System Functions and Features as of I7.9
164 Call routing
syd-0200/3.0 – I7.9 – 11.2009
5. 5. 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 user 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 user.
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