what could be a suitable datatype for storing telephone numbers in sql server 2005? [duplicate]

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What datatype should be used for storing phone numbers in SQL Server 2005?

There are various datatypes from which 开发者_JAVA百科i can choose for example varchar or bigint or decimal or money but which one could be the best in all respect.

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VARCHAR - a telephone number is a highly geographically-specific data item, and may typically contain brackets, hyphens, or letters as well as numeric digits.