System Functions and Features as of I7.9
Call routing 167
syd-0200/3.0 – I7.9 – 11.2009
Examples of digit barring facilities
A user or user group may only dial the following external destinations:
• Destinations within their own network group
• Destinations of network group 031 and 033
• Destinations in Germany (0049)
The following restrictions also apply:
• No external connections through cost centre selection
• No external connections through route selection
These two restrictions are regulated using the internal barred-code; the others, us-
ing the external digit barring:
Fig. 70 Example of digit barring facilities
In this example the exchange access prefixes are entered as follows in the number-
ing plan:
• Exchange access for cost-centre selection: 13
• Exchange access for route selection: 17x
Procedure *78 is used to allocate a cost centre using suffix dialling. That is why the
digit sequence *78 is also barred.
disable all (s)
enable all (f)
disable all (s)
enable all (f)
F1 …… S1 *78
F2 …… S2 13
F3 …… S3 17
F4 …… S4 ……
F5 …… S5 ……
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F1 031 S1 0
F2 033 S2 ……
F3 0049 S3 ……
F4 …… S4 ……
F5 …… S5 ……
External barred-code check Internal barred-code check
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