Lucent Technologies MERLIN LEGEND 6 - Manual (Page 190)

MERLIN LEGEND Communications System Release 6.0
System Manager’s Guide
555-660-118
Issue 1
February 1998
Features and Applications
Page 4-58 Features
4
Remote Access 4
The Remote Access feature allows someone outside the system to call in and use
the system as if he or she were on the system. You can and should see that a
barrier code is programmed for each remote access user, who enters that code as
a password for access to the system. Your Lucent Technologies representative
can help you plan these barrier codes as needed and help you designate an
outside trunk for use by people calling in for remote access to the system.
Remote access requires that you have a certain number of touch-tone receivers
(TTRs) to interpret the digits entered by remote access users, who must use
touch-tone telephones. These TTRs are supplied on the control unit modules. The
number required depends upon the call volume you anticipate, the applications
you use, whether or not you are networking using tie trunks (Release 6.0 and later
systems, Hybrid/PBX mode), and the features that you use. See
Table 3–1 on
page 3-12 , for information about modules providing TTRs and discuss your needs
with your Lucent Technologies representative.
Calling restrictions can and should be associated with each barrier code, so that
remote access users cannot make unauthorized calls. In a Hybrid/PBX system,
an Automatic Route Selection (ARS) Facility Restriction Level (FRL) can ensure
that remote access users are restricted just like other system users.
In Release 3.1 and later systems, the default FRL assignment for a barrier code is
0, restricting all outside calls.
Take these additional measures to enhance system security:
■ Change remote access barrier codes frequently. This helps prevent toll
fraud when someone has revealed his or her barrier code to others.
■ Delete unused barrier codes immediately.
■ Always use the longest possible barrier codes.
System Programming includes instructions for adding, deleting, and changing
barrier codes.
Account Codes 4
If your company requires that telephone costs be associated with specific
projects, departments, or clients, you should take advantage of the Account Code
Entry and Forced Account Code Entry features of the system. Call Accounting
Systems, described in
“Applications” on page 4–60 , are applications that enhance
these functions. See System Programming for information about programming
account codes, and distribute these account codes to people who need them.
Dialing features (see
“Dialing Features” on page 4–52 ) may be used to help
automate Account Code Entry.