--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/telephonyserver/etelserverandcore/SETEL/ET_CORE.CPP	Tue Feb 02 01:41:59 2010 +0200
@@ -0,0 +1,1347 @@
+// Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies).
+// All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of "Eclipse Public License v1.0"
+// which accompanies this distribution, and is available
+// at the URL "http://www.eclipse.org/legal/epl-v10.html".
+//
+// Initial Contributors:
+// Nokia Corporation - initial contribution.
+//
+// Contributors:
+//
+// Description:
+//
+
+#include "ET_SSTD.H"
+#include "ETBUFFER.H"
+#include <f32file.h>
+#include "etsvr_slots.h"
+#include "et_phone_util.h"
+//
+//
+// CFaxBase
+//
+//
+EXPORT_C CFaxBase::CFaxBase()
+//
+//	C'Tor
+//
+	{
+	__DECLARE_NAME(_S("CFaxBase"));
+	}
+
+EXPORT_C CFaxBase::~CFaxBase()
+//
+//	D'Tor
+//
+	{}
+
+EXPORT_C CTelObject* CFaxBase::OpenNewObjectByNameL(const TDesC&)
+//
+// Always return NULL not allow CFaxBase Tsy object to create new object
+//
+	{
+	User::Leave(KErrNotSupported);
+	return NULL;
+	}
+
+EXPORT_C CTelObject* CFaxBase::OpenNewObjectL(TDes&)
+//
+// Always return NULL not allow CFaxBase Tsy object to create new object
+//
+	{
+	User::Leave(KErrNotSupported);
+	return NULL;
+	}
+
+EXPORT_C void CFaxBase::OpenPostProcessing(CTelSession*,const TInt)
+//
+// Perform post-processing after object has been added to session's CObjectIx.
+//
+	{}
+
+EXPORT_C void CFaxBase::CloseSubSessionPreProcessing(CTelSession* aSession,const TInt aSubSessionHandle)
+	{
+	CreateDummySession(aSession,aSubSessionHandle);
+	FlushReqs(aSession,aSubSessionHandle);
+	}
+
+EXPORT_C TInt CFaxBase::CancelService(const TInt aIpc,const TTsyReqHandle /*aTsyReqHandle*/)
+//
+// Cancel Service for Fax
+//
+	{
+	__ASSERT_ALWAYS((aIpc==EEtelFaxRead) ||
+					(aIpc==EEtelFaxWrite) ||
+					(aIpc==EEtelFaxWaitForEndOfPage)
+					,Fault(EEtelFaultInvalidIpcForCancel));
+
+	switch (aIpc)
+		{
+	// this is a special case for Fax session - 
+	// count already increment before calling susession
+	// for those reqs below - server do expect Tsy to call ReqCompleted()
+	// so the count should be decrement again !
+	case EEtelFaxRead:
+	case EEtelFaxWrite:
+	case EEtelFaxWaitForEndOfPage:
+		return KErrNone;	
+		// There is no individual cancel associated with these requests
+	default:
+		return KErrGeneral;
+		}
+	}
+
+
+EXPORT_C TInt CFaxBase::Service(const RMessage2& /*aMessage*/,CReqEntry* aReqEntry)
+//
+// The ServiceL functionality for the fax
+//
+	{
+	__ASSERT_ALWAYS(aReqEntry!=NULL,Fault(EEtelFaultCallTsyServiceWithoutReqPackage));
+	aReqEntry->iPlacedRequest=ETrue;
+	TTsyReqHandle tsyReqHandle=aReqEntry->iTsyReqHandle;
+	TDes8* des1 = BufferDes1(aReqEntry->iBuffer,CBuffer::ESlotWrite);
+
+	switch (aReqEntry->iFunction)
+		{
+	case EEtelFaxRead:
+		__ASSERT_ALWAYS(des1!=NULL,Fault(EETelFaultRequestWithoutBuffer));
+		return Read(tsyReqHandle,des1);
+	case EEtelFaxWrite:
+		__ASSERT_ALWAYS(des1!=NULL,Fault(EETelFaultRequestWithoutBuffer));
+		return Write(tsyReqHandle,des1);
+	case EEtelFaxWaitForEndOfPage:
+		return WaitForEndOfPage(tsyReqHandle);
+	case EEtelFaxTerminateFaxSession:
+		return TerminateFaxSession(tsyReqHandle);
+	default:
+		return KErrNotSupported;
+		}
+	}
+
+
+EXPORT_C void CFaxBase::Init()
+	{}
+
+EXPORT_C CTelObject::TReqMode CFaxBase::ReqModeL(const TInt aIpc)
+//
+// Fax Request Inquiry Functions
+//
+    {
+	CTelObject::TReqMode mode=0;
+	switch (aIpc)
+		{
+	case EEtelFaxTerminateFaxSession:
+		mode=KReqModeMultipleCompletionEnabled;	// if two clients call this, only want the first to
+											// be acted upon
+		break;
+	case EEtelFaxRead:
+	case EEtelFaxWrite:
+	case EEtelFaxWaitForEndOfPage:
+		mode=KReqModeFlowControlObeyed;
+		break;
+	default:
+		User::Leave(KErrNotSupported);
+		break;
+		}
+	return mode;
+	}
+
+EXPORT_C TInt CFaxBase::NumberOfSlotsL(const TInt /*aIpc*/)
+	{
+	User::Leave(KErrNotSupported);	// there are no repost immediately functions for fax
+	return KSlotNumbersDefault;
+	}
+
+//
+//
+// CCallBase
+//
+//
+EXPORT_C CCallBase::CCallBase()
+//
+//	C'Tor
+//
+	:iOwnershipStatus(EOwnedUnowned)
+	,iOwnerSession(NULL)
+	,iOwnerSubSessionHandle(0)
+	,iLoanDataPort(EFalse)
+	{
+	__DECLARE_NAME(_S("CCallBase"));
+	}
+
+EXPORT_C CCallBase::~CCallBase()
+//
+//	D'Tor
+//	Attual closing of the owner is done in CSubSessionBase destructor
+//	This is for all object inherit fron CSubSessionBase
+//
+	{
+	LOGTEXT("~CCallBase");
+	}
+
+EXPORT_C TInt CCallBase::CancelService(const TInt aIpc,const TTsyReqHandle aTsyReqHandle)
+//
+// Cancel Service for Call
+//
+	{
+	__ASSERT_ALWAYS((aIpc==EEtelCallNotifyHookChange) ||
+					(aIpc==EEtelCallNotifyStatusChange) ||
+					(aIpc==EEtelCallNotifyDurationChange) ||
+					(aIpc==EEtelCallCapsChangeNotification) ||
+					(aIpc==EEtelCallAcquireOwnership) ||
+					(aIpc==EEtelCallDial) ||
+					(aIpc==EEtelCallAnswer) ||
+					(aIpc==EEtelCallHangUp) ||
+					(aIpc==EEtelCallConnect)||
+					(aIpc==EEtelCallLoanDataPort)
+					,Fault(EEtelFaultInvalidIpcForCancel));
+	switch (aIpc)
+		{
+	case EEtelCallCapsChangeNotification:
+		return NotifyCapsChangeCancel(aTsyReqHandle);
+	case EEtelCallNotifyHookChange:
+		return NotifyHookChangeCancel(aTsyReqHandle);
+	case EEtelCallNotifyStatusChange:
+		return NotifyStatusChangeCancel(aTsyReqHandle);
