Ключевые слова: agent, app, assistance, black, business, call, center, chat, communication, computer, concept, contact, customer, design, element, faq, feedback, graphic, headset, help, icon, illustration, info, information, internet, isolated, line, linear, marketing, message, mobile, online, outline, person, phone, pictogram, question, service, set, sign, support, symbol, technology, telephone, testimonial, thin, time, vector, web, white,