In Elementor you can add a form to your layout with different type of inputs like phone number.
Beware! Form element is a part of the Raven elements. Raven is an exclusive plugin developed by Artbees which represents new useful elements to Elementor.
In order to add a phone number input to a form widget:
1. In Elementor, drag and drop the Raven Form element to your page, so that a new dashboard on the left will emerge with the element's settings.
2. In Content tab and Forms Fields section click on + ADD ITEM.
3. Set the type of the element to Tel.
4. Update the page.