Yes, you can. In your Form Editor, go to Specific Fields and add a Phone field. Then, select in the Number Format dropdown list the format that suits your needs. The Phone field consists in three separate boxes. The number of digits accepted in each one is different, in accordance with each standard format.
If you need any other phone field format, you can add a short text field and enable the prefix option. In the prefix input box, type up as many as characters as you need.