first commit of chan_h323

git-svn-id: http://svn.digium.com/svn/asterisk/trunk@724 f38db490-d61c-443f-a65b-d21fe96a405b

1 files changed, 1018 insertions, 0 deletions

diff --git a/channels/h323/ast_h323.cpp b/channels/h323/ast_h323.cpp
new file mode 100755
index 000000000..831092fdd
--- /dev/null
+++ b/channels/h323/ast_h323.cpp
@@ -0,0 +1,1018 @@
+/*
+ * ast_h323.cpp
+ *
+ * OpenH323 Channel Driver for ASTERISK PBX.
+ *			By  Jeremy McNamara
+ *			For The NuFone Network
+ * 
+ * This code has been derived from code created by 
+ *		Michael Manousos and Mark Spencer
+ *
+ * This file is part of the chan_h323 driver for Asterisk
+ *
+ * chan_h323 is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version. 
+ *
+ * chan_h323 is distributed WITHOUT ANY WARRANTY; without even 
+ * the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
+ * PURPOSE. See the GNU General Public License for more details. 
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 
+ *
+ */
+#include "ast_h323.h"
+#include "h323t38.h"
+
+
+/* PWlib Required Components  */
+#define MAJOR_VERSION 0
+#define MINOR_VERSION 1
+#define BUILD_TYPE    ReleaseCode
+#define BUILD_NUMBER  0
+
+/** Counter for the number of connections */
+int channelsOpen;
+
+/* DTMF Mode */
+int mode = H323_DTMF_RFC2833;
+
+/** Options for connections creation */
+BOOL	noFastStart;
+BOOL	noH245Tunnelling;
+BOOL	noSilenceSuppression;
+WORD	jitter;
+
+/**
+ * We assume that only one endPoint should exist.
+ * The application cannot run the h323_end_point_create() more than once
+ * FIXME: Singleton this, for safety
+ */
+MyH323EndPoint *endPoint = NULL;
+
+/** PWLib entry point */
+MyProcess *localProcess = NULL;
+
+/** H.323 listener */
+H323ListenerTCP *tcpListener;
+
+MyProcess::MyProcess(): PProcess("The NuFone Network's", "H.323 Channel Driver for Asterisk",
+             MAJOR_VERSION, MINOR_VERSION, BUILD_TYPE, BUILD_NUMBER)
+{
+	Resume();
+}
+
+MyProcess::~MyProcess()
+{
+	cout << " == PWLib proces going down." << endl;
+	delete endPoint;
+	endPoint = NULL;
+}
+
+void MyProcess::Main()
+{
+	cout << "  == Creating H.323 Endpoint" << endl;
+	endPoint = new MyH323EndPoint();
+	PTrace::Initialise(0, NULL, PTrace::Timestamp | PTrace::Thread | PTrace::FileAndLine);
+}
+
+ClearCallThread::ClearCallThread(const char *tc) : PThread(10000, PThread::NoAutoDeleteThread)
+{ 
+	token = tc;
+	Resume(); 
+}
+
+ClearCallThread::~ClearCallThread()
+{
+	if (h323debug)
+		cout <<  " == ClearCall thread going down." << endl;
+	return;
+}
+    
+void ClearCallThread::Main()
+{
+	endPoint->ClearCall(token);
+	return;
+}
+
+
+#define H323_NAME OPAL_G7231_6k3"{sw}"
+
+H323_REGISTER_CAPABILITY(H323_G7231Capability, H323_NAME);
+
+H323_G7231Capability::H323_G7231Capability(BOOL annexA_)
+  : H323AudioCapability(7, 4)
+{
+  annexA = annexA_;
+}
+
+PObject::Comparison H323_G7231Capability::Compare(const PObject & obj) const
+{
+  Comparison result = H323AudioCapability::Compare(obj);
+  if (result != EqualTo)
+    return result;
+
+  PINDEX otherAnnexA = ((const H323_G7231Capability &)obj).annexA;
+  if (annexA < otherAnnexA)
+    return LessThan;
+  if (annexA > otherAnnexA)
+    return GreaterThan;
+  return EqualTo;
+}
+
+PObject * H323_G7231Capability::Clone() const
+{
+  return new H323_G7231Capability(*this);
+}
+
+
+PString H323_G7231Capability::GetFormatName() const
+{
+  return H323_NAME;
+}
+
+
+unsigned H323_G7231Capability::GetSubType() const
+{
+  return H245_AudioCapability::e_g7231;
+}
+
+
+BOOL H323_G7231Capability::OnSendingPDU(H245_AudioCapability & cap,
+                                          unsigned packetSize) const
+{
+  cap.SetTag(H245_AudioCapability::e_g7231);
+
+  H245_AudioCapability_g7231 & g7231 = cap;
+  g7231.m_maxAl_sduAudioFrames = packetSize;
+  g7231.m_silenceSuppression = annexA;
+
+  return TRUE;
+}
+
+
