: Press the Volume Down button on the left side of the device while the call is active to lower the earpiece or speaker volume.
If the volume remains too loud even at the lowest setting, check these accessibility and safety features: Adjust the volume on iPhone - Apple Support Iphone 13 Call Sound High Voiceee
To lower or adjust the call volume on your Go to product viewer dialog for this item. : Press the Volume Down button on the
when voices sound too loud, you must use the physical side buttons . Adjusting the volume from the Home screen often only changes the ringer or media volume, not the in-call speaker. Immediate Solutions During a Call Iphone 13 Call Sound High Voiceee