diff -r 41a7f70b3818 -r 5266b1f337bd phoneengine/loghandling/inc/cpeloghandling.h
--- a/phoneengine/loghandling/inc/cpeloghandling.h	Tue Aug 31 15:14:29 2010 +0300
+++ b/phoneengine/loghandling/inc/cpeloghandling.h	Wed Sep 01 12:30:10 2010 +0100
@@ -254,6 +254,15 @@
         CPELogExtensionWrapper* CreateExtensionWrapperLC( 
             const TUid& aPluginUid ) const;
         
+        /**
+         * Checks if string is valid number for CS call.
+         * @since   S60 v5.1
+         * @param   aString A string to be checked.
+         * @return  ETrue if valid phone number.
+         */
+        TBool IsValidPhoneNumber( 
+            const TDesC& aString ) const;
+        
     private: // data 
         // Reference to MPEPhoneModelInternal, also object owner
         MPEPhoneModelInternal&  iModel;