Communication system, connection controller, terminal, and control method

摘要

In a system including a plurality of terminals and a connection controller that controls connection among the respective terminals, the connection controller records terminals of a previous connection session and information on participants as session history information. In response to a request for a connection destination candidate from a terminal, the connection controller references the session history information and presents connection destination candidate terminals. The plurality of terminals transmits a connection request to the connection controller and receives a list of connection destination candidate terminals from the connection controller.