Panasonic KX-TG5456 - Manual (Page 17)

Preparation
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Soft keys
The handset features 3 soft keys. By
pressing a soft key, you can select the
function displayed directly above it.
L The functions displayed will vary
depending on how you are using the
unit.
L When a function does not appear above
a soft key, the soft key has no function.
Note:
L In these operating instructions, soft key
names are written inside brackets, the
same way as other unit keys.
Example:
Unit keys: {C}, {OFF}, etc.
Soft keys: {CID}, {MENU}, {C}, etc.
Handset backlit display and handset
keypad
The handset display and dialing buttons
will light for a few seconds after pressing
any of the handset’s controls or lifting the
handset off the base unit. They will also
light when a call is being received.