Transmission management system, management method, and computer-readable recording medium

A management method for a transmission management system that manages destination information indicating destination candidates of a request source terminal of communication, the method comprising:

• receiving a destination registration request designating one or more destination terminals as the destination candidates of the request source terminal;
• registering one or more request destination terminals in the destination information as destination candidates of the request source terminal when approval of the destination registration request can be omitted;
• transmitting an approval request for the destination registration request to the one or more request destination terminals designated as the destination candidates when the approval of the destination registration request cannot be omitted;
• receiving a response to the approval request from the one or more request destination terminals;
• and
• registering the request destination terminal that transmitted the response to the approval request indicating approval in the destination information of the request source terminal as a destination candidate.

A non-transitory computer-readable recording medium that contains a computer program that causes a computer to execute:

• receiving a destination registration request designating one or more destination terminals as the destination candidates of the request source terminal;
• registering one or more request destination terminals in the destination information as destination candidates of the request source terminal when approval of the destination registration request can be omitted;
• transmitting an approval request for the destination registration request to the one or more request destination terminals designated as the destination candidates when the approval of the destination registration request cannot be omitted;
• receiving a response to the approval request from the one or more request destination terminals;
• and
• registering the request destination terminal that transmitted the response to the approval request indicating approval in the destination information of the request source terminal as a destination candidate.