diff -r 000000000000 -r 71ca22bcf22a mmserv/tms/tmscallserver/src/csdownlink.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mmserv/tms/tmscallserver/src/csdownlink.cpp	Tue Feb 02 01:08:46 2010 +0200
@@ -0,0 +1,166 @@
+/*
+ * 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
+ *
+ */
+
+#include <AudioPreference.h>
+#include "csdownlink.h"
+#include "mcspdevsoundobserver.h"
+
+using namespace TMS;
+
+const gint KDefaultVolume = 4;
+const gint KDefaultMaxVolume = 10;
+
+// -----------------------------------------------------------------------------
+// Static constructor
+// -----------------------------------------------------------------------------
+//
+CSDownlink* CSDownlink::NewL(MCSPDevSoundObserver& aObserver)
+    {
+    CSDownlink* self = new (ELeave) CSDownlink(aObserver);
+    CleanupStack::PushL(self);
+    self->ConstructL();
+    CleanupStack::Pop(self);
+    return self;
+    }
+
+// -----------------------------------------------------------------------------
+// Destructor.
+// -----------------------------------------------------------------------------
+//
+CSDownlink::~CSDownlink()
+    {
+    }
+
+// -----------------------------------------------------------------------------
+// Sets volume
+// -----------------------------------------------------------------------------
+//
+void CSDownlink::SetVolume(gint aVolume)
+    {
+    if (iDevSound)
+        {
+        gint maxVolume(iDevSound->MaxVolume());
+        maxVolume = (maxVolume > 0) ? maxVolume : KDefaultMaxVolume;
+        gint scaledVolume = (aVolume * maxVolume) / KDefaultMaxVolume;
+        iDevSound->SetVolume(scaledVolume);
+        }
+    }
+
+// -----------------------------------------------------------------------------
+// Gives volume
+// -----------------------------------------------------------------------------
+//
+gint CSDownlink::Volume()
+    {
+    gint vol = 0;
+    if (iDevSound)
+        {
+        vol = iDevSound->Volume();
+        }
+    return vol;
+    }
+
+// -----------------------------------------------------------------------------
+// Gives max volume
+// -----------------------------------------------------------------------------
+//
+gint CSDownlink::MaxVolume()
+    {
+    gint vol = 0;
+    if (iDevSound)
+        {
+        vol = iDevSound->MaxVolume();
+        }
+    return vol;
+    }
+
+// -----------------------------------------------------------------------------
+// From class MDevSoundObserver
+// Downlink stream has been activated successfully.
+// -----------------------------------------------------------------------------
+//
+void CSDownlink::BufferToBeFilled(CMMFBuffer* /*aBuffer*/)
+    {
+    //CSPLOGSTRING( CSPINT, "CSDownlink:: activated" );
+    // We dont react to devsound messages unless we are activating.
+    if (IsActivationOngoing())
+        {
+        iActive = ETrue;
+        iActivationOngoing = EFalse;
+        iObserver.DownlinkActivatedSuccessfully();
+        }
+    }
+
+// -----------------------------------------------------------------------------
+// From class MDevSoundObserver
+// Downlink stream activation failed
+// -----------------------------------------------------------------------------
+//
+void CSDownlink::PlayError(TInt aError)
+    {
+    //CSPLOGSTRING( CSPINT, "CSDownlink::PlayError" );
+
+    // We dont react to devsound messages unless we are activating.
+    if (IsActivationOngoing())
+        {
+        //CSPLOGSTRING( CSPINT, "CSDownlink::PlayError activation failed" );
+        if (aError == KErrAccessDenied)
+            {
+            iActivationOngoing = EFalse;
+            iObserver.DownlinkActivationFailed();
+            }
+        }
+    }
+
+// -----------------------------------------------------------------------------
+// From class CSPDevsound
+// Tries to activate Downlink stream.
+// -----------------------------------------------------------------------------
+//
+void CSDownlink::DoActivateL()
+    {
+    if (iDevSound)
+        {
+        iDevSound->PlayInitL();
+        }
+    }
+
+// -----------------------------------------------------------------------------
+// Constructor
+// -----------------------------------------------------------------------------
+//
+CSDownlink::CSDownlink(MCSPDevSoundObserver& aObserver) :
+    CSPDevSound(aObserver)
+    {
+    }
+
+// -----------------------------------------------------------------------------
+// Second phase constructor
+// -----------------------------------------------------------------------------
+//
+void CSDownlink::ConstructL()
+    {
+    CSPDevSound::ConstructL(EMMFStatePlaying, KAudioPrefCSCallDownlink,
+            KAudioPriorityCSCallDownlink);
+
+    if (iDevSound)
+        {
+        iDevSound->SetVolume(KDefaultVolume);
+        }
+    }
+
+//  End of File