+BOOL H323_G7231Capability::OnReceivedPDU(const H245_AudioCapability & cap,
+                                           unsigned & packetSize)
+{
+  if (cap.GetTag() != H245_AudioCapability::e_g7231)
+    return FALSE;
+
+  const H245_AudioCapability_g7231 & g7231 = cap;
+  packetSize = g7231.m_maxAl_sduAudioFrames;
+  annexA = g7231.m_silenceSuppression;
+
+  return TRUE;
+}
+
+
+H323Codec * H323_G7231Capability::CreateCodec(H323Codec::Direction direction) const
+{
+  return NULL;
+}
+
+/** MyH323EndPoint 
+  * The fullAddress parameter is used directly in the MakeCall method so
+  * the General form for the fullAddress argument is :
+  * [alias@][transport$]host[:port]
+  * default values:	alias = the same value as host.
+  *					transport = ip.
+  *					port = 1720.
+  */
+int MyH323EndPoint::MakeCall(const PString & dest, PString & token, 
+							  			unsigned int *callReference, unsigned int port)
+{
+	PString fullAddress;
+	
+	/* Determine whether we are using a gatekeeper or not. */
+	if (GetGatekeeper() != NULL) {
+		fullAddress = dest;
+		if (h323debug)
+			cout << " -- Making call to " << fullAddress << " using gatekeeper." << endl;
+	} else {
+			fullAddress = dest; /* host */
+			fullAddress += psprintf(":%i", port); /* host:port */
+			if (h323debug)
+				cout << " -- Making call to " << fullAddress << "." << endl;
+		}
+
+	if (!H323EndPoint::MakeCall(fullAddress, token)) {
+		if (h323debug)
+			cout << "Error making call to \"" << fullAddress << '"' << endl;
+		return 1;
+	}
+	
+	MyH323Connection * connection = (MyH323Connection *)FindConnectionWithLock(token);
+
+	if (connection != NULL) {
+		*callReference = connection->GetCallReference();
+		connection->Unlock();
+	}
+	
+	if (h323debug) {
+		cout << "	-- " << GetLocalUserName() << " is calling host " << fullAddress << endl;
+		cout << "	-- " << "Call token is " << (const char *)token << endl;
+		cout << "	-- Call reference is " << *callReference << endl;
+	}
+	return 0;
+}
+
+void MyH323EndPoint::SetEndpointTypeInfo( H225_EndpointType & info ) const
+{
+  H323EndPoint::SetEndpointTypeInfo(info);
+  info.m_gateway.IncludeOptionalField(H225_GatewayInfo::e_protocol);
+  info.m_gateway.m_protocol.SetSize(1);
+  H225_SupportedProtocols &protocol=info.m_gateway.m_protocol[0];
+  protocol.SetTag(H225_SupportedProtocols::e_voice);
+  PINDEX as=SupportedPrefixes.GetSize();
+  ((H225_VoiceCaps &)protocol).m_supportedPrefixes.SetSize(as);
+  for (PINDEX p=0; p<as; p++) {
+    H323SetAliasAddress(SupportedPrefixes[p], ((H225_VoiceCaps &)protocol).m_supportedPrefixes[p].m_prefix);
+  }
+}
+
+void MyH323EndPoint::SetGateway(void)
+{
+	terminalType = e_GatewayOnly;
+}
+
+H323Capabilities MyH323EndPoint::GetCapabilities(void)
+{
+	return capabilities;
+}
+
+BOOL MyH323EndPoint::ClearCall(const PString & token)
+{
+	if (h323debug)
+		cout << "	-- ClearCall: Request to clear call with token " << token << endl;
+	return H323EndPoint::ClearCall(token);
+}
+
+void MyH323EndPoint::SendUserTone(const PString &token, char tone)
+{
+	H323Connection *connection = NULL;
+		
+	connection = FindConnectionWithLock(token);
+	if (connection != NULL) {
+		connection->SendUserInputTone(tone, 500);
+		connection->Unlock();
+	}
+}
+
+void MyH323EndPoint::OnClosedLogicalChannel(H323Connection & connection, const H323Channel & channel)
+{
+	channelsOpen--;
+	if (h323debug)
+		cout << "		channelsOpen = " << channelsOpen << endl;
+	H323EndPoint::OnClosedLogicalChannel(connection, channel);
+}
+
+void MyH323EndPoint::OnConnectionEstablished(H323Connection & connection, const PString & estCallToken)
+{
+	if (h323debug)
+		cout << "	-- Connection Established with \"" << connection.GetRemotePartyName() << "\"" << endl;
+	on_connection_established(connection.GetCallReference());
+}
+
+/** OnConnectionCleared callback function is called upon the dropping of an established
+  * H323 connection. 
