How to use Input Mask to restrict a 10-digit phone number?

We have a phone number field, and don't want people to be able to only enter 7 or 8 digits instead of 10. Can we trap for that before submission to our system?

Jesse

Hey Jesse, you may use Input Masks to achieve this.

@ = Masks Letters

# = Masks Numbers

* = Masks Letters & Numbers

Since you're asking for a 10-digit phone number, use a Short Text Entry (Textbox) field and set its Input Mask like this: ##########

Complete guide: Getting-Started-with-the-Basics-of-Input-Masking 

(On the guide above, scroll down to Scenario #2 for a couple of examples with phone numbers)