PER_PHONES table not store the country_code of candidate

Summary:

I maintain the phone number on the candidate, and I can select the country on the page, why is there no country code stored in the table? Although the COUNTRY_CODE_NUMBER field is stored in the table, there are cases in the system where a number corresponds to multiple countries, for example, 1 corresponds to several countries. such as 'AS'、'AG'....

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