Abstract: To supplement the conversation amount which may become deficient in a conventional regular conversation and improve a practical applicability, a free talking service is provided which comprises: a step of generating a free talk classroom-table in the user connection table (20) provided in the multimedia communication server (10), a step of registering instructor terminal who can make a response in the above generated table, a step of receiving an entrance request from student terminals, a step of registering a student terminal for the table in case that there is a vacancy in the free talk classroom, a step of receiving an end request from student terminals, a step of deleting the student terminal submitting an ending request from the table, and to which a free entrance can be made.