Global System for Mobile Communications definition communications
(GSM, originally "Groupe de travail Sp?ciale pour les services Mobiles") One of the major standards
for digital cellular
communications, in use in over 60 countries and serving over one billion subscribers. The GSM standard is currently used in the 900 MHz, 1800 MHz and 1900 MHz bands. GPRS
allows circuit switched
data communications over GSM, and is widely used for World Wide Web
and electronic mail
access from cellular devices.
GSM World (http://gsmworld.com/).