Making calls using the headset
Muting the headset’s microphone
Press the Audio button.
The microphone is muted. While the microphone is muted, the
Link LED 
on the base station flashes red.
Unmuting the headset’s microphone
Press the Audio button.
You hear a beep in the headset. The muting is canceled and the Link LED 
on the base station lights up blue.
If you leave the DECT range
In normal office buildings, the range between headset and base station is up to 55 m. If, during a call, the audio quality deteriorates or the link breaks down completely, you hear a descending sequence of beeps in the headset. The Link LED 
on the base station lights up red.
You hear a ring tone in the headset.
55 m | Press the Link button on the headset to resume the call. |
| |
| If your softphone supports call control, the call will automatically be |
| ended 60 seconds after leaving the DECT range. |
D 10 series 22