+	case EEtelCallNotifyDurationChange:
+		return NotifyDurationChangeCancel(aTsyReqHandle);
+	case EEtelCallAcquireOwnership:
+		return AcquireOwnershipCancel(aTsyReqHandle);
+	case EEtelCallDial:
+		return DialCancel(aTsyReqHandle);
+	case EEtelCallConnect:
+		return ConnectCancel(aTsyReqHandle);
+	case EEtelCallAnswer:
+		return AnswerIncomingCallCancel(aTsyReqHandle);
+	case EEtelCallHangUp:
+		return HangUpCancel(aTsyReqHandle);
+	case EEtelCallLoanDataPort:
+		return LoanDataPortCancel(aTsyReqHandle);
+	default:
+		return KErrGeneral; // should never reached here
+		}
+	}
+
+EXPORT_C void CCallBase::Init()
+	{}
+
+EXPORT_C CCallBase::TCallOwnership CCallBase::CheckOwnership(const TTsyReqHandle aTsyReqHandle) const
+//
+// Tsy upcall function - return the call ownership status
+//
+	{
+	CReqEntry* reqEntry=PhoneOwner()->FindByTsyHandle(aTsyReqHandle);
+	__ASSERT_ALWAYS(reqEntry!=NULL,Fault(EEtelFaultNotRecognisedTsyHandle));
+	RCall::TOwnershipStatus owner=CheckOwnershipBySession(reqEntry->iSession,reqEntry->iMessage.Int3());
+
+	if (owner==RCall::EOwnershipUnowned)
+		return EOwnedUnowned;
+
+	if (owner==RCall::EOwnershipOwnedByThisClient)
+		return EOwnedTrue;
+
+	if (owner==RCall::EOwnershipThisIsPriorityClient)
+		return EOwnedPriorityClient; 
+
+	return EOwnedFalse;
+	}
+
+EXPORT_C RCall::TOwnershipStatus CCallBase::CheckOwnershipBySession(CTelSession* aSession,const TInt /*aSubSessionHandle*/) const
+//
+// Return true if the owner
+//
+	{
+	if (iOwnershipStatus==EOwnedUnowned)
+		return RCall::EOwnershipUnowned;
+
+	if(iOwnershipStatus==EOwnedTrue && iOwnerSession==aSession /*&& iOwnerSubSessionHandle==aSubSessionHandle*/)	// ownership is session based!
+		return RCall::EOwnershipOwnedByThisClient;
+
+// Ann changed
+	if (iOwnershipStatus==EOwnedTrue && aSession->TelServer()->IsPriorityClient(aSession))
+		return RCall::EOwnershipThisIsPriorityClient;
+// end
+
+	return RCall::EOwnershipOwnedByAnotherClient;
+	}
+
+EXPORT_C TInt CCallBase::SetUnowned()
+//
+// Return Owner ship status
+//
+	{
+	iOwnershipStatus=EOwnedUnowned;
+	iOwnerSession=NULL; // set to invalid value
+	iOwnerSubSessionHandle=0; 
+
+	return KErrNone;
+	}
+
+EXPORT_C TInt CCallBase::SetOwnership(const TTsyReqHandle aTsyReqHandle)
+//
+// If owner ship if not own
+//
+	{
+	CReqEntry* reqEntry=PhoneOwner()->FindByTsyHandle(aTsyReqHandle);
+	__ASSERT_ALWAYS(reqEntry!=NULL,Fault(EEtelFaultNotRecognisedTsyHandle));
+
+	iOwnershipStatus=EOwnedTrue;
+	iOwnerSession=reqEntry->iSession;
+	iOwnerSubSessionHandle=reqEntry->iMessage.Int3();
+	return KErrNone;
+	}
+
+EXPORT_C TBool CCallBase::CheckPriorityClient(const TTsyReqHandle aTsyReqHandle) const
+	{
+	CReqEntry* reqEntry=PhoneOwner()->FindByTsyHandle(aTsyReqHandle);
+	__ASSERT_ALWAYS(reqEntry!=NULL,Fault(EEtelFaultNotRecognisedTsyHandle));
+
+	return reqEntry->iSession->TelServer()->IsPriorityClient(reqEntry->iSession);
+	}		
+
+EXPORT_C CCallBase* CCallBase::ResolveSubSessionHandle(const TTsyReqHandle aTsyReqHandle,
+													   const TInt aSubSessionHandle)
+//
+//	expects the subsession handle of a call, which must have been opened by the same client session
+//	which opened this call and called the current request (identified by aTsyReqHandle)
+//
+	{
+	CReqEntry* reqEntry=PhoneOwner()->FindByTsyHandle(aTsyReqHandle);
+	__ASSERT_ALWAYS(reqEntry!=NULL,Fault(EEtelFaultNotRecognisedTsyHandle));
+	return REINTERPRET_CAST(CCallBase*,reqEntry->iSession->CObjectFromHandle(aSubSessionHandle));
+	}
+
+EXPORT_C void CCallBase::OpenPostProcessing(CTelSession* ,const TInt)
+//
+// Perform post-processing after object has been added to session's CObjectIx.
+//
+	{}
+
+EXPORT_C void CCallBase::CloseSubSessionPreProcessing(CTelSession* aSession,const TInt aSubSessionHandle)
+//
+// Perform close post-processing before object being close
+// if is owner then set to EUnOwned
+//
+	{
+	LOGTEXT("CCallBase::CloseSubSessionPreProcessing() - about to create dummy session");
+	CreateDummySession(aSession,aSubSessionHandle);
+	RCall::TOwnershipStatus owner=CheckOwnershipBySession(aSession,aSubSessionHandle);
+	if (owner==RCall::EOwnershipOwnedByThisClient)
+		{
+		CreateDummySession(aSession,aSubSessionHandle,ETrue);
+		if (iLoanDataPort)  // data port being on loan by this owner
+			RecoverDataPortAndRelinquishOwnership(); // inform tsy about this
+		else
+			RelinquishOwnership();
+		}
+	FlushReqs(aSession,aSubSessionHandle);	
+	}
+
+EXPORT_C void CCallBase::RelinquishOwnershipCompleted(const TInt aError)
+//
+// Server called Tsy with RelinquishOwnership()
+// TSY should do a Up call with this function
+//
+	{
+	__ASSERT_ALWAYS(aError==KErrNone,Fault(EEtelFaultCanNotRelinquishOwnership));
+	CheckAndDestroyDummySubSession();
+	}
+
+EXPORT_C void CCallBase::RecoverDataPortAndRelinquishOwnershipCompleted(const TInt aError)
+//
+// Server called Tsy with RecoverDataPortAndRelinquishOwnership()
+// TSY should do a Up call with this function
+//
+	{
+	__ASSERT_ALWAYS(aError==KErrNone,Fault(EEtelFaultCanNotRelinquishOwnership));
+	iLoanDataPort=EFalse;
+	RelinquishOwnershipCompleted(aError);
+	}
+
+EXPORT_C TInt CCallBase::Service(const RMessage2& aMessage,CReqEntry* aReqEntry)
+//
+// The ServiceL functionality for the call
+//
+	{
+	__ASSERT_ALWAYS(aReqEntry!=NULL,Fault(EEtelFaultCallTsyServiceWithoutReqPackage));
+	aReqEntry->iPlacedRequest=ETrue;
