Ключевые слова: 24, advise, agent, assist, assistance, business, care, center, color, colored, concept, connection, customer, day, design, element, flat, guide, guidebook, headphone, headset, help, hour, icon, illustration, info, instruction, isolated, line, operator, phone, pictogram, remote, service, sign, simple, store, support, supporter, symbol, talk, tech, technology, telephone, time, wake, web,