AT&T CL81100 - Manual (Page 13)

Adding and registering handsets
The handset needs to register with the telephone base before use.
You must register each handset separately.
When first purchased, all expansion handsets
show
Out of range OR No pwr at base on the
screen. The new handset should be charged
without interruption for at least 30 minutes before
registering to the telephone base.
To register a handset to your telephone base
1. Make sure the handset is out of the telephone
base or charger and alternately shows 1.Press
HS LOC on base 4sec and 2.Then press # on
handset before you begin registration.
2. Press and hold /HANDSET LOCATOR on the
telephone base for about four seconds (until the
red
IN USE light on the telephone base is on)
and then release the button.
3. Press # on the handset. The screen shows
Registering... Please wait. It takes up to 60
seconds to complete the registration. Then
HANDSET X Registered appears on the screen,
with
X being the handset number (1-12) and the
handset beeps. The handset is now registered
with the telephone base.
4. If the registration is not successful, the handset
screen displays Registration failed appears on the
screen. Please start again from steps 1-3 above.
NOTE: You cannot register a handset if any other system
handset is in use.
HANDSET X
Registered
2.Then press #
on handset
1.Press HS LOC
on base 4sec
Out of range OR
No pwr at base
Registering...
Please wait
9
Adding the handset to your telephone base