Earpiece volume
The scroll keys on
your
phone will adjust the earpiece
volume during a phone call. The top scroll key increases
while the bottom one decreases the volume.
If an accessory like a headset or a car kit, or one with its
own loudspeaker, is connected to your phone, the
scroll keys will adjust the volume for that accessory.
Note: Using the scroll keys to adjust earpiece volume functions
only during phone calls.