Ключевые слова: broadcast, broadcasting, business, call, cell, cellular, commercial, communicate, communication, connect, connection, conversation, cyberspace, dangerous, datum, digital, electronic, frequency, future, global, information, listening, media, metallic, mobile, mobile phone, net, network, news, noise, phone, pollution, professional, radio, receive, receiver, repeat, satellite, science, signal, structure, technology, telecom, telecommunication, television, tower, transmission, transmit, wave,