LG CU400 Owner's Manual (English) - Page 18

Backlight - batteries

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Your Phone Speakerphone You can use the speakerphone during a call by pressing the or [speakerphone] key located on the top of the phone. The loudspeaker is automatically deactivated when you end the call. Camera Camera key - Press this key to use the camera feature or to go directly to camera mode. Backlight A backlight illuminates the display and the keypad. When you press any key or open the folder, the backlight turns on. It turns off if no key is pressed within a given period of time, depending on the Backlight Timer menu option. After 30 seconds, the display turns off to conserve your battery power. To specify the length of time the backlight is active, set the Backlight Timer menu option (Menu 9.2.3). Headset jack Side key PTT key - Use for quick access to the PTT function. • Pressing and releasing this key while idle displays your PTT contacts. • Pressing and holding this key while idle displays your PTT history. • Pressing and holding this key while in a PTT call allows you to speak to the other call participants. External Display Your phone has an external display on the cover. It indicates when you have an incoming call or a message. It also alerts you at the specified time when you set an alarm by turning on its backlight and showing corresponding icon on it. 14

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14
Your Phone
Backlight
A backlight illuminates the display and the keypad.
When you press any key or open the folder, the
backlight turns on. It turns off if no key is pressed
within a given period of time, depending on the
Backlight Timer menu option. After 30 seconds, the
display turns off to conserve your battery power. To
specify the length of time the backlight is active, set
the Backlight Timer menu option (Menu 9.2.3).
External Display
Your phone has an external display on the cover. It
indicates when you have an incoming call or a
message. It also alerts you at the specified time when
you set an alarm by turning on its backlight and
showing corresponding icon on it.
Headset jack
Camera
Camera key -
Press this key to use the
camera feature or to go directly to
camera mode.
Speakerphone
You can use the speakerphone during a call by
pressing the
or
[speakerphone] key
located on the top of the phone. The
loudspeaker is automatically deactivated
when you end the call.
Side key
PTT key -
Use for quick access to the PTT function.
• Pressing and releasing this key while idle
displays your PTT contacts.
• Pressing and holding this key while idle displays
your PTT history.
• Pressing and holding this key while in a PTT call
allows you to speak to the other call participants.