What I remember from my phone interview:
In general, be able to emphasize why you are an excellent applicant for their program (remember, it's a program with a medical emphasis). From what I remember, they ask questions about your clinical experience (observations in undergrad, clinical hours, etc), job experience, what future changes in the SLP field you are interested in, why you are interested in a program with a medical emphasis, why Utah, what specialty you are interested in (it's okay to say you're unsure). That's all I remember but it's super quick! It's about 20-30 minutes. Try to have questions ready to ask them as well!