How to change the “Phone” & “Fax” wording?

They have two phone numbers, one called “Admissions Phone Line” and one called “Main Phone Line.” Since their fax won’t be listed, I thought I could just change the wording for “Fax” and for “Phone” but didn’t see how to do that in the doc.
I also searched functions.php and didn’t see “fax’ in there at all. Could you tell me where in the code to change those two words? Thank you for any suggestions.

The page I need help with: [log in to see the link]