■ Adjust call volume
To adjust the volume during a call or when a call is alerting, turn the
wheel left to decrease the volume or right to increase it. When you
change the volume, the horizontal bar at the top of the display moves
accordingly. The volume is set only for the current call. To set the default
volume for calls, see “Audio settings”, p. 25.
To mute the volume, press
in the standby mode or when you receive
a call. To restore the original volume, press
.