Hitachi, Ltd.

Shiro Kihara

Kiyoshi Nagasawa

A communication control method for controlling data communication conducted between a portable information communication terminal and a data communication apparatus via a communication network including a radio communication network includes the steps of: determining whether data communication between a portable information communication terminal and a data communication apparatus has been interrupted by disconnection of a communication line; and in response to normal termination of data communication between a portable information communication terminal and a data communication apparatus, clearing accounting on data communication that was interrupted between said portable information communication terminal and a data communication apparatus by disconnection of a communication line within a predetermined time before the normal termination of the data communication.

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Yokohama, Japan

Shiro Kihara