Hi Mikedavis128,
For help with FaceTime, test the steps below found in the article here: If you can't make a FaceTime call on your iPhone, iPad, or iPod touch - Apple Support
"If you have connection or sound quality issues with FaceTime
If your cellular connection or Wi-Fi network are running slow, or other users are streaming audio or video on the same Wi-Fi network, you might have these issues:
- Connection alerts or unable to connect
- Choppy video calls
- Black screen
- Dropped calls
Make sure that both you and the person that you're calling are using a fast Wi-Fi or cellular connection. If you’re using Wi-Fi, FaceTime requires a broadband connection."
You can also check and confirm your Wi-Fi connection status using the steps in the article here: Connect to Wi-Fi on your iPhone, iPad, or iPod touch - Apple Support
Best.