Can I use the Phone field in the standard format for my country?

Yes, you can. In your Form Editor, go to the  Advanced tab and add a Phone field. Then, select in the Number Format dropdown list the format that suits your needs.

Custom Phone Field

The Phone field consists of three separate boxes. The number of digits accepted in each one is different, in accordance with each standard format. If the phone format doesn’t work for you, use a short text field with a regex code with the exact validation that you need.