Customer contact data collection is the single most important key in your business. The telephone remains the most popular way to contact customer.

Here is a simple Callback form.

The user enters the name, message and phone number. Phone numbers in your database must be formatted correctly to one standart.

The Phone field type will help you with this. You can find it in the "Standard" section.

In the field editing, you can select the input mask from the list:

Or enter your own mask:

Don't forget to click on the "update" button to save the changes. 

The phone number input mask provides a uniform input format for all users, which greatly simplifies working with the database.

Read how to start SMS newsletter in your database by this link.