AT&T MERLIN LEGEND Release 3.1 System Programming Manual page 645

Remote Access Features
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 with Barrier Codes: Class of Restriction" to allow or deny
use of system features for each barrier code assigned.
Summary: Remote Access Barrier Codes
Programmable by
Mode
Idle Condition
Planning Form
Factory Setting
Valid Entries
Inspect
Copy Option
Console Procedure To establish or remove code requirements:
PC Procedure
System manager
All
Not required
Form 3a, Incoming Trunks: Remote Access
No barrier codes are established
Not applicable
No
No
Specify whether barrier codes are required
To change barrier code length:
Drop
To change barrier code:
Dial code ID
To establish or remove code requirements:
or
codes are required
To change barrier code length:
To change barrier code:
2
+ Dial code length
or
Dial code length
Drop
Specify whether barrier
2
+ Type code length
Type Code ID
Programming Procedures
Dial code
4–273