If you can't make or receive a FaceTime call on your iPhone or iPad
You need a mobile or Wi-Fi connection to use FaceTime on your iPhone or iPad. Otherwise, you may experience issues for one of these reasons.
Check whether a FaceTime feature is available
FaceTime and FaceTime audio calling might not be available for all countries, regions or mobile carriers.
Call forwarding isn't available with FaceTime.
A FaceTime call can't be switched into a phone call or a FaceTime audio call. To do this, end the current call and then start a new call.
Update your FaceTime settings after you've set up a new device
If you experience issues with receiving a FaceTime call after finishing the setup process, update your device using the following steps:
Update your device to the latest version of iOS or iPadOS if needed.
In the Settings app, tap Mobile Data. Make sure your phone line is turned on. If you use multiple SIMs, make sure the phone number you want to use is selected and turned on.
In the Settings app, tap FaceTime. Turn FaceTime off and then back on.
Tap the phone number that you want to use with FaceTime.
If you have issues with Messages after you set up a new device, you can also update your Messages settings.
Use a fast connection to avoid sound quality issues with FaceTime
If your cellular connection or Wi-Fi network runs slowly, or other people stream 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 both you and the person you're calling are using a fast Wi-Fi or mobile connection. If you're using Wi-Fi, FaceTime requires a broadband connection.
If you still need help
If none of the above reasons apply to you, and you still can't make or receive FaceTime calls, follow these steps:
Make sure your device has a Wi-Fi connection to the internet or a mobile data connection.
Find out more if you're using router, firewall or security software that restricts internet access.
If you're trying to use FaceTime over Mobile, make sure Use Mobile Data (or Use Cellular Data) is turned on for FaceTime. Go to Settings and tap Mobile Data (or Cellular), then turn on FaceTime. If you're using an iPad, you may see Settings > Mobile Data.
Go to Settings > Apps > FaceTime and make sure that FaceTime is on.
If you see "Waiting for Activation", turn FaceTime off and then on again. Find out what to do if you can't activate FaceTime.
If you don't see the FaceTime setting, make sure that Camera and FaceTime aren't off in Settings > Screen Time > Content & Privacy Restrictions > Allowed Apps & Features.
Make sure you have the correct phone number or email address listed.
Go to Settings > General > Date & Time and turn on Set Automatically.