Specifications
Disallowed Phone Number Lists (#404)
Description
This System Programming procedure specifies telephone numbers that users
cannot dial. For example, you may want to prevent calls to a specific telephone
number or to categories of numbers, such as international numbers. Use this
procedure to create up to four lists of up to 10 telephone numbers each.
Related Features
■ After completing this procedure, you must use Disallowed List
Assignments (#405) to assign the Disallowed Phone Number Lists to
specific extensions.
■ Allowed Phone Numbers, Emergency Phone Numbers, and Marked
System Speed Dial Numbers override the Disallowed List.
■ The entries you must make to permit or restrict toll calls differ depending on
the setting for Toll Call Prefix (#402). This setting tells the system whether a
“0” (for operator-assisted calls) or “1” (for direct-dial calls) is required when
you make toll calls.
Considerations
■ Each list entry can include up to 12 digits. You can use the wildcard
character (by pressing the [
Hold ] button on a system phone) to match any
single digit (it appears as "!" on the telephone display).
■ When a user dials a number that is on a Disallowed List for the user’s
extension, the user hears a reorder tone (fast busy signal) after dialing the
part of the number that is stored in the list (for example, an area code).
■ If you want to go to another programming procedure when entering phone
numbers in a list, you must use [
Next Procedure
] or [
Prev Procedure
] to do so since
entering [ # ] and a three-digit code will be considered data for the telephone
number.
Valid Entries
Up to 12 digits including 0–9, [
#
], [
★
], and [
Hold
] (any single digit)
Examples
The examples below show how to enter telephone numbers for a Disallowed
Phone Number List in Step 4 of “Programming.”
■ Specific Telephone Numbers. Enter the phone number exactly as you
would dial it. For example, to prevent calls to the local number 555-5678,
press [
5
] [
5
] [
5
] [
5
] [
6
] [
7
] [
8
].
■ All Telephone Numbers in One Area Code. The following list entries
prevent calls to the 900 area code:
-
Toll Call Prefix required
1900 and 0900
-
Toll Call Prefix not required
900 and 0900
Disallowed Phone Number Lists (#404) 5-41