gsm

GSM - Wikipedia, the free encyclopedia

Global System for Mobile communications ( GSM : originally from Groupe Spécial Mobile ) is the most popular standard for mobile phones in the world.

GSM frequency bands - Wikipedia, the free encyclopedia

GSM frequency bands or frequency ranges are the radio spectrum frequencies designated by the ITU for the operation of the GSM system for mobile phones

GSM World - GSM Technology

Today's GSM Platform. Today's GSM. GSM (Global System for Mobile communications) is the technology that underpins most of the world's mobile phone networks.