GE twin set 21880 - Manual (Page 28)

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Enter old PIN (0000) and press “INT/OK” key.
Enter new PIN (e.g. 1111) and press “INT/OK” key.
Enter new PIN again (e.g. 1111) and press “INT/OK” key to
confirm..
Note: maximum of 8 digits can be entered.
Default Settings
Press key until the BASE menu appears and press
“INT/OK” key.
Press or key to select the submenu ‘Default’ and press
“INT/OK” key.
Enter the PIN (factory setting = 0000) and press “INT/OK” key.
Press “INT/OK” key to confirm.
Deregister HS
If several handsets are registered on one base station, they can
deregister each other mutually. The last handset can not be
deregistered.
Press key until the BASE menu appears and press
“INT/OK” key.
Press or key to select the submenu ‘DEREGISTER’
and press “INT/OK” key.
Enter the PIN (factory setting = 0000) and press “INT/OK” key.
If necessary, Use
or key to select the handset and
press “INT/OK” key.
Press “INT/OK” key to confirm.
Corded Base
Power on Operation
The corded base is powered up by plugging the AC adapter to
the wall outlet / connected to Telephone network. Most of the
functions does not work properly when there is no AC power.
Only the corded phone can make and receive call (speaker
phone, caller ID will not work properly).