Hotline color darker flat icons - Stock vector

hotline, helpline, helpdesk, call, phone, telephone, call-center, handset, support, assistant, assist, assistance, help, solution, speak, talk, consultation, discussion, interview, conversation, conference, operator, service, provider, agent, availability, attainability, clients, client-oriented, secretary, information, emergency, icons, round, circle, circular, orbicular, solid, symbol, set, flat, plain, simple