MERLIN LEGEND Communications System Release 6.0
System Programming
555-660-111 Issue 1
February 1998
Common Administrative Procedures
Page4-351Remote Access Features
4
The systemwide barrier code length can range from a minimum of 4 characters to
a maximum of 11 characters. The default length is 7. If you enter a len gth that is
less than 4 or greater than 11, the entry is erased and the previous entry displays
on the screen. When the barrier code length is changed, all barrier codes are
erased and must be reassigned. If the barrier code length is changed and barrier
codes are not reassigned, users can dial into remote access trunk s and enter a
barrier code, but are denied access into the remote access trunks no matter what
code is entered.
!SECURITY ALERT:

Always use the longest length barrier code allowed on the system.

Barrier codes should consist of a random, non-repetitive, hard-to-guess

sequence of digits.

The time and date of the most recent change made to the systemwide barrier
code length is shown during the system programming procedure as well as on the
Remote Access DISA Information report. The SMDR record for incoming remote
access trunks includes the barrier code IDs established in this procedure.
Use numbers 0 through 9 and the asterisk ( ) to enter the barrier codes. The
codes cannot start with an asterisk and cannot contain two consecutive asterisks.
(The use of two consecutive asterisks is reserved for users to erase an incorrect
barrier code entry.)
See “Remote Access without Barrier Codes” on page –345 to allow or deny use of
system features for each barrier code assigned.
Summary: Remote Access Barrier Codes 4
Programmable by System Manager
Mode All
Idle Condition Not required
Planning Form Form 3a, Incoming Trunks: Remote Access
Factory Setting No barrier codes are established
Valid Entries Not applicable
Inspect No
Copy Option No