Ключевые слова: access, administration, agent, answer, black, broadband, business, busy, button, call, call center, center, company, computer, control, customer, desk, dial, engineer, fair, headphone, headset, helpdesk, helpline, hotline, ip, job, landline, laptop, machine, modern, network, office, operator, phone, pressing, provider, reception, response, service, speaker, station, support, system, technology, telecommunication, telephone, training, voice,