ascom Ascotel 2025/2045/2065
2.136 Call Routing HBT_20321104_02/B0_en
5.3.2 Digit Barring Facilities
Digit barring facilities are user-definable filters used for regulating exchange
access authorization based on the numbers dialled. Several digit barring facilities
are available in each case for internal and outgoing traffic (internal and external
digit barring facilities).
Difference between Internal and external Digit Barring:
• Internal digit barring filters internal phone numbers:
Numbers that are entered in the internal numbering plan
• External digit barring filters external phone numbers:
Numbers that are sent into the network
Allocating Digit Barring:
• Each subscriber can be allocated internal and external digit barring for all three
switch positions.
• External remote control can be allocated an internal digit barring to restrict the
features that can be remote controlled.
• The lock function on the phone lock variants activates an internal and an exter-
nal digit barring.
• Digit barring facilities cannot be allocated to a PISN subscriber.
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