Look it up whenever in doubt
Symbols on the display
The microphone is switched on:
(microphone in a connected headset or KonfTel).
The loudspeaker is switched on (monitoring).
Microphone and loudspeaker are switched on (handsfree).
The microphone is switched off (mute).
You are in a teleconference.
No entries in the call list.
You have received a message.
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