+  */
+void MyH323EndPoint::OnConnectionCleared(H323Connection & connection, const PString & clearedCallToken)
+{
+	PString remoteName = connection.GetRemotePartyName();
+	
+	call_details_t cd;
+
+	cd.call_reference = connection.GetCallReference();
+	cd.call_token = (const char *)connection.GetCallToken();
+	cd.call_source_aliases = (const char *)connection.GetRemotePartyName();
+	
+	/* Convert complex strings */
+	char *s;
+    if ((s = strchr(cd.call_source_aliases, ' ')) != NULL)
+		*s = '\0';
+
+	/* Invoke the PBX application registered callback */
+	on_connection_cleared(cd);
+
+	switch (connection.GetCallEndReason()) {
+		case H323Connection::EndedByCallForwarded :
+			break;
+		case H323Connection::EndedByRemoteUser :
+			if (h323debug)
+				cout << " -- " << remoteName << " has cleared the call" << endl;
+			break;
+		case H323Connection::EndedByCallerAbort :
+			if (h323debug)
+				cout << " -- " << remoteName << " has stopped calling" << endl;
+			break;
+		case H323Connection::EndedByRefusal :
+			if (h323debug)
+				cout << " -- " << remoteName << " did not accept your call" << endl;
+			break;
+		case H323Connection::EndedByRemoteBusy :
+			if (h323debug)
+			cout << " -- " << remoteName << " was busy" << endl;
+			break;
+		case H323Connection::EndedByRemoteCongestion :
+			if (h323debug)
+				cout << " -- Congested link to " << remoteName << endl;
+			break;
+		case H323Connection::EndedByNoAnswer :
+			if (h323debug)
+				cout << " -- " << remoteName << " did not answer your call" << endl;
+			break;
+		case H323Connection::EndedByTransportFail :
+			if (h323debug)
+				cout << " -- Call with " << remoteName << " ended abnormally" << endl;
+			break;
+		case H323Connection::EndedByCapabilityExchange :
+			if (h323debug)
+				cout << " -- Could not find common codec with " << remoteName << endl;
+			break;
+		case H323Connection::EndedByNoAccept :
+			if (h323debug)
+				cout << " -- Did not accept incoming call from " << remoteName << endl;
+			break;
+		case H323Connection::EndedByAnswerDenied :
+			if (h323debug)
+				cout << " -- Refused incoming call from " << remoteName << endl;
+			break;
+		case H323Connection::EndedByNoUser :
+			if (h323debug)
+				cout << " -- Gatekeeper could not find user " << remoteName << endl;
+			break;
+		case H323Connection::EndedByNoBandwidth :
+			if (h323debug)
+				cout << " -- Call to " << remoteName << " aborted, insufficient bandwidth." << endl;
+			break;
+		case H323Connection::EndedByUnreachable :
+			if (h323debug)
+				cout << " -- " << remoteName << " could not be reached." << endl;
+			break;
+		case H323Connection::EndedByHostOffline :
+			if (h323debug)
+				cout << " -- " << remoteName << " is not online." << endl;
+			break;
+		case H323Connection::EndedByNoEndPoint :
+			if (h323debug)
+				cout << " -- No phone running for " << remoteName << endl;
+			break;
+		case H323Connection::EndedByConnectFail :
+			if (h323debug)
+				cout << " -- Transport error calling " << remoteName << endl;
+			break;
+		default :
+			if (h323debug)
+				cout << " -- Call with " << remoteName << " completed" << endl;
+	}
+	if(connection.IsEstablished()) 
+		if (h323debug)
+			cout << "	 -- Call duration " << setprecision(0) << setw(5) << (PTime() - connection.GetConnectionStartTime()) << endl;