+	TTsyReqHandle tsyReqHandle=aReqEntry->iTsyReqHandle;
+	TDes8* des1 = BufferDes1(aReqEntry->iBuffer,CBuffer::ESlotWrite);
+	TUint8* ptr1=Ptr1(des1);
+	switch (aReqEntry->iFunction)
+		{
+
+	// Asynchronous + Cancel
+	case EEtelCallCapsChangeNotification:
+		__ASSERT_ALWAYS(des1!=NULL,Fault(EETelFaultRequestWithoutBuffer));
+		return NotifyCapsChange(tsyReqHandle,REINTERPRET_CAST(RCall::TCaps*,ptr1));
+	case EEtelCallCapsChangeNotificationCancel:
+		return NotifyCapsChangeCancel(tsyReqHandle);
+	case EEtelCallNotifyHookChange:
+		__ASSERT_ALWAYS(des1!=NULL,Fault(EETelFaultRequestWithoutBuffer));
+		return NotifyHookChange(tsyReqHandle,REINTERPRET_CAST(RCall::THookStatus*,ptr1));
+	case EEtelCallNotifyHookChangeCancel:
+		return NotifyHookChangeCancel(tsyReqHandle);
+
+	case EEtelCallNotifyStatusChange:
+		__ASSERT_ALWAYS(des1!=NULL,Fault(EETelFaultRequestWithoutBuffer));
+		return NotifyStatusChange(tsyReqHandle,REINTERPRET_CAST(RCall::TStatus*,ptr1));
+	case EEtelCallNotifyStatusChangeCancel:
+		return  NotifyStatusChangeCancel(tsyReqHandle);
+	case EEtelCallNotifyDurationChange:
+		return NotifyDurationChange(tsyReqHandle,REINTERPRET_CAST(TTimeIntervalSeconds*,ptr1));
+	case EEtelCallNotifyDurationChangeCancel:
+		return NotifyDurationChangeCancel(tsyReqHandle);
+	case EEtelCallDial:
+		{
+		__ASSERT_ALWAYS(des1!=NULL,Fault(EETelFaultRequestWithoutBuffer));
+		TDes* des2 = NULL;
+		des2 = BufferDes2u(aReqEntry->iBuffer,CBuffer::ESlotWrite);
+		__ASSERT_ALWAYS(des2!=NULL,Fault(EEtelFaultDes2DoesNotExist));
+		return Dial(tsyReqHandle,des1,des2);
+		}
+	case EEtelCallDialCancel:
+		return DialCancel(tsyReqHandle);
+
+	case EEtelCallConnect:
+		return Connect(tsyReqHandle,des1);
+	case EEtelCallConnectCancel:
+		return ConnectCancel(tsyReqHandle);
+
+	case EEtelCallAnswer:
+		return AnswerIncomingCall(tsyReqHandle,des1);
+	case EEtelCallAnswerCancel:
+		return AnswerIncomingCallCancel(tsyReqHandle);
+
+	case EEtelCallHangUp:
+		return HangUp(tsyReqHandle);
+	case EEtelCallHangUpCancel:
+		return HangUpCancel(tsyReqHandle);
+
+	case EEtelCallAcquireOwnership:
+		{
+		if (RCall::EOwnershipOwnedByThisClient==
+			CheckOwnershipBySession(aReqEntry->iSession,aMessage.Int3()))
+			return KErrEtelAlreadyCallOwner;
+		else
+			return AcquireOwnership(tsyReqHandle);
+		}
+	case EEtelCallAcquireOwnershipCancel:
+		return AcquireOwnershipCancel(tsyReqHandle);
+
+	// Synchronous
+	case EEtelCallGetInfo:
+		__ASSERT_ALWAYS(des1!=NULL,Fault(EETelFaultRequestWithoutBuffer));
+		return GetInfo(tsyReqHandle,REINTERPRET_CAST(RCall::TCallInfo*,ptr1));
+	case EEtelCallGetStatus:
+		__ASSERT_ALWAYS(des1!=NULL,Fault(EETelFaultRequestWithoutBuffer));
+		return GetStatus(tsyReqHandle,REINTERPRET_CAST(RCall::TStatus*,ptr1));
+	case EEtelCallGetCaps:
+		__ASSERT_ALWAYS(des1!=NULL,Fault(EETelFaultRequestWithoutBuffer));
+		return GetCaps(tsyReqHandle,REINTERPRET_CAST(RCall::TCaps*,ptr1));
+	case EEtelCallLoanDataPort:
+		{
+		__ASSERT_ALWAYS(des1!=NULL,Fault(EETelFaultRequestWithoutBuffer));
+		TInt ret=LoanDataPort(tsyReqHandle,REINTERPRET_CAST(RCall::TCommPort*,ptr1));
+		if (ret==KErrNone)
+			iLoanDataPort=ETrue;
+		return ret;
+		}
+	case EEtelCallLoanDataPortCancel:
+		return LoanDataPortCancel(tsyReqHandle);
+
+	case EEtelCallRecoverDataPort:
+		{
+		TInt ret=RecoverDataPort(tsyReqHandle);
+		if (ret==KErrNone)
+			iLoanDataPort=EFalse;
+		return ret;
+		}
+
+	case EEtelCallTransferOwnership:
+		return TransferOwnership(tsyReqHandle);
+	case EEtelCallGetBearerServiceInfo:
+		__ASSERT_ALWAYS(des1!=NULL,Fault(EETelFaultRequestWithoutBuffer));
+		return GetBearerServiceInfo(tsyReqHandle,REINTERPRET_CAST(RCall::TBearerService*,ptr1));
+		
+	case EEtelCallGetOwnershipStatus:
+		{
+		__ASSERT_ALWAYS(des1!=NULL,Fault(EETelFaultRequestWithoutBuffer));
+
+		RCall::TOwnershipStatus* owner=REINTERPRET_CAST(RCall::TOwnershipStatus*,ptr1);
+		*owner=CheckOwnershipBySession(aReqEntry->iSession,aMessage.Int3());
+		ReqCompleted(tsyReqHandle,KErrNone);
+		return KErrNone;
+		}
+
+	case EEtelCallGetCallParams:
+		{
+		__ASSERT_ALWAYS(des1!=NULL,Fault(EETelFaultRequestWithoutBuffer));
+		return GetCallParams(tsyReqHandle,des1);
+		}
+	case EEtelCallGetCallDuration:
+		{
+		__ASSERT_ALWAYS(des1!=NULL,Fault(EETelFaultRequestWithoutBuffer));
+		return GetCallDuration(tsyReqHandle,REINTERPRET_CAST(TTimeIntervalSeconds*,ptr1));
+		}
+	case EEtelCallGetFaxSettings:
+		{
+		__ASSERT_ALWAYS(des1!=NULL,Fault(EETelFaultRequestWithoutBuffer));
+		return GetFaxSettings(tsyReqHandle,REINTERPRET_CAST(RCall::TFaxSessionSettings*,ptr1));
+		}
+
+	case EEtelCallSetFaxSettings:
+		{
+		__ASSERT_ALWAYS(des1!=NULL,Fault(EETelFaultRequestWithoutBuffer));
+		return SetFaxSettings(tsyReqHandle,REINTERPRET_CAST(RCall::TFaxSessionSettings*,ptr1));
+		}
+	case EEtelCallReferenceCount:
+ 		{
+ 		__ASSERT_ALWAYS(des1!=NULL,Fault(EETelFaultRequestWithoutBuffer));
+ 
+ 		TInt* count=REINTERPRET_CAST(TInt*,ptr1);
+ 		*count=AccessCount();
+ 		ReqCompleted(tsyReqHandle,KErrNone);
+ 		return KErrNone;
+ 		}
+ 	case EEtelAdoptFaxSharedHeaderFile:
+		{
+		CFaxSharedFileHandles* fshare = NULL;
+		TRAPD(err, fshare = CFaxSharedFileHandles::NewL(aMessage));
+		if(err != KErrNone)
+			{
+			return err;	
+			}
+		//Pass the CFaxSharedFileHandles object to the TSY.  If call is successful then TSY assumes owenership of the object else we delete it.	
