Can’t hear callers
Can’t hear calls unless on speaker?
iPhone X, iOS 14
Can’t hear calls unless on speaker?
iPhone X, iOS 14
Start your troubleshooting here, If you hear no sound or distorted sound from your iPhone, iPad, or iPod touch speaker - Apple Support
Start your troubleshooting here, If you hear no sound or distorted sound from your iPhone, iPad, or iPod touch speaker - Apple Support
Follow the steps in the link in my post marked Apple Recommended.
Perhaps this article will help:
On our new iPhone 11, we can't hear the voice of the incoming caller
Can’t hear callers