diff -r bc5a64e5bc3c -r 377c906a8701 phoneplugins/csplugin/src/cspdtmfprovider.cpp
--- a/phoneplugins/csplugin/src/cspdtmfprovider.cpp	Tue Jul 06 14:15:47 2010 +0300
+++ b/phoneplugins/csplugin/src/cspdtmfprovider.cpp	Fri Jul 09 15:40:55 2010 +0300
@@ -156,7 +156,7 @@
     {
     if ( iObservers.Find( &aObserver ) == KErrNotFound )
         {
-        iObservers.Append( &aObserver );
+        iObservers.AppendL( &aObserver );
         }
     }