Cisco 8832 User Manual page 24

When the conference phone is in a call, the expansion microphone LED around the Mute
green.
When the microphone is muted, the LED is lit red. When you press the Mute button, the phone and the
expansion microphones are muted.
Install the Wired Expansion Microphones, on page 9
The Cisco IP Conference Phone 8832 supports two expansion wireless microphones, available with a
charging cradle in an optional kit. When the wireless microphone is placed on the charging cradle for
charging, the LED on the cradle is lit white.
button is lit