AT&T E5903B Cordless Telephone User Manual


 
8
Getting started
Replacing a handset
You may need to de-register your handsets if:
You have the maximum number of registered handsets (four) and
you need to replace a handset.
- OR -
You wish to change the designated handset number of your reg-
istered 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.)
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.
4. To re-register the handset(s) to the telephone base, follow the
registration instructions on page 6-7.
NOTES:
1. If the de-registration process was not successful, you may need to reset the
system and try again. To reset: pick up any registered handset and press the
PHONE/FLASH button, then press the OFF/CLEAR button and place the
handset back into the base. You may also reset by unplugging the power from
the telephone base and plug it back in.
2. You cannot de-register the handset(s) if any phone connected to your phone
line is in use.
NOT REGISTERED