Other Security Hints - Lucent Technologies MERLIN LEGEND Release 6.1 Maintenance And Troubleshooting Manual

MERLIN LEGEND Communications System Release 6.1
Maintenance and Troubleshooting 555-661-140

Other Security Hints

It is strongly recommended that customers invest in security adjuncts,
which typically use one-time passcode algorithms. These security
adjuncts discourage hackers. Since a secure use of the Remote Access
feature generally offers savings over credit-card calling, the break-even
period can make the investment in security adjuncts worthwhile.
If a customer chooses to use the Remote Access feature without a
security adjunct, then multiple barrier codes should be employed, with
one per user if the system permits. The MERLIN LEGEND system
permits a maximum of 16 barrier codes.
The maximum length should be used for each barrier code, and should
be changed periodically. Barrier codes, like passwords, should consist
of a random, hard-to-guess sequence of digits. While MERLIN LEGEND
Release 3.0 permits a barrier code of up to 11 digits, systems prior to
Release 3.0 permit barrier codes of up to only four digits.
If Remote Access is used, an upgrade to MERLIN LEGEND Communications
System Release 3.0 is encouraged to take advantage of the longer barrier
code.
Other Security Hints
Make sure that the Automated Attendant Selector Codes do not permit outside
line selection.
Multiple layers of security are always recommended to keep your system
secure.
Following are a number of measures and guidelines that can help you ensure
the security of your communications system and voice messaging system.
Issue 1
August 1998
Page A-20