Polycom 4020 Telephone User Manual


 
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4. Key Functions
The handset has 21 keys:
Two keys are placed at the right side for volume control. Press upper or lower key to change the volume. Each
key-press turns volume one step up/down.
“MENU” - Go to menu structure or exits the menu structure. (Escape or “NO”)
” < ”, “REDIAL” - Menu: left, Cursor left, after a digit: delete last digit. Long press: delete all
From standby text: Redial Menu
” > ”, “BOOK” - Menu: right, Cursor right, After a digit: Store number in telephone book
From standby text: Telephone book read
”, “MUTE” - Confirmation (“YES”) or jump to next level in the menu. In off hook: Mute microphone
In on hook: Mute ringer. Long key press turns the handset OFF
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