How to check for a number via SMS?

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Stepan19982021-12-26 17:42:03

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Stepan1998, 2021-12-26 17:42:03

How can we make sure that when we try to click send, we can somehow check if the number really belongs to a person?
For example, send him an SMS with a confirmation code.

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Rsa97, 2021-12-26
@Rsa97

For example, send him an SMS with a confirmation code.

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