Ключевые слова: 7, 24, always, anytime, assistance, business, call, center, centre, clock, contact, customer, day, emergency, four, headphones, headset, help, helpdesk, helpline, hotline, hour, hours, icon, illustration, information, microphone, notice, office, online, open, operator, phone, service, seven, shop, sign, store, support, symbol, talking, telemarketing, telephone, time, twenty, watch, week, work, worker,