Installation; Battery Installation - AT&T 984 User Manual

INSTALLATION

If you are installing multiple phones in your telephone system, you must
install and program one set at a time. If more than one extension is
assigned the same extension number, a repeating short ring (error
ring) sounds at the extension you are programming and the screen
display includes
Assign a different extension number from 11 to 26 (see "Assign an
Extension Number to Your Phone" on page 26).

Battery Installation

Install a 9V alkaline battery (purchased separately) in order to use some
features of this telephone in the event of a power failure. If power fails and
a working battery is installed, all four lines of this phone will work only to
answer calls with the handset or headset, and to dial calls using the key pad
and the One Touch or Redial features. No other features will work until
power is restored.
1 Remove the wedge from the underside of the base unit.
Press on the tabs and pull the wedge away from the phone.
2 Remove the battery compartment screw with a small
Phillips head screwdriver.
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