+}
+
+
+H323Connection * MyH323EndPoint::CreateConnection(unsigned callReference, void *outbound)
+{
+	unsigned options = 0;
+
+	if (noFastStart)
+		options |= H323Connection::FastStartOptionDisable;
+
+	if (noH245Tunnelling)
+		options |= H323Connection::H245TunnelingOptionDisable;
+
+	return new MyH323Connection(*this, callReference, options, jitter);
+}
+
+
+/* MyH323Connection */    
+MyH323Connection::MyH323Connection(MyH323EndPoint & ep,
+										   unsigned callReference,
+									       unsigned options,
+										   WORD jitter): H323Connection(ep, 
+																		callReference, 
+																		options)
+{
+    remoteIpAddress = 0; 	// IP Address of remote endpoint
+	remotePort		= 0;	// remote endpoint Data port (control is dataPort+1)
+
+	if (h323debug)
+		cout << "	== New H.323 Connection created." << endl;
+	return;
+}
+
+MyH323Connection::~MyH323Connection()
+{
+	if (h323debug)
+		cout << "	== H.323 Connection deleted." << endl;
+	return;
+}
+
+H323Connection::AnswerCallResponse	MyH323Connection::OnAnswerCall(const PString & caller,
+																   const H323SignalPDU & /*setupPDU*/,
+																   H323SignalPDU & /*connectPDU*/)
+{
+	/* The call will be answered later with "AnsweringCall()" function.
+	 */ 
+	return H323Connection::AnswerCallAlertWithMedia;
+}
+
+BOOL  MyH323Connection::OnAlerting(const H323SignalPDU & /*alertingPDU*/, const PString & username)
+{
+	
+	if (h323debug)
+		cout << "	-- Ringing phone for \"" << username << "\"" << endl;
+	return TRUE;
+}
+
+BOOL MyH323Connection::OnReceivedSignalSetup(const H323SignalPDU & setupPDU)
+{
+	
+	if (h323debug)
+		cout << "	-- Received SETUP message..." << endl;
+
+	call_details_t cd;
+	
+	PString sourceE164;
+	PString destE164;
+	PString sourceAliases;	
+	PString destAliases;
+	PString sourceIp;
+		
+	PIPSocket::Address Ip;
+	WORD			   sourcePort;
+
+	sourceAliases = setupPDU.GetSourceAliases();
+	destAliases = setupPDU.GetDestinationAlias();
+			
+	sourceE164 = "";
+	setupPDU.GetSourceE164(sourceE164);
+	destE164 = "";
+	setupPDU.GetDestinationE164(destE164);
+
+	/* Convert complex strings */
+	//  FIXME: deal more than one source alias 
+	char *s; 
+    if ((s = strchr(sourceAliases, ' ')) != NULL)
+                *s = '\0';
+    if ((s = strchr(sourceAliases, '\t')) != NULL)
+                *s = '\0';
+	char *s1;
+    if ((s1 = strchr(destAliases, ' ')) != NULL)
+         *s1 = '\0';
+	if ((s1 = strchr(destAliases, '\t')) != NULL)
+         *s1 = '\0';
+
+	GetSignallingChannel()->GetRemoteAddress().GetIpAndPort(Ip, sourcePort);
+
+	sourceIp = Ip.AsString();
+
+	cd.call_reference		= GetCallReference();
+	cd.call_token			= (const char *)GetCallToken();
+	cd.call_source_aliases  = (const char *)sourceAliases;
+	cd.call_dest_alias		= (const char *)destAliases;
+	cd.call_source_e164		= (const char *)sourceE164;
+	cd.call_dest_e164		= (const char *)destE164;
+	cd.sourceIp				= (const char *)sourceIp;
+	
+	/* Notify Asterisk of the request */
+	int res = on_incoming_call(cd); 
+
+	if (!res) {
+		if (h323debug)
+			cout << "	-- Call Failed" << endl;
+		return FALSE;
+	}
+	
+	return H323Connection::OnReceivedSignalSetup(setupPDU);
+}
+
+BOOL MyH323Connection::OnSendSignalSetup(H323SignalPDU & setupPDU)
