Ключевые слова: approval, bubble, call, center, chat, collection, concept, consultant, consulting, contact, contour, customer, design, employee, evaluation, feedback, flat, form, group, headphone, headset, help, hotline, icon, illustration, like, line, linear, logo, minimal, online, operator, outline, person, pictogram, rating, review, service, set, shape, sign, simple, speech, support, survey, symbol, telephone, template, thin,