+		TInt ret = SetFaxSharedHeaderFile(tsyReqHandle, fshare);
+		if(ret!= KErrNone)
+			{
+			delete fshare;	
+			}			
+		return ret;	
+		}
+	default:
+		return ServiceExtFunc(aMessage,aReqEntry);
+		}
+	}
+
+EXPORT_C RHandleBase* CCallBase::GlobalKernelObjectHandle()
+	{
+	if (iChunk.Handle() == KNullHandle) return NULL;
+	return &iChunk;	
+	}
+
+	
+EXPORT_C RFax::TProgress* CCallBase::CreateFaxProgressChunk()
+//
+//	Even if already created, return pointer to it
+//
+	{
+	if (iChunk.Handle() == KNullHandle)
+ 		{
+			TInt r = iChunk.CreateGlobal(KNullDesC,sizeof (RFax::TProgress), sizeof (RFax::TProgress),EOwnerProcess); 
+			if (r == KErrNone)
+				{
+				RFax::TProgress* progress = new(iChunk.Base()) RFax::TProgress;
+				progress->iLastUpdateTime = 0;
+				progress->iAnswerback.Zero ();
+				progress->iPhase = ENotYetStarted;
+				progress->iSpeed = 9600;
+				progress->iResolution = EFaxNormal;
+				progress->iCompression = EModifiedHuffman;
+				progress->iECM = 0;
+ 				progress->iPage = 0;
+				progress->iLines = 0;
+				return progress;
+				}	
+		if (r != KErrNone)
+			return NULL;
+		
+		}
+	return (RFax::TProgress*)iChunk.Base();	
+ 	}
+
+/**
+Base implementation for virtual API declared in MCallBaseTSY.  This base implementation always returns KErrNotSupported and 
+it is therefore necessary for TSYs who support this API to override this in their CCallBase derived class.
+
+This function passes through a pointer to a heap-based CFaxSharedFileHandles object.  This object is instantiated by Etel but 
+a successful return of this function will pass responsibility for deletion of aFaxSharedFileHandles from Etel server to the TSY.  
+If an error code is returned from this function (e.g. KErrNotSupported) Etel maintains ownership of the aFaxSharedFileHandles and 
+is responsible for its deletion.
+
+TSY overrides of this function must correctly handle the cleanup of the aFaxSharedFileHandles object if they take ownership of it 
+which is implied when returning from this function with KErrNone.
+
+@publishedPartner
+@param aTsyReqHandle Handle to request.
+@param aFaxSharedFileHandles CFaxSharedFileHandles instance to be stored in TSY.
+@released Released v9.0 to allow a fax client to pass a file handle to the Fax server.
+*/
+EXPORT_C TInt CCallBase::SetFaxSharedHeaderFile(const TTsyReqHandle /*aTsyReqHandle*/, CFaxSharedFileHandles* /*aFaxSharedFileHandles*/)
+	{
+	return KErrNotSupported;	
+	}
+
+EXPORT_C void CCallBase::DeleteFaxProgressChunk()
+	{
+	iChunk.Close();
+	}
+
+EXPORT_C CTelObject::TReqMode CCallBase::ReqModeL(const TInt aIpc)
+//
+//	Basic Request Mode for Call
+//
+	{
+	CTelObject::TReqMode mode=0;
+	switch (aIpc)
+		{
+	case EEtelCallNotifyHookChange:
+	case EEtelCallNotifyStatusChange:
+	case EEtelCallNotifyDurationChange:
+	case EEtelCallCapsChangeNotification:
+		mode=KReqModeMultipleCompletionEnabled | KReqModeRePostImmediately;
+		break;
+	case EEtelCallGetInfo:
+	case EEtelCallRecoverDataPort:
+	case EEtelCallGetStatus:
+	case EEtelCallGetCaps:
+	case EEtelCallTransferOwnership:
+	case EEtelCallAcquireOwnership:
+	case EEtelCallGetFaxSettings:
+	case EEtelCallGetCallParams:
+	case EEtelCallGetCallDuration:
+	case EEtelCallAnswer:	// no longer obeys flow control since it may be placed long before
+							// a call arrives
+		break;
+	case EEtelCallGetOwnershipStatus:
+	case EEtelCallGetBearerServiceInfo:	
+	case EEtelCallSetFaxSettings:
+	case EEtelAdoptFaxSharedHeaderFile:
+	case EEtelCallReferenceCount:
+		break;
+	case EEtelCallLoanDataPort:
+	case EEtelCallDial:
+	case EEtelCallConnect:
+	case EEtelCallHangUp:
+	
+		mode=KReqModeFlowControlObeyed;
+		break;
+
+	default:
+		User::Leave(KErrNotSupported);
+		break;
+		}
+	return mode;
+	}
+
+EXPORT_C TInt CCallBase::NumberOfSlotsL(const TInt aIpc)
+	{
+	switch (aIpc)
+		{
+	case EEtelCallNotifyHookChange:
+	case EEtelCallNotifyDurationChange:
+		break;
+	case EEtelCallNotifyStatusChange:
+		return KSlotNumbersCallStatusChange;
+	case EEtelCallCapsChangeNotification:
+		return KSlotNumbersCallCapsChange;
+	default:
+		User::Leave(KErrNotSupported);
+		break;
+		}
+	return KSlotNumbersDefault;
+	}
+
+//
+//
+// CLineBase
+//
+//
+EXPORT_C CLineBase::CLineBase()
+//
+//	C'Tor
+//
+	{
+	__DECLARE_NAME(_S("CLineBase"));
+	}
+
+EXPORT_C CLineBase::~CLineBase()
+//
+//	D'Tor
+//
+	{
+	LOGTEXT("~CLineBase");
+	}
+
+EXPORT_C TInt CLineBase::CancelService(const TInt aIpc,const TTsyReqHandle aTsyReqHandle)
+//
+// Cancel Service for Line
+//
+	{
+	__ASSERT_ALWAYS((	aIpc==EEtelLineNotifyIncomingCall	||
+						aIpc==EEtelLineNotifyHookChange		||
+						aIpc==EEtelLineNotifyStatusChange	||
+						aIpc==EEtelLineNotifyCallAdded		||
+						aIpc==EETelLineCapsChangeNotification)
+						,Fault(EEtelFaultInvalidIpcForCancel));
+	switch (aIpc)
+		{
+	case EEtelLineNotifyIncomingCall:
+		return NotifyIncomingCallCancel(aTsyReqHandle);
+	case EEtelLineNotifyHookChange:
+		return NotifyHookChangeCancel(aTsyReqHandle);
+	case EEtelLineNotifyStatusChange:
+		return NotifyStatusChangeCancel(aTsyReqHandle);
+	case EEtelLineNotifyCallAdded:
+		return NotifyCallAddedCancel(aTsyReqHandle);
