Philips D4550 Extended User Documentation page 7

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b
Scroll up on the menu.
Increase the earpiece/speaker volume.
c
Delete text or digits.
Cancel operation.
Change the sound profile during a call.
d
End the call.
Exit the menu/operation.
Press and hold to switch the handset
on or off.
e
Press to enter a space during text
editing.
Press and hold to lock/unlock the
keypad in standby mode.
f
Press and hold to enter a pause when
making a call.
Switch to upper/lower case during
editing.
g
Mute or unmute the microphone.
h Microphone
i
Turn the speaker phone on/off.
Make and receive calls through the
speaker.
j
Press and hold to make an intercom
call (for multi-handset version only).
Set the dial mode (pulse mode or
temporary tone mode).
k
Scroll down on the menu.
Decrease the earpiece/speaker volume.
l
Make and receive calls.
Recall key (This function is network
dependent.)
m
Access the main menu in standby
mode.
Confirm selection.
Enter the options menu.
Select the function displayed on the
handset screen directly above the key.
n Loudspeaker
o Battery door
EN
5

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