Lucent Technologies MERLIN LEGEND Release 7.0 System Planning Manual page 144

MERLIN LEGEND Communications System Release 7.0
System Planning 555-670-112
3 Lines/Trunks
Selecting Line/Trunk Options
!
c.
8. Form 3a (page 4) identifies programming information for four barrier codes.
If more barrier codes are planned, make the appropriate number of copies
of Form 3a (page 4). A maximum of 16 barrier codes is allowed.
!
For Class-of-Restriction with Barrier Codes on Form 3a (page 4), do the
following for each barrier code:
a.
b.
c.
d.
Proceed to the next section,
SECURITY ALERT:
It is recommended that Outward Restrict be set at all times;
otherwise, toll fraud can occur. If the switch is part of a private
network and restrictions need to be changed from Outward
Restricted, barrier codes should be required.
Under the Disallowed List Access heading, check the box if you plan
to assign disallowed lists.
NOTE:
Instructions for filling in the ARS Restriction Level and
Disallowed List numbers are included in
''Features."
SECURITY ALERT:
Barrier codes of at least 11 digits should be assigned to help prevent
toll fraud.
Write the barrier code number in the space provided, numbering
them sequentially beginning with .
Write the 4- to 11-digit barrier code in the Digits space. The star is
added to the end of the barrier code. For security reasons, you may
want to record the code elsewhere.
For Restriction, check one of the following three boxes:
Unrestricted, Outward Restrict (to keep the factory setting), or Toll
Restrict.
Under the Disallowed List Access headings, check the boxes if you
plan to assign disallowed lists.
NOTE:
Instructions for filling in the ARS Restriction Level and
Disallowed List numbers are included in
''Features."
''DS1 Connectivity (100D
April 1999
Chapter 4,
Chapter 4,
Module)."
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