Ключевые слова: 3g, abstract, accessibility, background, black, business, card, cell, celluar, chip, closeup, communication, communications, computer, concepts, connection, dial, discussion, equipment, gold, gsm, ideas, internet, isolated, isolatedbackground, machine, macro, mobile, mobiles, mobility, move, number, objects, on, phone, photo, prepaid, push, security, service, sim, simcard, smart, support, technology, telecommunications, telephone, text, umts, white,