Form Validation for Required Phone Numbers

[cadalmas]

I have a phone number and a mobile number field on a form. I am requiring at least one of these fields to be filled out or else the form cannot be submitted. How can I do that? 

[SanfordWhiteman · Accepted solution]

Like this:

MktoForms2 :: Require Any-Of v1

[cadalmas]

Thank you Sanford. Will try it out.