translate English to German: GSM differs significantly from its predecessors in that both signaling and speech channels are Digital call quality , which means that it is considered a second generation ( 2G ) mobile phone system. This fact has also meant that data communication was built into the system from very early on.
Hier wurde GSM 1992 eingeführt, was zur raschen Verbreitung von Mobiltelefon en (umgangssprachlich: Handy ) in den 1990er -Jahren führte.