COMMUNICATION SERVER DEVICE, COMMUNICATION TERMINAL DEVICE, AND COMMUNICATION METHOD

摘要

PROBLEM TO BE SOLVED: To continue information exchange by maintaining anonymity without showing personal information each other when switching to a communication system through a usual exchange network to continue the information exchange when detecting a disconnection of short range radio communication. SOLUTION: Bluetooth communication is disconnected while message exchange is performed by the Bluetooth communication between portable telephone terminals A and B. The portable telephone terminals A and B respectively detect the disconnection of the Bluetooth communication. The portable telephone terminal A transmits to a server key information "X1" of a present terminal, key information "X2" of the portable telephone terminal B and an IP address "IP1" of the present terminal as notification information. Then, the portable telephone terminal B transmits to the server key information "X2" of the present terminal, key information "X1" of the portable telephone terminal A and an IP address "IP2" of the present terminal as notification information. The server connects the portable telephone terminals A and B which have transmitted the notification information having coincident key information on the basis of the respective IP addresses. COPYRIGHT: (C)2011,JPO&INPIT