Apparatus, system, and method of managing data transmission, and carrier medium storing a corresponding transmission management program

摘要

A transmission system (1) manages association information (5005) that associates, for one or more sessions, terminal identification information (01) identifying each one of a plurality of transmission terminals (10) currently participating in the session, with reservation identification information identifying reservation of the communication session. When receiving a request for starting a communication with a counterpart transmission terminal (10db) from a request transmission terminal (10ab) the transmission system (1) obtains reservation identification information (rsv02) associated with the counterpart transmission terminal (10db) using the association information (5005) and counterpart terminal identification information (01db). Then, the transmission system (1) determines whether reservation identification information (rsv02) associated with the request transmission terminal (10ab) matches the reservation identification information (rsv02) associated with the counterpart transmission terminal (10db). Based on the determination result, the request for starting communication with the counterpart transmission terminal (10db) is accepted or rejected.