VVX 400 series hardware features
VVX 400 Series Hardware Feature Descriptions
Reference 
Number
Feature Feature Description
1 Security slot 
(on top)
Enables you to attach a universal security cable lock to your phone so you can 
secure it to a desktop.
2 Reversible tab 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 the handset.
3 Speaker Provides ringer and speakerphone audio output.
4 Soft keys Enable you to select context sensitive keys that display along the bottom of the 
screen.
5 Transfer key Transfers an active call to a contact.
6 Dialpad keys Enable you to enter numbers, letters, and special characters. You can also use 
the dialpad keys to select menu items that have index numbers.
7 Messages key Enables you to access and manage instant and voice messages.
8 Hold key Holds an active call or resumes a held call.
9 Microphone Transmits audio to other phones.
10 Volume keys Adjust the volume of the handset, headset, speaker, and ringer.
11 Mute key Mutes local audio during calls and conferences. The key glows red when 
activated.
Getting Started with a VVX Business Media Phone
Polycom, Inc. 15