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Getting started
Headset base installation
Installation options
IMPORTANT: If you purchased a handset lifter with your headset,
follow the installation instructions in the lifter manual.
If you purchased the AT&T Marathon without the lifter, you have
three installation options:
Option 1: Connect the headset to a corded or cordless telephone
(see page 14). You can use the provided line splitter to connect the
headset to a telephone.
Option 2: Connect the headset to a telephone wall jack (see
page 15). This option enables you to use the headset with a single
telephone line with or without a telephone.
Option 3: Connect the headset base to the curly handset cord of a
corded telephone (see page 16).
For this option, you can use the headset with a multiple line corded
telephone (such as the AT&T 1080, 1070 or 1040) or a digital
business system (such as a proprietary PBX telephone system). This
option requires the Marathon to be in LIFTER MODE to operate. You
may need to change the LIFTER AUDIO ADJUST setting on the base
for the best headset audio quality (see page 17).
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