Ключевые слова: 2, background, call, card, cellphone, cellular, chip, communication, computer, concept, connection, connectivity, device, dial, duo, electronic, equipment, golden, gsm, internet, isolated, message, micro, microchip, mobile, mobility, network, networking, object, operator, phone, prepaid, provider, render, service, sim, simcard, smartphone, sms, technology, telecommunication, telephone, two, web, white, wireless,