Disallowed Lists - AT&T MERLIN LEGEND Key System Planning

Features
See "Remote Access" in Chapter 3.

Disallowed Lists

Another list of emergency numbers could be designed for telephones that are
restricted from local and toll calls. This ensures that telephones restricted from
making outside calls can be used in an emergency.
Note: If you assign a zero as the first digit for any entry in an Allowed List, any
toll restrictions assigned for calls to numbers that can be placed by local or toll
operators are removed.
Planning Form Instructions
On Key System Form 6g, Allowed Lists:
1 .
Write the name of the list in the space next to the list number.
2 . Write the allowed area codes and/or exchanges in the column (a
maximum of 10 entries per list).
3 . Write the extension numbers of the telephones that need access to the list
in the "Allow to Ext. Nos." column. (Refer to Form 2a).
If you planned Remote Access with restrictions, and want to permit Allowed
List numbers to remote access users, locate Key Systems Form 3a, Outside
Lines — Remote Access.
On page 3, "Class of Restriction without Barrier Codes":
4 .
Write the list numbers under the heading "Allowed List Access" (for either
or both tie trunks and non-tie lines).
On all copies of page 4, "Class of Restriction with Barrier Codes":
5 .
Write the list numbers under the heading "Allowed List Access" (for each
barrier code assigned).
Note: Allowed List Class of Restriction assignments apply to all Remote
Access users, and cannot be assigned on an individual basis.
Use Disallowed Lists to prevent people from making calls to specific numbers—
numbers that even unrestricted telephones cannot dial. You can use this feature
instead of restricting telephones totally from making toll or local calls.
For example, to prevent people from calling time and temperature, their
horoscopes, or other services typically offered on the 976 exchange, disallow
calls to that exchange. Or, to prevent employees from calling "talk" lines typically
offered in the 900 area code, disallow calls to that area code.
You can use a "wild card" character to indicate that you want calls to an
exchange restricted in every area code—for example, the 976 exchange in any
state. During system programming, a "pause" (entered using the Hold button)
indicates a wild card character; therefore, use the letter "p" to indicate that a wild
card character should be programmed.
You can design up to eight lists with a maximum of 10 numbers. Each number
can have up to 11 digits—for example, a leading 1 (if a toll prefix is required for
dialing) followed by the area code and telephone number. Once you have
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System Features