12
Provides ringer and hands-free (speakerphone) audio output. Speaker
Enables you to enter numbers, letters, and special characters. You can 
also use the dialpad keys to select menu items that have index numbers.
Dialpad 
The connector on the back of your phone that enables you to attach 
a laptop cable lock to your phone so you can secure it to a desktop. 
For more information on locking your phone to the desktop, see 
Security Slots on Polycom Phones (Technical Bulletin 64654).
Security slot 
Flashes red to indicate new messages.
Message Waiting
Indicator
Home / Lines key  Press     from any screen to display Home view. From Home 
view, press      to display other phone views. 
Enables you to place and receive calls using the speakerphone. 
The key glows green when activated.
Speakerphone key 
Mutes local audio during calls and conferences. The key glows red 
when activated.
Mute key  
Adjust the volume of the handset, headset, speaker, and phone’s ringer.Volume keys 
Transmits sound to other phones. Microphone 
Feature Description
The 3.5-inch diagonal screen is backlit.Screen
Scroll through displayed information or options. Select a field of 
displayed data.
Navigation keys/
Select key
Enables you to place and receive calls through a headset. The key 
glows green when an analog headset is activated.
Headset key