Answer GSM Global System for Mobile communication GSM GSM GSM GSM GSM/GPRS/EDGE Global System for Mobile communication GSM GSM GSM Global System for Mobile communication GSM GSM (Global System for Mobile communication) Global System for Mobile GSM GSM GSM GSM GSM GSM GSM GSM GSM GSM GSM GSM GSM GSM (Global System for Mobile communication) Global System for Mobile Global System for Mobile communication (GSM) .GSM GSM GSM GSM (Global System for Mobile communication) GSM GSM GSM GSM GSM GSM GSM GSM Answer GSM GSM GSM GSM GSM GSM GSM GSM GSM GSM GSM GSM GSM GSM Global System for Mobile communication GSM GSM Global System Mobile Communications GSM GSM GSM GSM GSM GSM GSM GSM GSM GSM Glossary Definition: GSM GSM GSM GSM GSM GSM GSM (Global System for Mobile communication) GSM GSM GSM GSM GSM GSM GSM GSM GSM GSM global system for mobile communication GSM GSM (Global System for Mobile communication) GSM GSM Global System for Mobile communication GSM GSM GSM GSM