http://www.articleheaven.net en-us editorial@articlealley.com The world's most popular standard for mobile telephone systems is Global System for Mobile Communications, or GSM (originally from Groupe Spécial Mobile). It is used by over 1.5 billion people all around the world, This ubiquity enables subscribers use ... http://www.articleheaven.net/gsm-tecnology-2206650.html 04th May 2011