AT&T TL 74208 - Manual (Page 13)

9
Getting started
Replacing a handset
You may need to de-register your handsets if:
You have the maximum number of registered handsets (four) and
need to replace a handset.
-OR-
You wish to change the designated handset number of your
registered handsets.
You must first de-register ALL the handsets, and then re-register
ALL the handsets you wish to use.
Please read carefully through all the instructions on this page
before beginning the de-registration process.
To de-register all handsets
1. Press and hold HANDSET LOCATOR on the telephone base
for about 10 seconds (until the IN USE light turns on and starts
to flash), then release the
HANDSET LOCATOR button.
2. 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 seven seconds. If
the light stops flashing, pick up the handset and place it back
into the telephone base, then repeat step one above.)
3. The handset(s) will show CONNECTING... and it will take about
10 seconds to complete de-registration. ALL handsets will
show
NOT REGISTERED if de-registration was successful.
NOT REGISTERED