Panasonic KX-NT551 Quick Reference Manual page 7

A Main LCD (Liquid Crystal Display):
KX-NT551: 1 line, KX-NT553: 3 lines, KX-NT556: 6 lines
B Message/Ringer Lamp:
When you receive an intercom call, the lamp flashes green,
and on an outside call, the lamp flashes red. When someone
has left you a message, the lamp stays on red.
C Flexible CO Buttons: Used to seize an outside line or perform
a feature that has been assigned to the key.
D Handset Hook: Keeps the handset stable when the unit is
mounted on a wall.
E Headset Jack
F PAUSE/PROGRAM (KX-NT551 only): Used to insert a pause
when storing a telephone number. This button is also used for
programming this unit.
PAUSE (KX-NT553/KX-NT556 only): Used to insert a pause
when storing a telephone number.
G CONF: Used to establish a multiple party conversation.
H MESSAGE: Used to leave a message waiting indication or call
back the party who left the message waiting indication.
I FLASH/RECALL: Used to disconnect the current call and
make another call without hanging up.
J REDIAL: Used to redial the last dialed number.
K AUTO ANS/MUTE: Used to receive an incoming call in
hands-free mode or mute the microphone/handset during a
conversation.
L TRANSFER: Used to transfer a call to another party.
M AUTO DIAL/STORE: Used for System/Personal Speed Dialing
or storing programme changes.
N HOLD: Used to place a call on hold.
O INTERCOM: Used to make or receive intercom calls.
P SP-PHONE (Speakerphone): Used for performing hands-free
operations.
Location of Controls
7