+	case EETelLineCapsChangeNotification:
+		return NotifyCapsChangeCancel(aTsyReqHandle);
+	default:
+		return KErrGeneral; // should never reaches here
+		}
+	}
+
+EXPORT_C TInt CLineBase::Service(const RMessage2& aMessage, CReqEntry* aReqEntry)
+//
+// The ServiceL Functionality for the Line
+//
+	{
+	__ASSERT_ALWAYS(aReqEntry!=NULL,Fault(EEtelFaultCallTsyServiceWithoutReqPackage));
+	aReqEntry->iPlacedRequest=ETrue;
+	TTsyReqHandle tsyReqHandle=aReqEntry->iTsyReqHandle;
+	TDes8* des1 = BufferDes1(aReqEntry->iBuffer,CBuffer::ESlotWrite);
+	TUint8* ptr1=Ptr1(des1);
+
+	switch (aReqEntry->iFunction)
+		{
+	case EETelLineCapsChangeNotification:
+		__ASSERT_ALWAYS(des1!=NULL,Fault(EETelFaultRequestWithoutBuffer));
+		return NotifyCapsChange(tsyReqHandle,REINTERPRET_CAST(RLine::TCaps*,ptr1));
+	case EETelLineCapsChangeNotificationCancel:
+		return NotifyCapsChangeCancel(tsyReqHandle);
+	case EEtelLineNotifyIncomingCall:
+		__ASSERT_ALWAYS(des1!=NULL,Fault(EETelFaultRequestWithoutBuffer));
+		return NotifyIncomingCall(tsyReqHandle,REINTERPRET_CAST(TName*,ptr1));
+	case EEtelLineNotifyIncomingCallCancel:
+		return NotifyIncomingCallCancel(tsyReqHandle);
+
+	case EEtelLineNotifyHookChange:
+		__ASSERT_ALWAYS(des1!=NULL,Fault(EETelFaultRequestWithoutBuffer));
+		return NotifyHookChange(tsyReqHandle,REINTERPRET_CAST(RCall::THookStatus*,ptr1));
+	case EEtelLineNotifyHookChangeCancel:
+		return NotifyHookChangeCancel(tsyReqHandle);
+	case EEtelLineNotifyStatusChange:
+		__ASSERT_ALWAYS(des1!=NULL,Fault(EETelFaultRequestWithoutBuffer));
+		return NotifyStatusChange(tsyReqHandle,REINTERPRET_CAST(RCall::TStatus*,ptr1));
+	case EEtelLineNotifyStatusChangeCancel:
+		return NotifyStatusChangeCancel(tsyReqHandle);
+	case EEtelLineNotifyCallAdded:
+		__ASSERT_ALWAYS(des1!=NULL,Fault(EETelFaultRequestWithoutBuffer));
+		return NotifyCallAdded(tsyReqHandle,REINTERPRET_CAST(TName*,ptr1));
+	case EEtelLineNotifyCallAddedCancel:
+		return NotifyCallAddedCancel(tsyReqHandle);
+
+	case EEtelLineGetHookStatus:
+		__ASSERT_ALWAYS(des1!=NULL,Fault(EETelFaultRequestWithoutBuffer));
+		return GetHookStatus(tsyReqHandle,REINTERPRET_CAST(RCall::THookStatus*,ptr1));
+
+	case EEtelLineGetInfo:
+		__ASSERT_ALWAYS(des1!=NULL,Fault(EETelFaultRequestWithoutBuffer));
+		return GetInfo(tsyReqHandle,REINTERPRET_CAST(RLine::TLineInfo*,ptr1));
+	case EEtelLineGetCaps:
+		__ASSERT_ALWAYS(des1!=NULL,Fault(EETelFaultRequestWithoutBuffer));
+		return GetCaps(tsyReqHandle,REINTERPRET_CAST(RLine::TCaps*,ptr1));
+	case EEtelLineGetStatus:
+		__ASSERT_ALWAYS(des1!=NULL,Fault(EETelFaultRequestWithoutBuffer));
+		return GetStatus(tsyReqHandle,REINTERPRET_CAST(RCall::TStatus*,ptr1));
+	case EEtelLineEnumerateCall:
+		__ASSERT_ALWAYS(des1!=NULL,Fault(EETelFaultRequestWithoutBuffer));
+		return EnumerateCall(tsyReqHandle,REINTERPRET_CAST(TInt*,ptr1));
+	case EEtelLineGetCallInfo:
+		__ASSERT_ALWAYS(des1!=NULL,Fault(EETelFaultRequestWithoutBuffer));
+		return GetCallInfo(tsyReqHandle,REINTERPRET_CAST(TCallInfoIndex*,ptr1));
+	default:
+		return ServiceExtFunc(aMessage,aReqEntry);
+		}
+	}
+
+EXPORT_C void CLineBase::Init()
+//
+// not used for Line
+//
+	{}
+
+EXPORT_C void CLineBase::OpenPostProcessing(CTelSession*,const TInt)
+//
+// Perform post-processing after object has been added to session's CObjectIx.
+//
+	{}
+
+EXPORT_C void CLineBase::CloseSubSessionPreProcessing(CTelSession* aSession,const TInt aSubSessionHandle)
+//
+// 
+//
+	{
+	LOGTEXT("CLineBase::CloseSubSessionPreProcessing() - about to create dummy session");
+	CreateDummySession(aSession,aSubSessionHandle);
+	FlushReqs(aSession,aSubSessionHandle);
+	}
+
+EXPORT_C CTelObject::TReqMode CLineBase::ReqModeL(const TInt aIpc)
+//
+// Mode Request Inquiry Functions
+//
+	{
+	CTelObject::TReqMode mode=0;
+	switch (aIpc)
+		{
+	case EEtelLineGetCaps:
+	case EEtelLineGetStatus:
+	case EEtelLineGetHookStatus:
+	case EEtelLineEnumerateCall:
+	case EEtelLineGetCallInfo:
+	case EEtelLineGetInfo:
+	case EEtelLineNotifyIncomingCall:	// 3/12/98 Removed Repost ability.
+		mode=KReqModeMultipleCompletionEnabled;
+		break;
+	case EEtelLineNotifyHookChange:
+	case EEtelLineNotifyStatusChange:
+	case EEtelLineNotifyCallAdded:
+	case EETelLineCapsChangeNotification:
+		mode=KReqModeMultipleCompletionEnabled | KReqModeRePostImmediately;
+		break;
+	default:
+		User::Leave(KErrNotSupported);
+		break;
+		}
+	return mode;
+	}
+
+EXPORT_C TInt CLineBase::NumberOfSlotsL(const TInt aIpc)
+	{
+	switch (aIpc)
+		{
+	case EEtelLineNotifyHookChange:
+	case EETelLineCapsChangeNotification:
+		break;
+	case EEtelLineNotifyStatusChange:
+		return KSlotNumbersLineStatusChange;
+	case EEtelLineNotifyCallAdded:
+		return KSlotNumbersLineCallAddedChange;
+	default:
+		User::Leave(KErrNotSupported);
+		break;
+		}
+	return KSlotNumbersDefault;
+	}
+
+//
+//
+// CPhoneBase
+//
+//
+EXPORT_C CPhoneBase::CPhoneBase()
+//
+// CPhoneBase constructor
+//
+	{
+	__DECLARE_NAME(_S("CPhoneBase"));
+	iReqWaitList.SetOffset(_FOFF(CReqEntry,iLink));
+	iReqActiveList.SetOffset(_FOFF(CReqEntry,iLink));
+	iTsyReqHandleCnt=TSY_HANDLE_INIT_VALUE;
+	}
+
+EXPORT_C CPhoneBase::~CPhoneBase()
+//
+//	CPhone destructor.
