System information

System Security and Toll Fraud
xxiv Issue 1 October 1997
To set FRLs on G2 and System 85:
■ Use P010 W3 F23 to assign FRLs for use with AAR/ARS/WCR trunks.
Assign higher FRLs to restricted patterns in P309 than the FRL in the COS
for the voice mail ports.
■ For G2.2, do not use P314 to mark disallowed destinations with a higher
FRL value. P314 W1 assigns a Virtual Nodepoint Identifier (VNI) to the
restricted dial string. P317 W2 maps the VNI to the pattern, and P317 W2
shows the pattern preference, with the FRL in field 4.
For earlier releases, use P313 to enter disallowed destinations in the
Unauthorized Call Control table.
Restrict Toll Areas
For G2 and System 85:
■ Use P311 W2 to establish 6-digit translation tables for foreign NPAs, and
assign up to 10 different routing designators to each foreign NPA (area
code).
■ Use P311 W3 to map restricted and unrestricted exchanges to different
routing designators.
■ If the unrestricted toll exchanges are in the Home NPA, use P311 W1 to
map them to a routing designator.
■ If the Tenant Services feature is used, use P314 W1 to map routing
designators to patterns. If Tenant Services is not used, the pattern number
will be the same as the routing designator number.
■ Use P309 W3 to define the restricted and unrestricted patterns. For G3:
■ Use change ars analysis to display the ARS Analysis screen.
■ Enter the area codes or telephone numbers that you want to allow and
assign an available routing pattern to each of them.
■ Use change routing pattern to give the pattern preference an FRL that is
equal to or lower than the FRL of the voice mail ports.
For G2.2:
■ Use P314 W1 to assign a Virtual Nodepoint Identifier (VNI) to the
unrestricted dial string.
Map the VNI to a routing pattern in P317 W2, and assign a low FRL to the
pattern in P318 W1. If you permit only certain numbers, consider using
Network 3, which contains only those numbers.