What is GSM? The acronym GSM is a mobile communications system and means “Global System for Mobile Communications”. GSM supports data rates of max. 14.4 kbit / s GSM is the successor system of A, B and C networks and is commercially available in Germany since 1992. The Global System for Mobile Communications (formerly Groupe … Continue reading What is GSM, EDGE, GPRS, UMTS 3G, HSDPA, HSUPA, LTE