I would like my users to be able to enter an extension without entering a phone number. Right now if you try to submit a ticket with an extension but no phone number it says "Phone number required". So you can put a phone with no extension, or no phone at all, but as soon as you put in an extension by itself you get "Phone number required". I know that you can edit class.ticket.php to turn off and on required fields and I see code which specifically states "Make sure phone extension is valid" in two places, but it seems as though if I comment those sections out, or even delete them it doesn't change anything. I doesn't help that I know zip about programming :
Ultimately, what I'd like to do is ensure that they IF they enter an extension that A: It doesn't require a phone number and B: That the system validates that the extension is four digits.
Thanks in advance.