Creating And Customizing Amis Open Networking Rpls; Customizing Rpls; Nortel Callpilot; Administrator Guide - Nortel CallPilot Administrator's Manual

118 Chapter 7 Security recommendations

Creating and customizing AMIS Open Networking RPLs

If the CallPilot system has AMIS Open Networking installed, mailbox
owners can compose and send messages to mailboxes on other messaging
systems on the open (public) network. This openness allows hackers
established on your messaging systems to charge their costs to your system.
To prevent unwanted charges without unnecessary restriction
of legitimate chargeable calls:
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Customizing RPLs

Customizing RPLs allows you to secure the system while thru-dial features
are used. You can restrict calls by international code, area code, or local
exchange code by overlapping restriction and permission codes in the
same RPL.
When you modify an RPL, the modifications automatically apply to all features
to which the RPL is assigned.
Example of overlapping restriction and permission codes in an
RPL
A long distance RPL must
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Copyright © 2007, Nortel Networks
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Use CallPilot Manager Advanced Search to list the mailbox classes to
allow mailbox class owners to send messages over the public network.
Determine which mailbox classes, if any, should permit mailbox owners
to send messages to an international long distance number, with no
special restriction. Ensure that the long distance 2 RPL is customized
appropriately.
Of the remaining mailbox classes, determine which should permit
mailbox owners to send messages to a domestic long distance number,
with no special restriction. Ensure that the long distance 1 RPL is
customized appropriately.
Of the remaining mailbox classes, determine which should permit
mailbox owners to send messages to a local off-switch number,
with no special restriction. Ensure that the local RPL is customized
appropriately.
If there are any mailbox classes left, determine if there are any which
should permit mailbox class members to send messages to an off-switch
number of any kind.
— If so, list each special restrictions required and create one or more
RPLs that block only the restricted calls.
prevent mailbox owners from dialing out to a 900 area code

Nortel CallPilot

Administrator Guide

NN44200-601 01.11 Standard

5.0 9 November 2007
ATTENTION