Siemens OptiPoint 410 - Using a Key to Activate;Deactivate Do Not Disturb

Operating the Telephone with the Display
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Step by Step
Using a Key to Activate/Deactivate Do Not
Disturb
Prerequisite: A function key must be configured (see
 page 90).
Press the Do Not Disturb key.
The LED is on.
If there is an incoming call, the caller hears busy tone.
However, calls for pickup groups will still be put
through.
The Do Not Disturb LED blinks.
To deactivate the function, press the "Do Not Disturb"
key again.
The LED goes out.
Do Not Disturb
This setting remains in effect as long as the LED
is on.
Do Not Disturb
Do Not Disturb
Do Not Disturb can also be switched on or off by
pressing the Do Not Disturb key during a call.