Ключевые слова: assistance, assistant, background, business, button, call, call center, center, chair, client, communication, company, computer, concept, contact, customer, cyberspace, desk, equipment, headphone, headset, help, helpdesk, helpline, horizontal, hotline, internet, keyboard, laptop, man, marketing, microphone, modern, no people, office, online, operator, pc, phone, reception, sale, service, support, technology, telemarketing, telephone, voice, voip, work,