Ключевые слова: assistance, banner, blank, blue, cable, call, calling, center, colorful, communicate, communication, concept, conceptual, conversation, copy, crisis, desk, dial, dialing, disconnected, emergency, empty, handset, help, horizontal, hotline, landline, line, nobody, offline, old, online, panoramic, phone, red, retro, rotary, sabotage, signal, space, stand, table, talking, technology, telecommunication, telephone, vintage, waiting, web, wireline,