There's a contact on my computer who i can't facetime but i can facetime all the rest. I know this contact has an iPhone. How do i fix this?

There's a contact on my computer who i can't facetime but i can facetime all the rest. I know this contact has an iPhone. How do i fix this?

If they do not have Facetime turned on, that may be the issue. If they have an older iPhone that does not have Facetime, that also could be the issue.

Are they able to Facetime with other people? And can you contact them through email or SMS? If so call them to see if they are getting your FT requests or have been having issues with using the app or if they even use it at all.