Phone Field

This Extra Field Type is available in Profile Builder 2.0, Hobbyist or Pro.

You can use this extra field type to allow users to add a phone number.
You can specify the field title, meta-name to be stored in the database, description and phone format.
Also, you can set whether this field should be required or not.

Profile Builder - Phone Field Back End

This is how it looks like in the front-end.

Profile Builder - Phone Field Front End