Ntt Communications Corporation

Ryosuke Otsuya

Hiroaki Sadata

Yoshimasa Iwase

A terminal used as a terminal in a plurality of terminals in a system including the plurality of terminals that communicate with each other and a plurality of relay apparatuses. The terminal is configured to measure a delay time between the terminal and each relay apparatus of the plurality of relay apparatuses; select a relay apparatus from the plurality of relay apparatuses based on the delay time measured by the measurement means; and perform communication with another terminal via the relay apparatus.

Terminal, relay apparatus selection apparatus, communication method, relay apparatus selection method, and program

A communication control apparatus connected to two terminals and to a relay apparatus that relays P2P communication performed between the two terminals, including: storage means configured to store authority information including a communication method of the P2P communication permitted for each of the two terminals; reception means configured to receive a signaling signal mutually transmitted between the two terminals; and control means configured to control the communication method of the P2P communication based on the authority information when receiving the signaling signal.

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Miura-gun, Japan

Ryosuke Otsuya