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If you are replacing a handset on a system that has the maximum number
of registered handsets (4) or wish to change the assigned handset num-
ber of your registered handsets, you must first de-register all the hand-
sets, and then re-register all handsets.
To de-register all handsets (E5917/E5926/E5927B/E5937B/
E5938B/E5939B/E5947B)
• Press and hold HANDSET LOCATOR on the main telephone base until
the IN USE light starts to turn on then flash (about 10 seconds), then
release the HANDSET LOCATOR button.
• Press and release HANDSET LOCATOR again. The IN USE light will turn
off and in a few seconds, all handsets will be de-registered.
• The handset will show NOT REGISTERED if de-register was success-
ful.
NOTE: If the de-register process was not successful you may need to reset the system and try
again. To reset: pick up the handset and press the PHONE button, then press the OFF but-
ton and place the handset back into the cradle.
NOTE: You can only deregister handsets when the handsets and the base are not being used.
NOTE: To re-register the handset to the telephone base follow the registration instructions on
page 5.
Replacing a handset on a full system
NOT REGISTERED
7