+{
+	call_details_t cd;
+	
+	if (h323debug) 
+		cout << "	-- Sending SETUP message" << endl;
+	
+	sourceAliases = setupPDU.GetSourceAliases();
+	destAliases = setupPDU.GetDestinationAlias();
+
+	sourceE164 = "";
+	setupPDU.GetSourceE164(sourceE164);
+	destE164 = "";
+	setupPDU.GetDestinationE164(destE164);
+
+	/* Convert complex strings */
+	//  FIXME: deal more than one source alias 
+	char *s; 
+    if ((s = strchr(sourceAliases, ' ')) != NULL)
+                *s = '\0';
+    if ((s = strchr(sourceAliases, '\t')) != NULL)
+                *s = '\0';
+	char *s1;
+    if ((s1 = strchr(destAliases, ' ')) != NULL)
+         *s1 = '\0';
+	if ((s1 = strchr(destAliases, '\t')) != NULL)
+         *s1 = '\0';
+
+	cd.call_reference		= GetCallReference();
+	cd.call_token			= (const char *)GetCallToken();
+	cd.call_source_aliases  = (const char *)sourceAliases;
+	cd.call_dest_alias		= (const char *)destAliases;
+	cd.call_source_e164		= (const char *)sourceE164;
+	cd.call_dest_e164		= (const char *)destE164;
+
+	int res = on_outgoing_call(cd);	
+		
+	if (!res) {
+		if (h323debug)
+			cout << "	-- Call Failed" << endl;
+		return FALSE;
+	}
+
+	return H323Connection::OnSendSignalSetup(setupPDU);
+}
+
+void MyH323Connection::OnReceivedReleaseComplete(const H323SignalPDU & pdu)
+{
+	if (h323debug)
+		cout <<  "	-- Received RELEASE COMPLETE message..." << endl;
+	return H323Connection::OnReceivedReleaseComplete(pdu);
+
+}
+
+BOOL MyH323Connection::OnClosingLogicalChannel(H323Channel & channel)
+{
+	if (h323debug)
+		cout << "	-- Closing logical channel..." << endl;
+	return H323Connection::OnClosingLogicalChannel(channel);
+}
+
+
+void MyH323Connection::SendUserInputTone(char tone, unsigned duration)
+{
+	if (h323debug)
+		cout << "	-- Sending user input tone (" << tone << ") to remote" << endl;
+
+	on_send_digit(GetCallReference(), tone);
+		
+	H323Connection::SendUserInputTone(tone, duration);
+}
+
+void MyH323Connection::OnUserInputTone(char tone, unsigned duration, unsigned logicalChannel, unsigned rtpTimestamp)
+{
+	if (mode == H323_DTMF_INBAND) {
+		if (h323debug)
+			cout << "	-- Received user input tone (" << tone << ") from remote" << endl;
+		on_send_digit(GetCallReference(), tone);
+	}
+	H323Connection::OnUserInputTone(tone, duration, logicalChannel, rtpTimestamp);
+}
+
+void MyH323Connection::OnUserInputString(const PString &value)
+{
+	if (mode == H323_DTMF_RFC2833) {
+		if (h323debug)
+			cout <<  "	-- Received user input string (" << value << ") from remote." << endl;
+		on_send_digit(GetCallReference(), value[0]);
+	}	
+}
+
+H323Channel * MyH323Connection::CreateRealTimeLogicalChannel(const H323Capability & capability,
+														     H323Channel::Directions dir,
+														     unsigned sessionID,
+														     const H245_H2250LogicalChannelParameters * /*param*/)
+{
+	WORD port; 
+	
+	/* Establish the Local (A side) IP Address */
+	GetControlChannel().GetLocalAddress().GetIpAndPort(externalIpAddress, port);
+	
+	/* Notify Asterisk of the request and get the port */
+	externalPort = on_create_connection(GetCallReference()); 
+
+	if (h323debug) {
+		cout << "	=*= In CreateRealTimeLogicalChannel" << endl;
+		cout << "		-- externalIpAddress: " << externalIpAddress << endl;
