.Run(() =>
{
_isIntialised = true;
if (String.IsNullOrEmpty(m_DnsServer) == false)
{
// Use a custom DNS server.
m_DnsServer = m_DnsServer.Contains(":") ? m_DnsServer : m_DnsServer + ":53";
DNSManager.SetDNSServers(new List <IPEndPoint> {
IPSocket.ParseSocketString(m_DnsServer)
});
}
// Configure the SIP transport layer.
m_sipTransport = new SIPTransport(SIPDNSManager.ResolveSIPService, new SIPTransactionEngine());
bool sipChannelAdded = false;
if (m_sipSocketsNode != null)
{
// Set up the SIP channels based on the app.config file.
List <SIPChannel> sipChannels = SIPTransportConfig.ParseSIPChannelsNode(m_sipSocketsNode);
if (sipChannels?.Count > 0)
{
m_sipTransport.AddSIPChannel(sipChannels);
sipChannelAdded = true;
}
}
if (sipChannelAdded == false)
{
// Use default options to set up a SIP channel.
int port = FreePort.FindNextAvailableUDPPort(_defaultSIPUdpPort);
var sipChannel = new SIPUDPChannel(new IPEndPoint(_defaultLocalAddress, port));
m_sipTransport.AddSIPChannel(sipChannel);
}
});
// Wire up the transport layer so incoming SIP requests have somewhere to go.
m_sipTransport.SIPTransportRequestReceived += SIPTransportRequestReceived;
// Log all SIP packets received to a log file.
m_sipTransport.SIPRequestInTraceEvent += (localSIPEndPoint, endPoint, sipRequest) => { _sipTraceLogger.Debug("Request Received : " + localSIPEndPoint + "<-" + endPoint + "\r\n" + sipRequest.ToString()); };
m_sipTransport.SIPRequestOutTraceEvent += (localSIPEndPoint, endPoint, sipRequest) => { _sipTraceLogger.Debug("Request Sent: " + localSIPEndPoint + "->" + endPoint + "\r\n" + sipRequest.ToString()); };
m_sipTransport.SIPResponseInTraceEvent += (localSIPEndPoint, endPoint, sipResponse) => { _sipTraceLogger.Debug("Response Received: " + localSIPEndPoint + "<-" + endPoint + "\r\n" + sipResponse.ToString()); };
m_sipTransport.SIPResponseOutTraceEvent += (localSIPEndPoint, endPoint, sipResponse) => { _sipTraceLogger.Debug("Response Sent: " + localSIPEndPoint + "->" + endPoint + "\r\n" + sipResponse.ToString()); };
}
}
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();
}
/// <summary>
/// Initialises the SIP transport layer.
/// </summary>
public async Task InitialiseSIP()
{
if (_isInitialised == false)
{
await Task.Run(() =>
{
_isInitialised = true;
if (String.IsNullOrEmpty(m_DnsServer) == false)
{
// Use a custom DNS server.
m_DnsServer = m_DnsServer.Contains(":") ? m_DnsServer : m_DnsServer + ":53";
DNSManager.SetDNSServers(new List <IPEndPoint> {
IPSocket.ParseSocketString(m_DnsServer)
});
}
// Configure the SIP transport layer.
SIPTransport = new SIPTransport();
bool sipChannelAdded = false;
if (m_sipSocketsNode != null)
{
// Set up the SIP channels based on the app.config file.
List <SIPChannel> sipChannels = SIPTransportConfig.ParseSIPChannelsNode(m_sipSocketsNode);
if (sipChannels?.Count > 0)
{
SIPTransport.AddSIPChannel(sipChannels);
sipChannelAdded = true;
}
}
if (sipChannelAdded == false)
{
// Use default options to set up a SIP channel.
SIPUDPChannel udpChannel = null;
try
{
udpChannel = new SIPUDPChannel(new IPEndPoint(IPAddress.Any, SIP_DEFAULT_PORT));
}
catch (SocketException bindExcp)
{
logger.Warn($"Socket exception attempting to bind UDP channel to port {SIP_DEFAULT_PORT}, will use random port. {bindExcp.Message}.");
udpChannel = new SIPUDPChannel(new IPEndPoint(IPAddress.Any, 0));
}
var tcpChannel = new SIPTCPChannel(new IPEndPoint(IPAddress.Any, udpChannel.Port));
SIPTransport.AddSIPChannel(new List <SIPChannel> {
udpChannel, tcpChannel
});
}
});
// Wire up the transport layer so incoming SIP requests have somewhere to go.
SIPTransport.SIPTransportRequestReceived += SIPTransportRequestReceived;
// Log all SIP packets received to a log file.
SIPTransport.SIPRequestInTraceEvent += SIPRequestInTraceEvent;
SIPTransport.SIPRequestOutTraceEvent += SIPRequestOutTraceEvent;
SIPTransport.SIPResponseInTraceEvent += SIPResponseInTraceEvent;
SIPTransport.SIPResponseOutTraceEvent += SIPResponseOutTraceEvent;
}
}
