Adjust The Lifter Audio - AT&T Marathon User Manual

Getting started
Headset base installation

Adjust the lifter audio

1. Press MODE on the headset base to change
the mode if the LIFTER MODE light is not
on. Make sure that the LIFTER MODE light
on the headset base is on.
2. Lift the corded handset from the
telephone cradle.
3. After you install and charge the battery
(see pages 8-10), put the headset next to
your ear.
4. Press ON/
a dial tone.
5. If there is no dial tone or the dial tone is
not clear, slide the LIFTER AUDIO ADJUST
switch on the side of the headset base
from A to G until the dial tone is clear.
6. If the dial tone is not clear, repeat step 5
until you find the clearest dial tone.
on the headset to listen for
OFF
17
MODE
LIFTER MODE light
ON/OFF
LIFTER AUDIO ADJUST