+		cout << "		-- externalPort: " << externalPort << endl;
+		cout << "		-- Direction: " << dir << endl;
+	}
+	
+	return new H323_ExternalRTPChannel(*this, capability, dir, sessionID, externalIpAddress, externalPort);
+}
+
+/** This callback function is invoked once upon creation of each
+  * channel for an H323 session 
+  */
+BOOL MyH323Connection::OnStartLogicalChannel(H323Channel & channel)
+{    
+	if (h323debug) {
+		cout << "	 -- Started logical channel: ";	
+		cout << ((channel.GetDirection()==H323Channel::IsTransmitter)?"sending ":((channel.GetDirection()==H323Channel::IsReceiver)?"receiving ":" ")); 
+		cout << (const char *)(channel.GetCapability()).GetFormatName() << endl;
+	}
+	// adjust the count of channels we have open
+	channelsOpen++;
+	if (h323debug)
+		cout <<  "		-- channelsOpen = " << channelsOpen << endl;
+	
+	H323_ExternalRTPChannel & external = (H323_ExternalRTPChannel &)channel;
+    external.GetRemoteAddress(remoteIpAddress, remotePort); 
+
+	if (h323debug) {
+		cout << "		-- remoteIpAddress: " << remoteIpAddress << endl;
+		cout << "		-- remotePort: " << remotePort << endl;
+		cout << "		-- ExternalIpAddress: " << externalIpAddress << endl;
+		cout << "		-- ExternalPort: " << externalPort << endl;
+	}
+	/* Notify Asterisk of remote RTP information */
+	on_start_logical_channel(GetCallReference(), (const char *)remoteIpAddress.AsString(), remotePort);
+
+	return TRUE;	
+}
+
+#if 0
+MyGatekeeperServer::MyGatekeeperServer(MyH323EndPoint & ep)
+  : H323GatekeeperServer(ep),
+    endpoint(ep)
+{
+}
+
+
+BOOL MyGatekeeperServer::Initialise()
+{
+  PINDEX i;
+
+  PWaitAndSignal mutex(reconfigurationMutex);
+  
+  SetGatekeeperIdentifier("TESTIES");
+
+    // Interfaces to listen on
+  H323TransportAddressArray interfaces;
+  interfaces.Append(new H323TransportAddress(0.0.0.0);
+  AddListeners(interfaces);
+
+  // lots more to come
+  
+  return TRUE;
+
+}
+
+#endif
+
+/** IMPLEMENTATION OF C FUNCTIONS */
+
+/**
+ * The extern "C" directive takes care for 
+ * the ANSI-C representation of linkable symbols 
+ */
+extern "C" {
+
+int end_point_exist(void)
+{
+	if (!endPoint) {
+		return 0;
+	}
+	return 1;
+}
+    
+void h323_end_point_create(void)
+{
+	channelsOpen = 0;
+	localProcess = new MyProcess();	
+	localProcess->Main();
+}
+
+void h323_gk_urq(void)
+{
+	if (!end_point_exist()) {
+		cout << " ERROR: [h323_gk_urq] No Endpoint, this is bad" << endl;
+		return;
+	}
+	
+	endPoint->RemoveGatekeeper();
+}
+
+void h323_end_process(void)
+{	
+	delete localProcess;
+}
+
+void h323_debug(int flag, unsigned level)
+{
+	if (flag) 
+		PTrace:: SetLevel(level); 
+	else 
+		PTrace:: SetLevel(0); 
+}
+	
+/** Installs the callback functions on behalf of the PBX application  */
+void h323_callback_register(setup_incoming_cb  ifunc, 
+							setup_outbound_cb  sfunc,
+							on_connection_cb   confunc,
+							start_logchan_cb   lfunc,
+							clear_con_cb	   clfunc,
+							con_established_cb efunc,
+							send_digit_cb	   dfunc)
+{
+	on_incoming_call = ifunc;
+	on_outgoing_call = sfunc;
+	on_create_connection = confunc;
+	on_start_logical_channel = lfunc;
+	on_connection_cleared = clfunc;
+	on_connection_established = efunc;
+	on_send_digit = dfunc;
+}
+
+/**
+ * Add capability to the capability table of the end point. 
