AT&T MLS-6TM Marine Radio User Manual


 
The entries for toll calls differ,
depending on the Toll Call Prefix
(#402). Make sure the Toll Call
Prefix is set correctly for your
dialing area. If it is not, entries
on the Disallowed and Allowed
Phone Number Lists may not be
handled correctly.
Programming Notes:
To program telephone numbers, dial the number as you
would normally. You can also use the "wildcard” character to stand for any digit
in a phone number. For example, if you want to prevent users from making calls
to area codes 202 and 212, you could enter each area code separately or com-
bine them in one entry using the wildcard to stand for the middle digit. Using
the wildcard, you would press [ 2 ] [ Wild ] [ 2 ] . The wildcard character appears as
a “!” on the display: 2 ! 2
When you use the wildcard, be sure that you do not inadvertently prevent a call
that should be allowed. In the example above, if we do not include a toll prefix
(1 or 0), this entry would prevent calls to exchanges 222, 232, 242, 252, 262,
272, 282, and 292 as well as area codes 202 and 212, since the wildcard
matches any digit. The examples below include normally-dialed numbers and
wildcards.
Specific Telephone Numbers.
Dial the telephone number directly, followed
by [ Enter
] . For example, to prevent calls to local directory assistance, press
[ 4 ] [ 1 ] [ 1] [ Enter ]..
All Telephone Numbers in One Area Code.
The following lists use 900
“chat” numbers as an example of preventing calls to an area code.
List 1 (Toll Call Prefix required)
1900
Prevents direct-dial calls to area code 900
0900
Prevents operator-assisted calls to area code 900
List 2 (Toll Call Prefix not required)
900
Prevents all ca!ls to area code 900
All Telephone Numbers in One Exchange.
The following lists use “976” as
an example of preventing all local and long distance calls to an exchange.
List 1 (Toll)
976
1!0!976
1!1!976
0!0!976
0!1!976
1976
0976
Call Prefix required)
Prevents local calls
Prevents direct-dial calls to area codes with “0” as the second digit
Prevents direct-dial calls to area codes with “1” as the second digit
Prevents operator-assisted calls to area codes with “0” as the
second digit
Prevents operator-assisted calls to area codes with “1” as the
second digit
Prevents direct-dial in-state calls (needed only when 0 or 1 is
required for in-state toll tails)
Prevents operator-assisted in-state calls (needed only when 0 or 1
is required for in-state toll calls)
List 2 (Toll Call Prefix not required)
976
Prevents local calls
!0!976
Prevents calls to area codes with “0” as the second digit, such as
203
!1!976
Prevents calls to area codes with the “1” as the second digit, such
as 212
International Long Distance.
To prevent international calls, enter the inter-
national prefix numbers, [ 0 ] [ 1 ] [ 1 ] Enter ].
System Programming 3-21