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A METHOD WHEREIN INTERNATIONAL ROAMING COSTS ARE REDUCED
A METHOD WHEREIN INTERNATIONAL ROAMING COSTS ARE REDUCED
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机译:减少国际漫游成本的方法
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摘要
The present invention relates to a method which reduces international roaming costs by enabling the operator of the subscriber's SIM card to be selected automatically, if any, in the country where the subscribers of operators, that are providing service as GSM operator in more than one country, are in.
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