+ */
+int h323_set_capability(int cap, int dtmfMode)
+{
+	int g711Frames = 30;
+    int gsmFrames  = 4;
+
+	
+	if (!end_point_exist()) {
+		cout << " ERROR: [h323_set_capablity] No Endpoint, this is bad" << endl;
+		return 1;
+	}
+
+	mode = dtmfMode;
+	if (dtmfMode == H323_DTMF_INBAND)
+	    endPoint->SetSendUserInputMode(H323Connection::SendUserInputAsTone);
+	else
+		endPoint->SetSendUserInputMode(H323Connection::SendUserInputAsInlineRFC2833);
+	 
+
+	/* Hardcode this for now (Someone tell me if T.38 works now 
+	   or provide me with some debug so we can make this work */
+
+//	endPoint->SetCapability(0, 0, new H323_T38Capability(H323_T38Capability::e_UDP));
+	
+	if (cap & AST_FORMAT_SPEEX) {
+		/* Not real sure if Asterisk acutally supports all
+		   of the various different bit rates so add them 
+		   all and figure it out later*/
+
+		endPoint->SetCapability(0, 0, new SpeexNarrow2AudioCapability());
+		endPoint->SetCapability(0, 0, new SpeexNarrow3AudioCapability());
+		endPoint->SetCapability(0, 0, new SpeexNarrow4AudioCapability());
+		endPoint->SetCapability(0, 0, new SpeexNarrow5AudioCapability());
+		endPoint->SetCapability(0, 0, new SpeexNarrow6AudioCapability());
+	}
+
+	if (cap & AST_FORMAT_G723_1) {
+		H323_G7231Capability *g7231Cap;
+		endPoint->SetCapability(0, 0, g7231Cap = new H323_G7231Capability);
+	} 
+
+	if (cap & AST_FORMAT_GSM) {
+		H323_GSM0610Capability *gsmCap;
+	    endPoint->SetCapability(0, 0, gsmCap = new H323_GSM0610Capability);
+	    gsmCap->SetTxFramesInPacket(gsmFrames);
+	}
+
+	if (cap & AST_FORMAT_G729A) {
+		H323_G729ACapability *g729aCap;
+		endPoint->SetCapability(0, 0, g729aCap = new H323_G729ACapability);
+	} 
+
+	if (cap & AST_FORMAT_ULAW) {
+
+		H323_G711Capability *g711uCap;
+	    endPoint->SetCapability(0, 0, g711uCap = new H323_G711Capability(H323_G711Capability::muLaw));
+		g711uCap->SetTxFramesInPacket(g711Frames);
+	} 
+
+	if (cap & AST_FORMAT_ALAW) {
+		H323_G711Capability *g711aCap;
+		endPoint->SetCapability(0, 0, g711aCap = new H323_G711Capability(H323_G711Capability::ALaw));
+		g711aCap->SetTxFramesInPacket(g711Frames);
+	} 
+
+	return 0;
+}
+
+/** Start the H.323 listener */
+int h323_start_listener(int listenPort, struct sockaddr_in bindaddr, int _jitter)
+{
+	
+	if (!end_point_exist()) {
+		cout << "ERROR: [h323_start_listener] No Endpoint, this is bad!" << endl;
+		return 1;
+	}
+	
+	jitter = _jitter;
+
+	PIPSocket::Address interfaceAddress(bindaddr.sin_addr);
+	
+	tcpListener = new H323ListenerTCP(*endPoint, interfaceAddress, (WORD)listenPort);
+
+	if (!endPoint->StartListener(tcpListener)) {
+		cout << "ERROR: Could not open H.323 listener port on " << ((H323ListenerTCP *) tcpListener)->GetListenerPort() << endl;
+		return 1;
+		
+	}
+		
+	cout << "  == H.323 listener started on " << ((H323ListenerTCP *) tcpListener)->GetTransportAddress() << endl;
+	
+	return 0;
+};
+ 
+   
+int h323_set_alias(struct oh323_alias *alias)
+{
+	char *p;
+	char *num;
+	PString h323id(alias->name);
+	PString e164(alias->e164);
+	
+	if (!end_point_exist()) {
+		cout << "ERROR: [h323_set_alias] No Endpoint, this is bad!" << endl;
+		return 1;
+	}
+
+	cout << "  == Adding alias \"" << h323id << "\" to endpoint" << endl;
+	endPoint->AddAliasName(h323id);	
+
+	endPoint->RemoveAliasName(localProcess->GetUserName());
+
+	if (!e164.IsEmpty()) {
+		cout << "  == Adding E.164 \"" << e164 << "\" to endpoint" << endl;
+		endPoint->AddAliasName(e164);
+	}
+	if (strlen(alias->prefix)) {
+		p = alias->prefix;
+		num = strsep(&p, ",");
+		while(num) {
+	        cout << "  == Adding Prefix \"" << num << "\" to endpoint" << endl;
+			endPoint->SupportedPrefixes += PString(num);
+			endPoint->SetGateway();
+	        num = strsep(&p, ",");		
+		}
+	}
+
+	return 0;
+}
+
+/** Establish Gatekeeper communiations, if so configured, 
+  *	register aliases for the H.323 endpoint to respond to.
