MERLIN LEGEND Communications System Release 5.0
Feature Reference
555-650-110
Issue 1
June 1997
Features
Page 36
Allowed/Disallowed Lists
■
3-digit codes:
*
(200–399)
Restrictions are reset after leading star codes. This means that any star codes
that are not included in an Allowed or Disallowed List are not considered. The
digits that follow the star code are then compared again to the lists. If a caller dials
*67280
, the Allowed/Disallowed List feature acts as though
280
were dialed. In
this case, star codes do not need to be placed into an Allowed or Disallowed List
to restrict calls to specific exchanges or area codes.
The programmed delay is also activated when the rotary telephone equivalent of a
star code is dialed (for example,
1170
). Multiple leading star codes (such as
*67*70
) are also handled by the system because the dialed number is checked
against Allowed and Disallowed Lists after each star code is detected.
Following are examples of how to set table entries to achieve specific results:
■
Disallow calls preceded by
*67
, but allow all other calls: Enter
*67
as a
Disallowed List entry.
■
Disallow calls preceded by all star codes, but allow all other calls: Enter
*
as a Disallowed List entry.
■
Disallow calls preceded by
*67
or
*69
,
but allow all other calls: Enter
*67
as a Disallowed List entry, and enter
*69
as a separate entry.
■
Disallow calls preceded by
*67
, calls to 900 numbers and 411, but allow all
other calls: Enter
*67
,
900
, and
411
as separate Disallowed List entries.
Following are examples of specific results that cannot be achieved through
programming the system:
■
Disallow
*67
when dialing a specific exchange.
■
Disallow
*67
only when it is followed by
*69
.
Default Disallowed Lists
0
In Release 3.1 and later systems, the system is factory-set with a default
Disallowed List (List 7), which includes the following entries: 0, 10, 11, 1809,
1700, 1900, 976, 1
ppp
976, *, (
p
=any digit). This list is automatically assigned to
any port programmed as a VMI port.
SECURITY
l
ALERT:
!
The system manager should assign this list to any extension that does not
need access to the numbers in the list.
Disallowed Lists and VMI Ports
0
In Release 3.1 and later systems, ports assigned as Generic VMI or Integrated
VMI are assigned the default Disallowed List.