Reference Number
Feature
Feature Description
3
Touchscreen
Enables you to select items and navigate menus on the
touch-sensitive screen.
4,5
Volume keys
Adjusts the volume of the handset, headset, speaker,
and ringer.
6
USB port(s)
CCX 400 phones contain one USB-A port.
Enables you to attach a USB flash drive or USB
headset.
7
Headset indicator
Displays when the phone is powered on. The icon
glows green or blue when a headset is connected and
activated.
8
Speakerphone indicator
Displays when the phone is powered on. The icon
glows green when activated.
9
Speaker
Provides ringer and speakerphone audio output.
10
Mute key
Mutes local audio during calls and conferences.
Getting Started
12