Fujitsu Corporation

Keiichiro Yamakawa

Kiyomi Hasesaka

Takuji Oyama

Yuji Tajima

Takashi Mitsuhashi

Takehito Tsurumi

Takashi Kitano

A relay device includes a receiver, an information obtaining unit, a parameter storage unit, and a parameter setting unit, and relays a packet which is transmitted from a first network to a second network. The receiver receives the packet from the first network. The information obtaining unit obtains data type information for identifying a type of data which is transmitted and received by the packet. The parameter storage unit stores a control parameter which is used for controlling communication quality in the second network, so as to be associated with a type of transfer data indicating data transferred to the second network. The parameter setting unit sets to the packet the control parameter which is associated with transfer data of a same type as data identified by the data type information, and outputs the packet to which the control parameter is set to the second network.

Relay device

An I-CSCF and an S-CSCF are included in a single call controlling apparatus. A message from a terminal directed to one of a plurality of degenerate-call controlling apparatuses. The I-CSCF in that apparatus receives the message and forwards the message to an S-CSCF that serves as the storing destination, which is specified for each subscriber in advance. The I-CSCF is configured to receive a message that has been forwarded from the same call controlling apparatus or another call controlling apparatus and to control sessions of the terminal based on the received messages.

Call controlling apparatus, call controlling method, and computer program

Growing community of inventors

Kawasaki, Japan

Keiichiro Yamakawa