Callers get busy signal
Airplane mode is not on, notifications are on, focus is not on.
iPhone 14, iOS 17
Do you have any cellular reception with your carrier?
If so, try and force restart the iPhone to see if the issues persist
- Press and quickly release the volume up button.
- Press and quickly release the volume down button.
- Press and hold the side button.
- When the Apple logo appears, release the side button.
If they issues persist it is most likely something on your carriers side, please contact them for further help