Siemens HiPath 5000 RSM - Manual (Page 14)

Step by Step
Making Calls
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Making Calls
Dialing Numbers
Lift the handset.
Internal calls: Enter the station number.
External calls: Enter the external code and the station
number.
The called party does not answer or is busy:
Replace the handset.
Caller ID Suppression
You can prevent your station number or name from ap-
pearing on the displays of external parties you call. The
feature remains active until you deactivate it.
Lift the handset.
or Enter code for "suppress" or "restore".
The service personnel can turn caller ID suppres-
sion on and off for all telephones.