AT&T Marathon - Option 2: Headset Base Stand-Alone Installation; Installation

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Getting started
Headset base installation
Option 2: Headset base stand-alone installation
In order to make calls using thisusing this installation option, you need a, you need a
telephone plugged into the same telephone line or a dial pad
(sold separately). Make sure the headset base mode is set toMake sure the headset base mode is set to
NO LIFTER MODE.
Plug one end of the
telephone line cord into
the TEL WALL JACK
(red dot) at the back of
the headset base.
•
A DSL filter (not included)
is required if you have DSL
high-speed Internet service.
The DSL filter must be plugged
into the telephone wall jack.
Telephone
line cord
Plug the other end of
the telephone line cord
into a telephone jack.
•
Plug the headset
base power adapter
into an electrical
outlet not controlled
by a wall switch.
•
Plug the small end of
the headset base power
adapter into the POWER
jack (green dot) at the
back of the headset base.
•