+//	Attual closing of the owner is done in CSubSessionBase destructor
+//	This is for all object inherit fron CSubSesissionBase
+//
+	{
+	LOGTEXT("~CPhoneBase");
+	}
+
+//
+// Request List Manipulation Functions
+//
+CReqEntry* CPhoneBase::ActivateNextWaitingReq()
+//
+// Use:		during completion to Activate the next waiting request
+// Action:	Find next Waiting Req, move to active, and return.
+//
+	{
+	if(iReqWaitList.IsEmpty())
+		return NULL;
+
+	CReqEntry* reqEntry=iReqWaitList.First();
+	if(reqEntry==NULL)
+		return NULL;
+	reqEntry->iLink.Deque();
+	iReqActiveList.AddLast(*reqEntry);
+	if (reqEntry->iReqMode & KReqModeMultipleCompletionEnabled)
+		{
+		CReqEntry* otherClientsEntry;
+		TDblQueIter<CReqEntry> iter(iReqWaitList);
+		while(otherClientsEntry=iter++, otherClientsEntry!=NULL)
+			{
+			if(otherClientsEntry->iTsyReqHandle==reqEntry->iTsyReqHandle)
+				{
+				otherClientsEntry->iLink.Deque();
+				iReqActiveList.AddLast(*otherClientsEntry);
+				}
+			}
+		}
+	return reqEntry;
+	}
+
+CReqEntry* CPhoneBase::FindByTsyHandleAndPlacedRequest(const TTsyReqHandle aTsyReqHandle)
+//
+// Use: to search active req list for a single req, remove and then return it. Can be called repeatedly for Notification
+//
+	{
+	CReqEntry* reqEntry;
+	TDblQueIter<CReqEntry> iter(iReqActiveList);
+	while(reqEntry=iter++, reqEntry!=NULL)
+		{
+		if(reqEntry->iTsyReqHandle==aTsyReqHandle && reqEntry->iPlacedRequest)
+			return reqEntry;
+		}
+	return NULL;
+	}
+
+CReqEntry* CPhoneBase::FindByTsyHandle(const TTsyReqHandle aTsyReqHandle)
+//
+// Use: to search active req list for a single req, remove and then return it. Can be called repeatedly for Notification
+//
+	{
+	CReqEntry* reqEntry;
+	TDblQueIter<CReqEntry> iter(iReqActiveList);
+	while(reqEntry=iter++, reqEntry!=NULL)
+		{
+		if(reqEntry->iTsyReqHandle==aTsyReqHandle)
+			return reqEntry;
+		}
+	return NULL;
+	}
+
+void CPhoneBase::UpdateBuffer(CReqEntry* aUpdatedReqEntry,CReqEntry* aReqEntry)
+//
+//	Is passed both the TSY-updated request entry (which may be multi-buffered or not)
+//	and another request entry which is to have the data copied into it (which again may or may
+//	not be multi-buffered) copies the latest data into the target request entry. 
+//
+	{
+	__ASSERT_ALWAYS(aUpdatedReqEntry->iFunction==aReqEntry->iFunction,Fault(EEtelFaultUpdatingBufferOfDifferentIpc));
+	TInt msgType = aReqEntry->iMessage.Int1();
+	if (msgType==EIsaNarrowAndUnicodeDoubleDesTobeRead)
+		{
+		TDes8* targetDes1 = BufferDes1(aReqEntry->iBuffer,CBuffer::ESlotWrite);
+		TDes16* targetDes2 = BufferDes2u(aReqEntry->iBuffer,CBuffer::ESlotWrite);
+		TDes8* sourceDes1 = BufferDes1(aUpdatedReqEntry->iBuffer,CBuffer::ESlotWrite);
+		TDes16* sourceDes2 = BufferDes2u(aUpdatedReqEntry->iBuffer,CBuffer::ESlotWrite);
+		if (sourceDes1!=targetDes1)
+			{
+			targetDes1->Copy(*sourceDes1);
+			if (targetDes2)
+				targetDes2->Copy(*sourceDes2);
+			aReqEntry->iBuffer->IncWrite();
+			}
+		return;
+		}
+	if (aUpdatedReqEntry->iSession->IsUnicodeReq(msgType))
+		{
+		TDes16* targetDes1 = BufferDes1u(aReqEntry->iBuffer,CBuffer::ESlotWrite);
+		TDes16* targetDes2 = BufferDes2u(aReqEntry->iBuffer,CBuffer::ESlotWrite);
+		TDes16* sourceDes1 = BufferDes1u(aUpdatedReqEntry->iBuffer,CBuffer::ESlotWrite);
+		TDes16* sourceDes2 = BufferDes2u(aUpdatedReqEntry->iBuffer,CBuffer::ESlotWrite);
+		if (sourceDes1!=targetDes1)
+			{
+			targetDes1->Copy(*sourceDes1);
+			if (targetDes2)
+				targetDes2->Copy(*sourceDes2);
+			aReqEntry->iBuffer->IncWrite();
+			}
+		}
+	else		// this is narrow
+		{
+		TDes8* targetDes1 = BufferDes1(aReqEntry->iBuffer,CBuffer::ESlotWrite);
+		TDes8* targetDes2 = BufferDes2(aReqEntry->iBuffer,CBuffer::ESlotWrite);
+		TDes8* sourceDes1 = BufferDes1(aUpdatedReqEntry->iBuffer,CBuffer::ESlotWrite);
+		TDes8* sourceDes2 = BufferDes2(aUpdatedReqEntry->iBuffer,CBuffer::ESlotWrite);
+		if (sourceDes1!=targetDes1)
+			{
+			targetDes1->Copy(*sourceDes1);
+			if (targetDes2)
+				targetDes2->Copy(*sourceDes2);
+			aReqEntry->iBuffer->IncWrite();
+			}
+		}
+	}
+
+CReqEntry* CPhoneBase::FindClientInWaiting(CTelSession* aSession,const TInt aSubSessionHandle,const TInt aIpc)
+//
+// Used to search waiting list for a req that's to be cancelled.
+// If non-Null is returned it will have been removed by this function and can be completed by the caller.
+//
+	{
+	CReqEntry* reqEntry;
+	TDblQueIter<CReqEntry> iter(iReqWaitList);
+	while(reqEntry = iter++, reqEntry!=NULL)
+		{
+		if((reqEntry->iSession==aSession)&&(reqEntry->iMessage.Int3()==aSubSessionHandle)&&(reqEntry->iFunction==aIpc))
+			return reqEntry;
+		}
+	return NULL;
+	}
+
+CReqEntry* CPhoneBase::FindClientInActive(CTelSession* aSession,const TInt aSubSessionHandle,const TInt aIpc)
+//
+// Used to search the active req list for a req that's to be cancelled.
