Siemens HiPath 3000 Operating Instructions Manual page 23

Making Calls – Basic Functions
Step by Step
When call forwarding is active, a special dial tone
sounds when you lift the handset.
If DID DTMF is active (contact your service per-
sonnel), you can also forward calls to this desti-
nation. Destinations: fax = 870, DID = 871,
fax DID = 872.
If you are a call forwarding destination, your dis-
play will show the station number or the name of
the originator on the upper line and that of the
caller on the lower line.
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