Enables you to attach a universal security cable lock to your phone so you 
can secure it to a desktop. 
Secures the handset in the cradle when your phone stand is positioned at 
a high angle. To secure the handset, remove the tab, reverse it so the 
protrusion points up, and re-insert it. Position the handset so the 
protrusion on the tab fits into the slot on handset. 
Provides ringer and speakerphone audio output. 
Enter numbers, letters, and special characters. You can also use the 
dialpad keys to select menu items that have index numbers. 
Transmits audio to other phones. 
Adjust the volume of the handset, headset, speaker, and ringer. 
Mutes local audio during calls and conferences. The key glows red when 
activated 
Enables you to place and receive calls using the speakerphone. The key 
glows green when activated. 
The key glows green when an analog headset is activated, and blue when 
a USB or Bluetooth headset is activated. 
Tap the screen to select and highlight screen items. To scroll, touch the 
screen, and swipe your finger up, down, right, or left. 
Displays the Home screen from other screens, and displays the Lines and 
Calls screens from the Home screen. 
Message 
Waiting 
Indicator 
Flashes red to indicate when you have new messages 
Enables you to attach a USB flash drive, a VVX Camera, or a USB headset.