+  */
+int h323_set_gk(int gatekeeper_discover, char *gatekeeper, char *secret)
+{
+	PString gkName = PString(gatekeeper);
+	PString pass   = PString(secret);
+
+	cout << "begining" << endl;
+
+	if (!end_point_exist()) {
+		cout << "ERROR: [h323_set_gk] No Endpoint, this is bad!" << endl;
+		return 1;
+	}
+
+	if (!gatekeeper) {
+		cout << "Error: Gatekeeper cannot be NULL" << endl;
+		return 1;
+	}
+
+	if (strlen(secret)) {
+		endPoint->SetGatekeeperPassword(pass);
+	}
+		
+
+	if (gatekeeper_discover) {
+		/* discover the gk using multicast */
+		if (endPoint->DiscoverGatekeeper(new H323TransportUDP(*endPoint))) {
+			cout << "  == Using " << (endPoint->GetGatekeeper())->GetName() << " as our Gatekeeper." << endl;
+		} else {
+			cout << "  *** Could not find a gatekeeper." << endl;
+			return 1;
+		}	
+	} else {
+		/* Gatekeeper operations */
+		H323TransportUDP *rasChannel = new H323TransportUDP(*endPoint);
+	
+		if (!rasChannel) {
+			cout << "	*** No RAS Channel, this is bad" << endl;
+			return 1;
+		}
+		if (endPoint->SetGatekeeper(gkName, rasChannel)) {
+			cout << "  == Using " << (endPoint->GetGatekeeper())->GetName() << " as our Gatekeeper." << endl;
+		} else {
+			cout << "  *** Error registering with gatekeeper \"" << gkName << "\". " << endl;
+			return 1;
+		}
+	}
+	
+	cout << "end" << endl;
+	return 0;
+}
+
+/** Send a DTMF tone over the H323Connection with the
+  * specified token.
+  */
+void h323_send_tone(const char *call_token, char tone)
+{
+	if (!end_point_exist()) {
+		cout << "ERROR: [h323_send_tone] No Endpoint, this is bad!" << endl;
+		return;
+	}
+
+	PString token = PString(call_token);
+	endPoint->SendUserTone(token, tone);
+}
+
+/** Make a call to the remote endpoint.
+  */
+int h323_make_call(char *host, call_details_t *cd, call_options_t call_options)
+{
+	int res;
+	PString	token;
+
+	if (!end_point_exist()) {
+		return 1;
+	}
+	
+	PString dest = PString(host);
+	
+	res = endPoint->MakeCall(dest, token, &cd->call_reference, call_options.port);
+	memcpy((char *)(cd->call_token), (const unsigned char *)token, token.GetLength());
+	
+	return res;
+};
+
+int h323_clear_call(const char *call_token)
+{
+	if (!end_point_exist()) {
+		return 1;
+	}
+
+	ClearCallThread	*clearCallThread = new ClearCallThread(call_token);
+	clearCallThread->WaitForTermination();
+	
+	return 0;
+};
+
+/** This function tells the h.323 stack to either 
+    answer or deny an incoming call  */
+int h323_answering_call(const char *token, int busy) 
+{
+	const PString currentToken(token);
+
+	H323Connection * connection;
+	
+	connection = endPoint->FindConnectionWithLock(currentToken);
+	
+	if (connection == NULL) {
+		cout << "No connection found for " << token << endl;
+		return -1;
+	}
+
+	if (!busy){
+		connection->AnsweringCall(H323Connection::AnswerCallNow);
+		connection->Unlock();
+
+	} else {
+		connection->AnsweringCall(H323Connection::AnswerCallDenied);
+		connection->Unlock();
+	};
+
+	return 0;
+}
+
+
+int h323_show_codec(int fd, int argc, char *argv[])
+{
+	cout <<  "Allowed Codecs:\n\t" << setprecision(2) << endPoint->GetCapabilities() << endl;
+
+	return 0;
+}
+
+
+/* alas, this doesn't work :(   */
+void h323_native_bridge(const char *token, char *them, char *us)
+{
+	H323Channel *channel;
+	H323Connection *connection = endPoint->FindConnectionWithLock(token);
+    
+	if (!connection){
+		cout << "ERROR: No connection active.\n";
+		return;
+	}
+
+    connection->Unlock();
+	channel = connection->FindChannel(RTP_Session::DefaultAudioSessionID, TRUE);
+	H323_ExternalRTPChannel *external = (H323_ExternalRTPChannel *)channel;
+	external->SetExternalAddress(them, us);  // data (RTP), control (Asterisk)
+	return;
+
+}
+
+} /* extern "C" */
+
+
+