International automatic roaming service method

Details International automatic roaming service method International automatic roaming service method

H - Electricity

04

Q

H04Q 7/36 (2006.01) H04Q 7/38 (2006.01)

Patent

CA 2328223

A method which can allow subscribers to select an international telephone service provider and appropriately provide a wireless communication service to a mobile station subscribed to a foreign wireless communication system is disclosed. The method of providing a wireless communication service to an international roaming mobile station includes the steps of: a) storing information as to whether the international roaming mobile station subscribes to an international roaming service in a subscriber profile of the mobile station; b) storing MSC IDs in a database of HLR; c) determining whether a REGNOT message is from an MSC of a home system based on the MSC IDs stored in the database when the REGNOT message is inputted from the MSC to the HLR; and d) sending information as to whether the international roaming mobile station subscribes to the international roaming service to the MSC based on the subscriber information when the RENOT message is not from the home system. Therefore, the international roaming mobile stations can receive a wireless commuunication service regardless of the telephone number scheme differences between the countries.

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