Ключевые слова: black, business, businessman, call, call center, caller, communicate, communication, concepts, conference phone, connect, connection, contact us, customer service, desk, dial, dialing, display, emergency support, equipment, finance, finger, ideas, it support, keypad, network, number, office, on the phone, operator, phone, pushing, representative, ringing, service, support, technology, telco, telecom, telecommunications, telephone, telephone receiver, touching, voip, workplace,