diff -r 962e6306d9d2 -r 7ef16719d8cb telephonyserverplugins/common_tsy/commontsy/inc/mmsms/cmmsmstsy.h
--- a/telephonyserverplugins/common_tsy/commontsy/inc/mmsms/cmmsmstsy.h	Fri Feb 19 23:59:33 2010 +0200
+++ b/telephonyserverplugins/common_tsy/commontsy/inc/mmsms/cmmsmstsy.h	Fri Mar 12 15:49:38 2010 +0200
@@ -833,6 +833,15 @@
          * @return TBool 
          */
         TBool IsRequestPossibleInOffline( TInt aIpc ) const;
+        
+        /**
+         * Checks if error code is a relay protocol error
+         *          
+         * 
+         * @param aError Cause value received from LTSY
+         * @return TBool
+         */
+        static TBool IsRPError(TInt aError);
 
     private: