Ключевые слова: aged, antique, background, black, board, box, cable, circuit, communication, connect, control, cord, dial, elements, equipment, exchange, hotels, keys, line, manual, network, office, old, oldfashioned, panel, pbx, phone, plug, retro, station, switch, switchboard, switches, system, technology, telecommunication, telephone, used, vintage, wire, wood, wooden,