lame handset-galaxy ace duos

Location/place: India

Name of company/service: SAMSUNG

sir, I am helpless to find that in ACE.(CDMA+GSM) DUOS HANDSET GSM SIM IS NOT COMPATABLE TO INTERNET,NOR MY RETAILOR NOR COMPANY HANSET BOX REVEAL THIS VITAL FACT AS COMPARED TO PREVIOUS VERSION SAMSUNG GALAXY DUOS (GSM+GSM)