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Toll Restriction
Description
Each Allow Table contains 20 bin numbers. Each bin number may be up
to 8 digits, including Do Not Care digits and Search Special Table
commands. Entries into the Allow Table represent exceptions to numbers
or codes that are to be allowed only if they would otherwise be restricted
by an entry in the Deny Table.
Example
If [1 555 1212] is allowed but [1+] numbers are denied, by an entry into
the Deny Table, [1 555 1212] is entered into the Allow Table as an allowed
number.
Allow Table A is referenced and searched first (before Deny Table A)
when Station COS is 2 and CO Line COS is either 1 or 2.
Allow Table B is referenced and looked at first (before Deny Table B)
when Station COS is 3 and CO Line COS is either 1 or 3.
When Station COS is 4 and CO Line COS is 1 both allow tables are
looked at first (Allow Table A first, then Allow Table B) then both deny
tables (Deny Table A first, then Deny Table B).
Do Not Care digits specify that the system should consider any digit
dialed in that position as a match. Do Not Care digits should not be
entered as the last digit in an entry, as this would be an unnecessary
or meaningless command.
Search Special Table commands must be entered in a specific
manner and should always be the last entries in the Allow Table. It is
recommended that the last four bins (17–20) in the Allow Table be
reserved for referencing the four special tables with the reference to
the home area code (Special Table 4) always being located in bin
number 20. Search Special table commands can only be entered into
the allow tables.
Remember to enable 911 for all Classes of Service
9-11
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