Lucent Technologies MERLIN LEGEND Release 7.0, Руководство по системному программированию, Страница: 719 / 1082

MERLIN LEGEND Communications System Release 7.0
System Programming
555-670-111
Issue 1
April 1999
Programming Procedures
3-517 Remote Access Features
3
Remote Access Features 3
This section covers the following Remote Access features:
■
Remote Access over Networked Tandem and Tie Trunks (Release 6.0 and
later systems only)
■
Remote Access Trunk Assignment
■
Remote Access Automatic Callback
■
Remote Access without Barrier Codes
■
Remote Access Barrier Codes
■
Remote Access with Barrier Codes
!
SECURITY ALERT:
As a customer of a new communications system, you should be aware that
telephone fraud has become an increasingly prevalent problem. It can occur
in many forms, despite the numerous efforts of telephone companies and
telephone equipment manufacturers to control it. Some individuals use
electronic devices to prevent or falsify records of these calls. Others charge
calls to someone else’s number by illegally using lost or stolen calling cards,
billing innocent parties, clipping on to someone else’s line, or breaking into
someone else’s telephone equipment physically or electronically. In certain
instances, unauthorized individuals make connections to the public
switched network through the use of remote access features.
The Remote Access feature of your system, if you choose to use it, permits
off-premises callers to access the system from a remote telephone by using
an 800 number or a 7- or 10-digit telephone number. The system returns an
acknowledgment signaling the user to key in his or her barrier code, which
is selected and programmed by the system manager. After the barrier code
is accepted, the system returns dial tone to the user. If you do not program
specific restrictions, the user will be able to place any call normally dialed
from a telephone associated with the system. Such an off-premises network
call is originated at and will be billed from the system location.
The Remote Access feature helps the customer, through proper
administration, to minimize the ability of unauthorized persons to gain
access to the network. Most commonly, telephone numbers and codes are
compromised when overheard in a public location, through theft of a wallet
or purse containing access information, or through carelessness (writing
codes on a piece of paper and improperly discarding it). Additionally,
hackers may use a computer to dial an access code and then publish the
information to other hackers. Enormous charges can be run up quickly. It is
the customer’s responsibility to take the appropriate steps to properly