Ключевые слова: 24, alarm, assistance, business, call, center, chat, clock, communication, concept, connect, connection, contact, customer, day, deadline, delivery, design, four, help, hotline, hour, hours, icon, illustration, internet, logo, message, minute, mobile, online, open, operator, phone, retail, service, shop, stopwatch, store, support, symbol, talk, technology, telephone, time, timer, watch, work,