美国、澳大利亚和印度等国家使用10位数的电话号码。

Countries like the United States, Australia and India use phone numbers with 10 digits.

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您可以想象到通过类似的算法根据国家代码识别国际电话号码。

You can imagine a similar algorithm for an international number with a country code.

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在一个上亿人都缺乏档案、地址甚至姓氏的国家，该号码相当有用，也能催生大量商机。

In a country where hundreds of millions of people lack documents, addresses or even surnames, this will be rather useful. It should also boost a wide range of businesses.

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