AT&T TL9278 Cordless Telephone User Manual


 
Getting started
Replacing a handset
You may need to de-register your handsets if:
You have twelve registered handsets and need to replace a unit.
-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 each handset
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 start again with
step one above.)
3. The handset(s) will show SEARCHING FOR BASE and it will take about 10
seconds to complete the de-registration process. ALL handsets will show
NOT REGISTERED if de-registration was successful.
4. To re-register the handset(s) to the telephone base, follow the registration
instructions on page 15.
NOTES:
1. If the de-registration process was not successful, you may need to reset the system and try
again. To reset: pick up the handset and press the HOME/FLASH button, then press the
OFF/CLEAR button and place the handset back into the telephone base. You may also reset
by unplugging the power from the telephone base and plugging it back in.
2. You cannot de-register the handset(s) if any other system handset is in use.
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