Ключевые слова: abstract, aid, assistant, blue, business, care, circle, communication, consultant, consultation, contact, contour, conversation, corporate, counseling, customer, design, expertise, flat, free, headphones, helpful, helpline, icon, illustration, isolated, linear, mark, medicine, operator, phone, pictogram, practitioner, professional, representative, secretary, service, service occupation, sign, speaking, staff, stroke, support, symbol, talking, telephone, thin, web template, work,