Terms Glossary G Global System for Mobile Communication (GSM)
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Global System for Mobile Communication (GSM)

This is the most widely used digital cellular network and the basis for mobile communication such as phone calls and the short message service (SMS).
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A digital mobile telephony system that is widely used in Europe and other parts of the world. As of 2014 it has become the default global standard for mobile communications - with over 90% market share, operating in over 219 countries and territories.
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