Fujitsu Corporation

Ryuji Fukuhara

Masahiro Tanaka

Tomoyuki Furutono

Junji Tagane

Kenichi Sakurai

Norimichi Hiroshige

Minoru Nishida

Ryuji Oda

Akio Koga

Kaori Chigusa

Masahiko Kagawa

When a connection control device determines that the connection control device is in a congested state, based on whether a usage of at least one of hardware resources necessary for call processing to establish a call connection is equal to or more than a predetermined threshold value, the CPU of the connection control device forcefully disconnects an established call connection after a connection available time elapses, and, when an INVITE message is transmitted from a terminal device, the CPU of the connection control device receives the INVITE message, calculates the wait time, creates and transmits a response message stating the wait time, and stores the message as a reserved call on a reservation list.

Telephony system, connection control method, connection control device and recording medium

A storage unit manages a receiving order by storing a received call processing message. A retention unit retains key information, which is included in the call processing message, and element information, which is correlated to the key information and included in the call processing message, by updating the two pieces of information for every key information at every time when receiving the call processing message. A call processing execution unit carries out a call processing for each call processing message stored by the storage unit at a predetermined time interval in a lump based on the key information and element information stored by the retention unit.

Telecommunication server apparatus

Growing community of inventors

Fukuoka, Japan

Ryuji Fukuhara