+// The function will return any req entry found, by the caller does not know to pass the cancel down until a search has been done just on the aIpc
+//
+	{
+	CReqEntry* reqEntry;
+	TDblQueIter<CReqEntry> iter(iReqActiveList);
+	while(reqEntry = iter++, reqEntry!=NULL)
+		{
+		if((reqEntry->iSession==aSession)&&(reqEntry->iMessage.Int3()==aSubSessionHandle)&&(reqEntry->iFunction==aIpc))
+			return reqEntry;
+		}
+	return NULL;
+	}
+
+CReqEntry* CPhoneBase::FindByIpcAndTelObject(const TInt aIpc, const CTelObject* aTelObject, const TUint aBufSize)
+//
+//	Finds an active request by both IPC and by the TelObject it was placed on
+//
+	{
+	CReqEntry* reqEntry;
+	TDblQueIter<CReqEntry> iter(iReqActiveList);
+	while(reqEntry = iter++, reqEntry!=NULL)
+		{
+		if(reqEntry->iFunction==aIpc && reqEntry->iTelObject==aTelObject
+			&& reqEntry->iBuffer->Size() == aBufSize)	
+			return reqEntry;
+		}
+	return NULL;
+	}
+
+CReqEntry* CPhoneBase::FindByIpcAndTelObjectInWaiting(const TInt aIpc, const CTelObject* aTelObject, const TUint aBufSize)
+//
+//	Finds a waiting request by both IPC and by the TelObject it was placed on
+//
+	{
+	CReqEntry* reqEntry;
+	TDblQueIter<CReqEntry> iter(iReqWaitList);
+	while(reqEntry = iter++, reqEntry!=NULL)
+		{
+		if(reqEntry->iFunction==aIpc && reqEntry->iTelObject==aTelObject
+			&& reqEntry->iBuffer->Size() == aBufSize)	
+			return reqEntry;
+		}
+	return NULL;
+	}				 
+
+void CPhoneBase::AddReqToActive(CReqEntry* aReqEntry)
+//
+//	Add reqEntry to the 'active list'
+//
+	{
+	LOGTEXT2("CPhoneBase::AddReqToActive with TsyHandle of %d", aReqEntry->iTsyReqHandle);
+	iReqActiveList.AddLast(*aReqEntry);
+	}
+
+void CPhoneBase::AddReqToWaiting(CReqEntry* aReqEntry)
+//
+//	Add entry to the 'wait list'
+//
+	{
+	LOGTEXT2("CPhoneBase::AddReqToWaiting with TsyHandle of %d", aReqEntry->iTsyReqHandle);
+	iReqWaitList.AddLast(*aReqEntry);
+	}
+
+TTsyReqHandle CPhoneBase::TsyReqHandle()
+//
+// Return the request handle  if wrap round avoid assigned to TSY_HANDLE_INIT_VALUE
+//
+	{
+	iTsyReqHandleCnt++ ;
+	if (iTsyReqHandleCnt==TSY_HANDLE_INIT_VALUE)
+		iTsyReqHandleCnt=(TSY_HANDLE_INIT_VALUE+1);
+	return iTsyReqHandleCnt;
+	}
+
+CReqEntry* CPhoneBase::NewReqL(const RMessage2& aMessage, CTelSession* aSession,CBuffer* aBuffer,
+							   const CTelObject* aTelObject,TInt aFunction)
+//
+// Create new req entry
+//
+	{
+	return CReqEntry::NewL(TsyReqHandle(),aMessage,aSession,aBuffer,aTelObject,aFunction,aSession->EmergencyClientHeap(aMessage.Int1()));
+	}
+
+CReqEntry* CPhoneBase::FindSameClientEntry(CTelSession* aSession,const TInt aSubSessionHandle,const TInt aIpc)
+//
+// Seaching for duplicate request and panic client is return not NULL
+//
+	{
+	CReqEntry* reqEntry=FindClientInWaiting(aSession,aSubSessionHandle,aIpc);
+
+	if (reqEntry!=NULL)
+		return reqEntry;
+	else // not found in waiting
+		reqEntry=FindClientInActive(aSession,aSubSessionHandle,aIpc);
+	return reqEntry;
+
+	}
+
+EXPORT_C void CPhoneBase::OpenPostProcessing(CTelSession*,const TInt)
+//
+// Perform post-processing after object has been added to session's CObjectIx.
+//
+	{}
+
+EXPORT_C void CPhoneBase::CloseSubSessionPreProcessing(CTelSession* aSession,const TInt aSubSessionHandle)
+//
+//  Find if any active request if so create a dummy session
+//
+	{
+	LOGTEXT("CPhoneBase::CloseSubSessionPreProcessing");
+	CreateDummySession(aSession,aSubSessionHandle);
+	FlushReqs(aSession,aSubSessionHandle);
+	}
+
+EXPORT_C TInt CPhoneBase::Service(const RMessage2& aMessage, CReqEntry* aReqEntry)
+//
+// The ServiceL functionality for the phone
+//
+	{
+	__ASSERT_ALWAYS(aReqEntry!=NULL,Fault(EEtelFaultCallTsyServiceWithoutReqPackage));
+	aReqEntry->iPlacedRequest=ETrue;
+	TTsyReqHandle tsyReqHandle=aReqEntry->iTsyReqHandle;
+	TDes8* des1 = BufferDes1(aReqEntry->iBuffer,CBuffer::ESlotWrite);
+	TUint8* ptr1=Ptr1(des1);
+	switch (aReqEntry->iFunction)
+		{
+	case EETelPhoneCapsChangeNotification:
+		__ASSERT_ALWAYS(des1!=NULL,Fault(EETelFaultRequestWithoutBuffer));
+		return NotifyCapsChange(tsyReqHandle,REINTERPRET_CAST(RPhone::TCaps*,ptr1));
+	case EETelPhoneCapsChangeNotificationCancel:
+		return NotifyCapsChangeCancel(tsyReqHandle);
+	case EEtelPhoneInitialise:
+		return ControlledInitialisation(tsyReqHandle);
+	case EEtelPhoneInitialiseCancel:
+		return ControlledInitialisationCancel(tsyReqHandle);
+	case EEtelPhoneNotifyModemDetected:
+		__ASSERT_ALWAYS(des1!=NULL,Fault(EETelFaultRequestWithoutBuffer));
+		return NotifyModemDetected(tsyReqHandle,REINTERPRET_CAST(RPhone::TModemDetection*,ptr1) );
+	case EEtelPhoneNotifyModemDetectedCancel:
+		return NotifyModemDetectedCancel(tsyReqHandle);
+	case EEtelPhoneGetInfo:
+		__ASSERT_ALWAYS(des1!=NULL,Fault(EETelFaultRequestWithoutBuffer));
+		return GetInfo(tsyReqHandle,REINTERPRET_CAST(RPhone::TPhoneInfo*,ptr1));
+	case EEtelPhoneGetCaps:
+		__ASSERT_ALWAYS(des1!=NULL,Fault(EETelFaultRequestWithoutBuffer));
+		return GetCaps(tsyReqHandle,REINTERPRET_CAST(RPhone::TCaps*,ptr1));
+	case EEtelPhoneGetStatus:
+		__ASSERT_ALWAYS(des1!=NULL,Fault(EETelFaultRequestWithoutBuffer));
+		return GetStatus(tsyReqHandle,REINTERPRET_CAST(RPhone::TStatus*,ptr1));
+	case EEtelPhoneEnumerateLines:
+		__ASSERT_ALWAYS(des1!=NULL,Fault(EETelFaultRequestWithoutBuffer));
+		return EnumerateLines(tsyReqHandle,REINTERPRET_CAST(TInt*,ptr1));
+	case EEtelPhoneGetLineInfo:
+		__ASSERT_ALWAYS(des1!=NULL,Fault(EETelFaultRequestWithoutBuffer));
