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Replacing a headset
To deregister all headsets from an AT&T cordless
telephone base
This procedure deregisters all the headsets and handsets
registered to the cordless phone.
Press and hold / HANDSET LOCATOR on the telephoneon the telephone
base of the cordless phone until the IN USE light on the
telephone base turns on and starts to flash (at least 10
seconds), then release the / HANDSET LOCATOR button.
Immediately press and release / HANDSET LOCATOR again.
You must press / HANDSET LOCATOR while the IN USE
light is still flashing. (The light flashes for about 7 seconds. If
the light stops flashing, start again with step one above.) This
process may take up to 10 seconds to complete.
If your telephone base has no HANDSET LOCATOR button:
Press and hold the FLASH button until the screen displays
Deregister all handsets?, then release the button.
Press the YES softkey.
-OR-
Press and hold the LOCATOR button until the screen
displays Registering handset... followed by Deregister all
handsets?, then release the button.
Immediately press and release MENU/SELECT again.
Enter the following code on the headset by pressing the keys in
this order: VOLUME /+, MUTE, VOLUME /–, MUTE,
VOLUME /+, VOLUME /–, MUTE. TheThe ON/OFF light on the
headset flashes twice every five seconds if the deregistration
is successful.
NOTES:
See your telephone user’s manual to register the handsets again.
See page 11 of this manual to register a headset again.
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Operation