Facetime not working on my iphone 12 Pro

Hello PerryKarl,

Thank you for posting in the Apple Support Communities. To assist the community in replying, you might consider providing more information about what you’re experiencing. Including the following details in your post may be helpful:

What’s happening? If you receive an error message, what does it say?

Is your software version up to date?

Is this happening to one contact in particular?

Try: Force restart iPhone also you may want to contact your carrier if you're unable to use cellular data.

Have a great day!