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MERLIN LEGEND Communications System Release 6.0
System Manager's Guide 555-660-118
6
Managing the System
Revising Disallowed Lists
Programming Instructions
Console Procedure
PC Procedure
Revising Disallowed Lists
Use this procedure to establish Disallowed Lists that contain telephone numbers
than cannot be dialed from specified telephones (including unrestricted
telephones). A Disallowed List takes precedence over an Allowed List.
Planning Guidelines
Changing Disallowed Lists may affect other features, including Auto Dial,
Automatic Route Selection (ARS), Conference, Forward and Follow Me, personal
lines, Remote Access, and Toll Type. For more information, see the Feature
Reference .
When Disallowed Lists are used in conjunction with Remote Access to restrict
calls made through the system from remote locations, the Disallowed Lists can be
assigned to either a specific barrier code (password) or to specific types of remote
access trunks (for example, all tie/DID trunks).
In Release 3.1 and later systems, star codes may be included in Allowed and
Disallowed Lists. In these systems, dialed star codes are ignored by ARS for
routing calls. Star codes are provided by the central office (CO) to allow the use of
special features (for example, in many areas *70 turns off a call-waiting feature
provided by the central office). In Release 3.0 and earlier systems, the star code
digits were processed as dialed digits by ARS, Allowed Lists, Disallowed Lists,
and calling restrictions. Therefore, the actual called party number was not
properly processed when a star code was entered.
Release 3.1 and later systems permit system managers to include star codes in
Allowed and Disallowed Lists. If a star code is allowed, the digits following the star
code are checked normally by Allowed/Disallowed Lists, calling restrictions, and
ARS.
The MERLIN LEGEND Communications System Release 3.1 and later observes
these Bellcore standards for star codes:
Only 2- or 3-digit star codes are recognized. Two-digit star codes must
begin with 1, 4, 5, 6, 7, 8 or 9. Three-digit star codes must begin with a 2 or
a 3.
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Issue 1
February 1998
Page 6-74
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