30
General Functions Making Calls
this case, if the network operator you
wish to use is not the default opera-
tor, you can key in the appropriate
operator’s code digits before entering
the telephone number.
Transmission of Your
Telephone Numbers
In ISDN there are different features
which allow or prevent the transmis-
sion of telephone numbers between
the calling and called parties.
Cl LIP Feature
The caller’s telephone number (if
transmitted) is displayed by means
of the corresponding call key. If this
number is also stored in your tele-
phone book, the caller’s name is dis-
played.
C LIR Feature
Before dialling an external tele-
phone number, you can decide from
case to case if you wish to prevent
your telephone number from being
displayed to the called party. To do
this, select
Suppress
number
from
one of the MenuCards described in
the next section. If this feature is not
provided, your telephone number
will always or never be displayed,
depending on the system setting.
Consult your system administrator
for more information.
MenuCards Before and
During a Connection
When your telephone is in an idle or
connection state, a short press of
MenuCard key provides you
with state-dependent MenuCards
displaying frequently used features
you can activate.
Examples
Another telephone in your pick-up
group rings, and you want to answer
the call. Lift the handset, press
MenuCard key , select
Pick-
up
and confirm this with .
You are now connected to the caller.
Alternatively, let us assume the line
you call is busy and you want the
person with this number to call you
back. When you hear the busy sig-
nal, press the MenuCard key
and confirm
Callback
with
.
The state-dependent MenuCards are
illustrated at the end of each of the
following sections.
Note: As a rule, the features are
only available to you if they can actu-
ally be executed.
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