switel DE28 Serie Mode D'emploi page 121

6 Other features
Key lock
☞
The key lock prevents functions assigned to buttons being activated
inadvertently. Incoming calls can still be taken in the normal way even when
the key lock function is activated.
Switching the handset ringer on/off
☞
You can turn off the ringer via the menu item "HS SETTINGS/
RING SETUP/RING VOLUME" as well.
Switching off the handset
☞
You can switch off the handset for saving battery capacity.
Press and hold down the star-key until the key lock icon
appears in the display.
For unlocking the keypad again press and hold down the
star-key until the icon disappears.
Press and hold down the #-key until the
in the display.
For turning the ringer on again press and hold down the #-
key until the icon disappears.
Press and hold down the On Hook-button. After a few sec-
onds the handset will be switched off. The display illumina-
tion goes down.
For switching the handset on again press and hold down the
On Hook-button until you hear a short beep and the display
is illuminated.
Other Features
icon appears
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