Siemens hicom 150 H optiset E standard Operating Instructions Manual page 20

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Program/Service
* 84=Trace call?
Mute
Mute
Mute on?
Mute off?
Program/Service
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You can have the carrier identify malicious external call-
ers. You can save the caller's station number during the
call or for 30 seconds after the call ends. However, it is
essential that you do not replace your handset during
this time.
Press the key. The LED lights up.
and
Select and confirm.
or
Enter the code.
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To prevent the other party from listening in while you
consult with someone in your office, you can temporari-
ly switch off the handset microphone or the handsfree
microphone. You can also switch on the handsfree mi-
crophone to answer an announcement via the tele-
phone speaker (speaker call, Æ page 18).
Precondition: You are conducting a call. The micro-
phone is switched on.
Press the key. The LED lights up.
or
Press the illuminated key. The LED goes out.
or
Select and confirm.
or
or
Press the key. The LED lights up
or Enter the code for "on or "off".
After you have finished tracing the call, the data
is stored on the carrier's system. Now contact
System Support.