For the CP930 replacement please refer to the user guides for the Yealink CP935W.
You can mute the microphone during an active call so that the other party cannot hear your discussion with your col-leagues.
To mute or unmute a call:
- Tap any mute touch key (
), on the bottom or sides of the phone, during a call to turn off the microphone.
The mute touch keys LED change from green to red. - Tap any mute touch key again to unmute the microphone.
The mute touch keys LEDs change from red to green.
Note that the mute touch key LED can indicate other phone statuses, besides mute.