diff -r 5a06f39ad45b -r 80975da52420 mmserv/tms/tmscallserver/inc/tmsdtmfprovider.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mmserv/tms/tmscallserver/inc/tmsdtmfprovider.h	Mon May 03 12:59:52 2010 +0300
@@ -0,0 +1,181 @@
+/*
+ * Copyright (c) 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: Telephony Multimedia Service
+ *
+ */
+
+#ifndef TMSDTMFPROVIDER_H
+#define TMSDTMFPROVIDER_H
+
+#include <e32base.h>
+#include <etelmm.h>
+#include <rmmcustomapi.h>
+#include "tmsdtmfobserver.h"
+
+namespace TMS {
+
+// FORWARD DECLARATIONS
+class TMSEtelDtmfMonitor;
+class TMSEtelDtmfStopMonitor;
+
+/**
+ * TMSDTMFProvider class
+ * Makes asynchronic request to ETel interface according to given request type.
+ * Provides canceling via CActive::Cancel().
+ */
+class TMSDTMFProvider : public CActive
+    {
+public:
+
+    /**
+     * Two phased constructing of the DTMF provider instance.
+     * @param aPhone mobile phone handle
+     * @param aMmCustom custom API handle for special DTMF event
+     *        monitoring.
+     * @return the DTMF provider instance
+     */
+    static TMSDTMFProvider* NewL();
+
+    /**
+     * C++ default destructor
+     */
+    virtual ~TMSDTMFProvider();
+
+    /**
+     * HandleDTMFEvents.
+     * @param aEvent Event type
+     * @param aError Error code
+     * @param aTone Character
+     */
+    void NotifyDTMFEvent(const TMSDTMFObserver::TCCPDtmfEvent aEvent,
+            const TInt aError, const TChar aTone);
+
+    // from base class MCCPDTMFProvider
+    /**
+     * Cancels asynchronous DTMF string sending.
+     * @return KErrNone if succesfull, otherwise another system wide error code
+     */
+    TInt CancelDtmfStringSending();
+
+    /**
+     * Starts the transmission of a single DTMF tone across a
+     * connected and active call.
+     * @param aTone Tone to be played.
+     * @return KErrNone if succesfull, otherwise another system wide error code
+     */
+    TInt StartDtmfTone(const TChar aTone);
+
+    /**
+     * Stops playing current DTMF tone.
+     * @return KErrNone if succesfull, otherwise another system wide error code
+     */
+    TInt StopDtmfTone();
+
+    /**
+     * Plays DTMF string.
+     * @param aString String to be played.
+     * @return KErrNone if succesfull, otherwise another system wide error code
+     * KErrArgument if the specified string contains illegal DTMF characters
+     */
+    TInt SendDtmfToneString(const TDesC& aString);
+
+    /**
+     * Continue or cancel sending DTMF string which was stopped with 'w'
+     * character in string.
+     * @param aContinue ETrue if sending of the DTMF string should continue,
+     * EFalse if the rest of the DTMF string is to be discarded.
+     * @return KErrNone if succesfull, otherwise another system wide error code
+     */
+    TInt ContinueDtmfStringSending(const TBool aContinue);
+
+    /**
+     * Add an observer for DTMF related events.
+     * Plug-in dependent feature if duplicates or more than one observers
+     * are allowed or not. Currently CCE will set only one observer.
+     * @param aObserver Observer
+     * @leave system error if observer adding fails
+     */
+    void AddObserverL(const TMSDTMFObserver& aObserver);
+
+    /**
+     * Remove an observer.
+     * @param aObserver Observer
+     * @return KErrNone if removed succesfully. KErrNotFound if observer was
+     * not found. Any other system error depending on the error.
+     */
+    TInt RemoveObserver(const TMSDTMFObserver& aObserver);
+
+    // from base class CActive
+protected:
+    /**
+     * From CActive
+     * RunL
+     */
+    void RunL();
+
+    /**
+     * From CActive
+     * Cancels the monitor
+     */
+    void DoCancel();
+
+private:
+    /**
+     * Constructs the requester.
+     *
+     * @param aPhone handle to ETel phone
+     * @param aMmCustom custom API handle
+     */
+    TMSDTMFProvider();
+
+    /**
+     * Constructing the provider in the second phase.
+     */
+    void ConstructL();
+
+private:
+    /**
+     * DTMF event observer.
+     */
+    RPointerArray<TMSDTMFObserver> iObservers;
+
+    /**
+     * ETel phone handle for DTMF functionality.
+     */
+    RMobilePhone iPhone;
+
+    /**
+     * Monitor for DTMF events and changes.
+     * Own.
+     */
+    TMSEtelDtmfMonitor* iMonitor;
+
+    /**
+     * Monitor for DTMF stopping.
+     * Own.
+     */
+    TMSEtelDtmfStopMonitor* iStopMonitor;
+
+    /**
+     * Custom API reference.
+     */
+    RMmCustomAPI iMmCustom;
+
+    RTelServer iServer;
+    TBuf<25> iTsyname;
+    };
+
+} //namespace TMS
+
+#endif //TMSDTMFPROVIDER_H