AT&T MERLIN LEGEND Communications System Key System Planning Forms Errata Instruction Manual download pdf (Page 186)

MERLIN LEGEND Communications System Release 5.0

System Planning

555-650-112

Issue 1

June 1997

Features

Page 4-44System Features

Disallowed Lists 4

This section contains instructions for using Disallowed Lists to prevent people

from making calls to specific numbers, whether or not restrictions are specified for

an extension. You can use this feature instead of restricting telephones totally

from making toll or local calls.

SecurityAlert:

Be sure to review the toll fraud information with regard to Disallowed Lists in

Appendix A, ‘‘

Customer Support Information’’.

Use a “wild card” character to indicate that you want calls to an exchange

restricted in every area code. During system programming, a Pause (entered

using the Hold button) indicates a wild card character; therefore, use the letter “p”

to indicate on the form that a wild card character should be programmed.

You can design up to 8 lists with a maximum of 10 numbers. Each number can

have up to 11 digits, for example, a leading 1 (if a toll-call prefix is required for

dialing) followed by the area code and telephone number. Star codes (such as

*67) may also be included in the list to block users from accessing special

services offered by the Central Office. Once you have designed the lists, decide

which telephones to restrict. You can assign up to eight lists for each telephone.

Disallowed List #7 is the system default list and includes the numbers most

frequently associated with fraud. The table below lists the default entries for

Disallowed List #7.

Table 4-2. Disallowed List #7 Default Entries

NOTE:NOTE:NOTE:

Users cannot dial a number on an Allowed List if it matches a number on a

Disallowed List assigned to the telephone.

1809

1700

1900

976

1ppp976

1 2 ... 181 182 183 184 185 186 187 188 189 190 191 ... 393 394

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AT&T MERLIN LEGEND Communications System Key System Planning Forms Errata Instruction Manual Page 186