diff -r 04980be5c5fe -r ff8a573c0e2e mmsharing/mmshengine/tsrc/ut_engine/inc/musengstubs.h
--- a/mmsharing/mmshengine/tsrc/ut_engine/inc/musengstubs.h	Fri Mar 12 15:42:21 2010 +0200
+++ b/mmsharing/mmshengine/tsrc/ut_engine/inc/musengstubs.h	Mon Mar 15 12:40:08 2010 +0200
@@ -28,6 +28,7 @@
 #include "musengreceivesessionobserver.h"
 #include "musengsessiondurationtimerobserver.h"
 #include "musengaudioroutingobserver.h"
+#include "musengvolumechangeobserver.h"
 
 #include <e32base.h>
 
@@ -71,7 +72,8 @@
                             public MMusEngLiveSessionObserver,
                             public MMusEngClipSessionObserver,
                             public MMusEngReceiveSessionObserver,
-                            public MMusEngAudioRoutingObserver
+                            public MMusEngAudioRoutingObserver,
+                            public MMusEngVolumeChangeObserver
     {
     
     public:
@@ -145,7 +147,9 @@
         
         TBool AudioRouteChangeAllowed() const;
         
-    
+        // From MMusEngVolumeChangeObserver
+        void VolumeChanged( TInt aVolume, TBool aAudioRouteChanged );
+        
     public: // Helper
     
         /**
@@ -203,6 +207,7 @@
         TBool iSessionTemporarilyNotAvailable;
         HBufC* iIncomingSessionOriginator;
         
+        TInt iVolume;
     };