
Step by Step
Making and Answering Calls
12
Turning Do Not Disturb On and Off
You can activate the do not disturb function if you do not want the re-
ceive any calls. When do not disturb is activated, internal callers hear
a busy signal and external callers are rerouted to a telephone as-
signed for this purpose (ask the service personnel).
n Lift the handset.
or
w Enter the code for "on" or "off".
Trace Call: Identifying Anonymous Callers
You can have the carrier identify malicious external callers. You can
save the caller’s station number during the call or for 30 seconds af-
ter the call ends. However, it is essential that you do not replace your
handset during this time.
s You are engaged in an external call.
Enter the code.
Answering Calls from the Entrance
Telephone and Opening the Door
If an entrance telephone has been programmed, you can use your
telephone to speak to someone at the entrance telephone and to ac-
tivate a door opener.
If you are authorized to activate a door opener (contact the service
personnel), visitors can open the door themselves by entering a 5-
digit code (using a DTMF transmitter or installed keypad).
When you lift the handset, a special dial tone (continuous
buzzing) reminds you that "do not disturb" is active.
Authorized internal callers can automatically override the do
not disturb function after five seconds.
After you have finished tracing the call, the data is stored on
the carrier’s system. Now contact the service personnel.
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