Ключевые слова: answer, background, black, business, button, call, cityscape, communication, computer, conference, connection, contact, corporate, customer, desk, device, dial, digital, display, global, hand, handset, hold, human, internet, ip, key, keypad, landline, line, man, modern, office, operator, pbx, person, phone, screen, service, speaker, support, table, technology, telecommunication, telephone, up, voice, voip, white, work,