AT&T Partner II - Manual (Page 65)

NOTE:
While procedures that restrict dialing are very effective, absolute protection
against misuse cannot be guaranteed. MLS- and MLC-model phones give more
protection than standard phones. Therefore, we strongly recommend that you
install MLS- and MLC-model phones where restricting phone use is important.
When an extension is allowed access to a Centrex line, you can use the
following procedures to control calling for all lines to which the extension has
access:
■ Outgoing Call Restriction (#401) provides the following choices:
■ No restriction allows outside calls to long distance and local numbers,
and inside calls.
Local only allows outside calls to local numbers, and inside calls ■
(make sure the Toll Call Prefix is set properly, using procedure #402).
■ Inside only allows inside calls only.
Disallowed Phone Number Lists (#404) creates lists of numbers that ■
cannot be dialed. The numbers on a Disallowed List can be entire
telephone numbers, or numbers of a certain type (such as all numbers in
a particular area code). You can store as many as four different lists of up
to 10 numbers each. For information on entering telephone numbers into
lists, see “Entering Telephone Numbers into Lists” on page 4-18. (For
programming information, see page 5-12.)
After you create the Disallowed Lists, use the Disallowed List
Assignments (#405) procedure to assign one or more of the lists to a
specific extension.
Night Service (with a System Password defined) restricts calling on ■
Centrex lines by all extensions in the Night Service Group. Night Service
(with or without a password) also causes after-hours calls to ring
immediately at the extensions in the equipment Night Service Group,
regardless of Line Ringing during normal day operation. See page 4-13
for details on Night Service.
Overriding Dialing Restrictions
The following programming procedures provide ways to override all equipment
dialing restrictions, except those imposed by Line Access Restriction (the
extension must have access to a Centrex line):
Emergency Phone Number List (#406) defines a list of up to ten ■
numbers that can be dialed from any extension in the system. A typical
Emergency number is 911. For information on entering telephone
numbers into lists, see “Entering Telephone Numbers into Lists” on page
4-18. (For programming information, see page 5-12.)
NOTE:
A variety of factors influence the effectiveness of dialing restrictions. Avoid
putting 800 numbers in your Emergency List. If you need to allow restricted
users to dial 800 numbers, put those numbers in an Allowed Phone Number List
(see page 4-18).
Customizing Your System 4-17