Patent Number: 7,821,989

Title: Call management method, call management system and message processing server system

Abstract: A call management method makes a call management system perform a process of releasing resources that are secured for a terminal device that has become a communication disable state among resources in the call management system that are secured for each of the terminal devices under speech communication (#103 and #108), and sending a message for finishing speech communication to a terminal device on the other end of the speech communication without transmitting it to the terminal device that has become a communication disable state (#112), when it is detected that one of the terminal devices under speech communication with each other has become a communication disable state in a mobile communication network (#102).

Inventors: Hayashida; Hiroyasu (Fukuoka, JP), Chigusa; Kaori (Fukuoka, JP), Nakamatsu; Ryouji (Fukuoka, JP)

Assignee: Fujitsu Limited

International Classification: H04W 4/00 (20090101); H04L 12/50 (20060101); H04L 12/28 (20060101); H04J 3/12 (20060101)

Expiration Date: 2018-10-26 0:00:00