FINE TUNING
Automatic tuning
When the Konftel 100/D is turned on, it auto- matically adjusts sound levels to the room and the telephone line. Konftel 100/D registers the room’s acoustics and makes adjustments continually during the call.
Manual tuning
To eliminate possible echo during a call, Konftel
and 
100/D can be tuned manually. Press the – and + keys simultaneously. A short noise burst will be heard.
ENGLISH
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