10Volume control mute, tuning
Volume control
English
Adjust the speaker volume with the Up/Down key during the call.
Mute function
Press the Mute key to switch off the micro- phone. The mic indicators change to red. Press again to switch on the microphone. The mic indicators change back to green.
Tuning
The sound is adjusted automatically for the room and the telephone line when Konftel 200/NI is switched on. Konftel 200/NI senses the acoustics of the room and adapts continu- ously during the call. For manual tuning, press the Up/Down key at the same time. A brief noi- se will be heard.
Konftel 200/NI • User Guide