Vodafone Group Plc.

Eiichi Kataoka

Masayuki Doi

Tomonori Aoki

Yusuke Murai

Tadahisa Iritani

The present invention provides a system using an international roaming-capable mobile communication network in which a server controls the form in which a service is provided in accordance with the country of a service area in which a mobile station is located. The mobile stationdetermines the service area in which the mobile stationis located in accordance with a mobile communication mode set by a mobile communication mode setting function. Alternatively, the mobile stationdetermines the service area in which it is located through notification information relating to a mobile communication network system, received from a base station. When the mobile stationtransmits a request for a service to a content provider server, the mobile stationsimultaneously adds a region header describing the determined service area. A gateway G/Wmay add the region header instead of the mobile station

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Minato-ku, Japan

Eiichi Kataoka