Communication management system, communication terminal, communication system, and recording medium

A method of controlling candidate information, comprising:

• managing session information regarding a contents data session being established to communicate contents data among a plurality of participating communication terminals;
• receiving a request for registering a group of the plurality of participating communication terminals that are currently participating in the session, from a first participating communication terminal of the plurality of participating communication terminals, during when the session is being established;
• and
• in response to the request for registering, storing first candidate information of the first participating communication terminal in a first memory, the first candidate information associating the group of the plurality of participating communication terminals with the first participating communication terminal.

A non-transitory recording medium storing a plurality of instructions which, when executed by a processor, cause the processor to perform a method, comprising:

• managing session information regarding a contents data session being established to communicate contents data among a plurality of participating communication terminals;
• receiving a request for registering a group of the plurality of participating communication terminals that are currently participating in the session, from a first participating communication terminal of the plurality of participating communication terminals, during when the session is being established;
• and
• in response to the request for registering, storing first candidate information of the first participating communication terminal in a first memory, the first candidate information associating the group of the plurality of participating communication terminals with the first participating communication terminal.