FIELD: communications engineering. SUBSTANCE: system has first terminal that functions as agent of automatic call allocation system for processing incoming calls of clients; first connection between first terminal and second terminal that functions as client handles agent's voice signals and client's voice signals; upon establishing first connection between first and second terminals first terminal receives request from check terminal that functions as supervisor's terminal for establishing check connection; agent's terminal responds to request for establishing check connection by engaging supervisor's terminal to set up check connection so as to enable agent to transmit agent's voice signals and client's voice signals to supervisor's terminal; agent's terminal checks first connection for simultaneous transmission of agent's and client's voice signals. EFFECT: enhanced level of services rendered to clients. 10 cl, 6 dwg
