If you're having trouble hearing the person on the other end of the line when you receive calls on your iPhone, it could be a problem with your device's audio settings.
Here is a simple solution to resolve sound problems on your iPhone when receiving calls.
Fix iPhone Sound Issues
To adjust your iPhone's call audio settings, you'll need to open the Settings app on your device.
Once you've opened the app, look for the Accessibility option and click on it.
Next, click on Touch, and then scroll down until you see the Call Audio Routing option.
Click on this option to select your preferred audio device.
If you're having trouble hearing the person on the other end of the line, select "Bluetooth Headset" or "Speaker."
This will allow you to hear the receiver's voice through your Bluetooth device or iPhone speaker.
This is especially useful if you're wearing a Bluetooth headset while using your iPhone.
By adjusting your iPhone's call audio routing settings, you'll be able to hear the person on the other end of the line more clearly and without any issues.
If you continue to experience sound problems, you may want to check your device's Bluetooth settings or contact Apple support for further assistance.