Configurations
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64
Call bar groups
The three following programming steps are required when programming call bar groups:
1.
Call number entry
In the call bar group memory spaces, enter the first digits (max. 6) of the call
number to be monitored (see “Entering dial digits in the call bar”).
2.
Assigning subscribers to the call bar groups
You must assign the subscribers, whose external dialling is to be monitored by the
call bar group, to the desired call bar groups (see “Programming the assignment of
subscribers to call bar groups”). A subscriber can be assigned to several or even all
call bar groups.
3.
Assigning exchange lines to the call bar groups
You can specify which exchange lines are to be evaluated by the call bar groups.
This means specific exchange lines can be removed from the call bar
Evaluating call numbers in call bar groups
The following example shows you how the system evaluates the entered numbers.
The dialled call numbers are monitored digit by digit by the call bar starting at the beginning. If
dialling of a barred number is detected, the seized dialup line is re-released and the subscriber
hears the “busy” signal
A precondition for these examples is that the subscriber (e.g. sub.
11
) and the exchange line which
it can access is assigned to call bar group
1
.
Example 1:
Subscriber 11 is to be set up so that he
•
can only make calls within his local area code
For this example, program call bar group
1
as follows:
Call bar group
Memory area
Call number
1
01
0
The "
0
" entered in memory area 01 means:
•
All call numbers who sub. 11 dials and which begin with "0" are barred. These are
call numbers outside your own local area code and of course all foreign numbers.
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