Instruction manual

MERLIN LEGEND/MAGIX toll fraud
Issue 9 May 2003
6-49
DS1 – T1 and/or PRI.
■ WATTS: Customers may restrict 011 and 809 (the Dominican Republic)
dialing if they have no need to call overseas or the 809 area code. See
Disallow List Information.
■ ISDN – PRI: The way toll restrictions can be bypassed are limited on
lines/trunks.
011 Restrictions (International).
■ Make ARS table for 011.
■ If 011 is not needed, make the FRL on 011 table 4 or greater and
change FRL on extensions which need access to 011 the same.
■ If 011 is needed, make the FRL on 011 table 4 or greater and
change FRL on extensions requiring access to 011 the same.
■ Make disallow list for 011.
■ Make disallow list.
■ Assign all ports not needing access to 011 (including MFM’s and
default locations, etc) to disallow list.
■ See “Toll Fraud Investigation: Disallow List Information,” page 6-40 if
specific countries or areas need to be restricted.
Caribbean Islands restrictions (or any other “hot spot” geographic area) See
www.nanpa.com (North American Numbering Plan Administration) or
www.att.com/traveler/tools/codes.html (international country codes) for area code
and geographic break downs.
Ex: 809 = Dominican Republic 441 = Bermuda 473 = Granada
787 = Puerto Rico. 268 = Antigua 345= Caiman Islands
242 = Bahamas 758 = St. Lucia
246 = Barbados 340 = Virgin Islands
■ Make a table for an affected area code (ex: 809, 787, etc.) and make FRL
on extensions requiring access to these area codes, the same.
■ Make disallow list for affected area codes (ex: 011809, 011787, etc.)
Assign ALL extensions not requiring access to affected area code (ex:
011809, 011787, etc.) to disallow list (include MFM’s, unused extensions,
and default extensions etc.)
■ FRL should be set to secure toll fraud through ARS.