+		return GetLineInfo(tsyReqHandle,REINTERPRET_CAST(TLineInfoIndex*,ptr1));
+	default:
+		return ServiceExtFunc(aMessage,aReqEntry);
+		}
+	}
+
+EXPORT_C TInt CPhoneBase::CancelService(const TInt aIpc,const TTsyReqHandle aTsyReqHandle)
+//
+// Cancel Outstanding service for the phone
+//
+	{
+	switch (aIpc)
+		{
+	case EEtelPhoneNotifyModemDetected:
+		return NotifyModemDetectedCancel(aTsyReqHandle);
+	case EETelPhoneCapsChangeNotification:
+		return NotifyCapsChangeCancel(aTsyReqHandle);
+	case EEtelPhoneInitialise:
+		return ControlledInitialisationCancel(aTsyReqHandle);
+	default:
+		return KErrGeneral;
+		}
+	}
+
+CReqEntry* CPhoneBase::FindClientReqInWaitList(CTelSession* aSession,const TInt aSubSessionHandle)
+//
+// Find first entry already logged by this client - in wait list
+//
+	{
+	CReqEntry* reqEntry;
+	TDblQueIter<CReqEntry> iter(iReqWaitList);
+	while(reqEntry = iter++, reqEntry!=NULL)
+		{
+		if(aSession==reqEntry->iSession && aSubSessionHandle==reqEntry->iMessage.Int3())
+			return reqEntry;
+		}
+	return NULL;
+	}
+
+CReqEntry* CPhoneBase::FindThisReqByAnotherClient(CTelSession* aSession,const TInt aSubSessionHandle,const TInt aIpc,const TUint aBufSize,const CTelObject* aThisTelObject)
+//
+// Find this IPC in active list, placed by a different client
+//
+	{
+	CReqEntry* reqEntry;
+	TDblQueIter<CReqEntry> iter(iReqActiveList);
+	while(reqEntry=iter++,reqEntry!=NULL)
+		{
+		if((aSession!=reqEntry->iSession || aSubSessionHandle!=reqEntry->iMessage.Int3()) 
+			&& reqEntry->iFunction==aIpc && reqEntry->iTelObject==aThisTelObject
+			&& reqEntry->iBuffer->Size()==aBufSize)
+			{
+			return reqEntry;
+			}
+		}
+	return NULL;
+	}
+
+CReqEntry* CPhoneBase::FindNonCancelledClientReq(CTelSession* aSession,const TInt aSubSessionHandle,const TInt aIpc)
+//
+// Find this IPC in active list, placed by this client but not the one which placed request on TSY
+//
+	{
+	CReqEntry* reqEntry;
+	TDblQueIter<CReqEntry> iter(iReqActiveList);
+	while(reqEntry=iter++,reqEntry!=NULL)
+		{
+		if(aSession==reqEntry->iSession && aSubSessionHandle==reqEntry->iMessage.Int3() && reqEntry->iFunction==aIpc && reqEntry->iCancelFnCalled==EFalse)
+			{
+			return reqEntry;
+			}
+		}
+	return NULL;
+	}
+  
+void CPhoneBase::CheckAndCompleteAllActive(CReqEntry* aUpdatedReqEntry,const TReqMode aReqMode,const TInt aIpc,const TInt aError)
+//
+//	Cycles through active list, checking for any requests with the same IPC value and if 
+//	registered, copying the data from the buffer that the TSY filled in to this buffer. All those
+//	with the same IPC are completed up to the client (if the client is ready).
+//
+	{
+	CReqEntry* reqEntry;
+	TDblQueIter<CReqEntry> iter(iReqActiveList);
+	while(reqEntry = iter++, reqEntry!=NULL)
+		{
+		if(reqEntry->iFunction==aIpc && reqEntry!=aUpdatedReqEntry 
+			&& reqEntry->iTelObject==aUpdatedReqEntry->iTelObject 
+			&& reqEntry->iBuffer->Size()==aUpdatedReqEntry->iBuffer->Size())	
+			{						   
+			UpdateBuffer(aUpdatedReqEntry,reqEntry);
+			TInt error = ResolveError(reqEntry->iSession,aError);		// set error as either low or high byte
+			if (aReqMode & KReqModeRePostImmediately)
+				UpdateAndCompleteIfNecessary(reqEntry,error);
+			else
+				WriteBackAndCompleteReq(reqEntry,error);
+			}
+		}
+	}
+//
+// CPhoneBase performs Flow Control
+//
+TInt CPhoneBase::FlowControl() const
+//
+// Return the value of iFlowControlCnt
+//
+ 	{
+	return iFlowControlCnt;
+	}
+
+void CPhoneBase::FlowControlInc()
+//
+// Increase iFlowControlCnt
+//
+	{
+	LOGTEXT3("Incrementing Flow Control from %d to %d", iFlowControlCnt, iFlowControlCnt+1);
+	iFlowControlCnt++;
+	}
+
+void CPhoneBase::FlowControlDec()
+//
+// Decrease iFlowControlCnt
+//
+	{
+	__ASSERT_ALWAYS((iFlowControlCnt>0),Fault(EEtelFaultNegativeFlowcontrolCount));
+	LOGTEXT3("Decrementing Flow Control from %d to %d", iFlowControlCnt, iFlowControlCnt-1);
+	iFlowControlCnt--;
+	}
+
+EXPORT_C TBool CPhoneBase::CheckEmergencyClient(const TTsyReqHandle aTsyReqHandle) const
+	{
+	CReqEntry* reqEntry=PhoneOwner()->FindByTsyHandle(aTsyReqHandle);
+	__ASSERT_ALWAYS(reqEntry!=NULL,Fault(EEtelFaultNotRecognisedTsyHandle));
+
+	return reqEntry->iSession->TelServer()->IsEmergencyClient(reqEntry->iSession);
+	}
+
+
+EXPORT_C CTelObject::TReqMode CPhoneBase::ReqModeL(const TInt aIpc)
+//
+// Mode Request Inquiry Functions
+//
+	{
+	CTelObject::TReqMode mode=0;
+	switch (aIpc)
+		{
+	case EEtelPhoneInitialise:	//test
+		mode=KReqModeFlowControlObeyed | KReqModeMultipleCompletionEnabled;
+		break;
+	case EEtelPhoneGetCaps:
+	case EEtelPhoneGetStatus:
+	case EEtelPhoneEnumerateLines:
+	case EEtelPhoneGetLineInfo:
+	case EEtelPhoneGetInfo:
+		mode=KReqModeMultipleCompletionEnabled;
+		break;	
+	case EETelPhoneSetEmergencyClient:
+		mode=KReqModeFlowControlObeyed;
+		break;
+	case EEtelPhoneNotifyModemDetected:
+	case EETelPhoneCapsChangeNotification:
+		mode=KReqModeMultipleCompletionEnabled | KReqModeRePostImmediately;
+		break;
+	default:
+		User::Leave(KErrNotSupported);
+		break;
+		}
+	return mode;
+	}
+
+EXPORT_C TInt CPhoneBase::NumberOfSlotsL(const TInt aIpc)
+	{
+	switch (aIpc)
+		{
+	case EEtelPhoneNotifyModemDetected:
+	case EETelPhoneCapsChangeNotification:
+		break;
+	default:
+		User::Leave(KErrNotSupported);
+		break;
+		}
+	return KSlotNumbersDefault;
+	}
+
+TDblQue<CReqEntry>& CPhoneBase::ReqActiveList()
+	{
+	return iReqActiveList;
+	}
+
+