KX-HDV330RU, KX-HDV330RUB - Panasonic PBX Service Manual Supplement (repair manual). Page 16

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Display the menu. The contents of the menu differ depending on the settings and mode.
Touch display
For details about the display.

Return to the Home screen.
Depending on the mode, the screen you return to and other operations differ. Pressing this key in
standby mode displays function keys 1 to 4.
Ringer/Message Waiting/Missed Call Indicator
The lamp flashes when you are receiving a call, or when you have an unread message or missed
call notification.

Used to cancel the selected item.
Handset Hook
Keeps the handset stable when the unit is mounted on a wall. 

Used to access your voice mailbox.

Used to redial the last dialed number.

Used for performing headset operations.

Used to receive an incoming call in hands-free mode or mute the microphone/handset during a
conversation.

Used to adjust the ringer/receiver volume.

During talking, used to place a call on Hold. In standby mode, used to retrieve a call on hold if there
is one.
Microphone
Used for hands-free conversation.

Used for performing hands-free operations.

Used to transfer a call to another party.

Used to establish a multiple-party conversation.