diff -r 7d48bed6ce0c -r 987c9837762f convergedcallengine/csplugin/src/cspremotealertingtonelistener.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/convergedcallengine/csplugin/src/cspremotealertingtonelistener.cpp	Wed Sep 01 12:15:03 2010 +0100
@@ -0,0 +1,102 @@
+/*
+* Copyright (c) 2008-2008 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:  Listens remote alerting tone status changes
+*
+*/
+
+
+#include "cspremotealertingtonelistener.h"
+#include "mcspremotealertingtoneobserver.h"
+
+// ======== MEMBER FUNCTIONS ========
+
+// ---------------------------------------------------------------------------
+// Default constructor
+// ---------------------------------------------------------------------------
+//
+CSPRemoteAlertingToneListener::CSPRemoteAlertingToneListener(
+    RMmCustomAPI& aCustomAPI,
+    MCSPRemoteAlertingToneObserver& aObserver ) : 
+    CActive( CActive::EPriorityStandard ),
+    iCustomAPI( aCustomAPI ),
+    iObserver( aObserver )
+    {
+    CActiveScheduler::Add( this );
+    }
+
+// ---------------------------------------------------------------------------
+// Static constructor
+// ---------------------------------------------------------------------------
+//
+CSPRemoteAlertingToneListener* CSPRemoteAlertingToneListener::NewL( 
+    RMmCustomAPI& aCustomAPI,
+    MCSPRemoteAlertingToneObserver& aObserver )
+    {
+    CSPRemoteAlertingToneListener* self = 
+        new( ELeave ) CSPRemoteAlertingToneListener( 
+            aCustomAPI, aObserver );
+    return self;
+    }
+
+// ---------------------------------------------------------------------------
+// Destructor
+// ---------------------------------------------------------------------------
+//
+CSPRemoteAlertingToneListener::~CSPRemoteAlertingToneListener()
+    {
+    Cancel();
+    }
+
+// ---------------------------------------------------------------------------
+// Starts listening the remote alerting tone changes, if not already started
+// ---------------------------------------------------------------------------
+//
+void CSPRemoteAlertingToneListener::StartListening()
+    {
+    if ( !IsActive() )
+        {
+        iCustomAPI.NotifyRemoteAlertingToneStatusChange( iStatus, iRATStatus );
+        SetActive();
+        }
+    }
+
+// ---------------------------------------------------------------------------
+// From class CActive.
+// Cancels the oustanding request.
+// ---------------------------------------------------------------------------
+//
+void CSPRemoteAlertingToneListener::DoCancel()
+    {
+    iCustomAPI.CancelAsyncRequest(
+        ECustomNotifyRemoteAlertingToneStatusChangeIPC );
+    }
+
+// ---------------------------------------------------------------------------
+// From class CActive.
+// Starts listening next change and notifies the observer if no errors 
+// in request completion.
+// ---------------------------------------------------------------------------
+//
+void CSPRemoteAlertingToneListener::RunL()
+    {
+    const TInt error( iStatus.Int() );
+    if ( error != KErrNotSupported )
+        {
+        StartListening();
+        }
+    if ( error == KErrNone )
+        {
+        iObserver.RemoteAlertingToneStatusChanged( iRATStatus );
+        }
+    }