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
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