OLD SCHOOL TECH HELP

Hey, I grew up with analog dial phones. I see NO info anywhere on how to set up a phone on my end, if I sign up for ZOOM Phone.  I have an old analog desk phone. so IF I sign up for Zoom Phone, can I use it and if so, what am I connecting to? Modem? Router? Computer? What? OR, do I have to buy a phone.  Also, I do interviews via phone using a telephone interface. Can I use it?

Alex Stan