Ключевые слова: 24, 24 hours, all day, always, assistance, business, call center, communication, computer, connect, connection, contact, customer, design element, discussion, every time, headphones, headset, help, help desk, helpline, hour, hrs, icon, illustration, internet, isolated, microphone, night, opening hours, operator, phone, representative, retail, sales, secretary, service, shop, sign, speaker, store, support, symbol, technology, telephone, week, work, working,