Matrix EPABX Vision-206S, Системное руководство

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Matrix
184 Vision System Manual
Toll Control
What’s this?
Toll Control can:
• Restrict dialing all local telephone numbers.
• Restrict dialing certain local telephone numbers.
• Restrict dialing telephone nos. starting with ‘95’.
• Restrict dialing certain areas (area codes 03 and 04).
• Allow dialing only certain telephone number. (2630555).
• Allow dialing only certain area code.
• Allow dialing only those telephone numbers starting with particular digit (1).
How to use it?
• By default, few number strings are available in the allowed list and denied list. If these number strings satisfy
the requirement then these should be assigned to the station for day time and night time.
• If the requirement is not met by default allowed and denied list then customized allowed list and denied list
should be programmed.
• The number strings which are to be allowed should be programmed in allowed list.
• The number strings which are to be denied should be programmed in denied list.
• One such allowed and a denied list should be assigned to each station for day time and night time
individually.
• If customized toll control is to be provided then customized numbers should be programmed in the allowed
list and the denied list. For example, the requirement is that station 21 can make a call to Mumbai (022) but
should not make any other long distance call. In this case, number string 022 should be programmed in one
of the locations of the allowed list and should be assigned to station 21. Similarly, station 21 is not allowed
any long distance call, hence it should be assigned default denied list 4.
• One such allowed and a denied list should also be assigned to the station for the locked condition.
• Once the station has been locked, the station user can make calls as per the allowed and denied lists as
signed to the station for the locked condition.
This is called Dynamic Toll Control.
• Allowed list 0 and Denied list 0 are assigned in locked condition by default.
• Default allowed and denied list for day and night is ‘2’.
How it works?
• Vision uses Allowed Lists and Denied Lists to support this feature.
• When a call is made, the Vision compares each digit of the dialed number string with the number strings in
allowed list and denied list.
• If the dialed number string matches with any of the number strings available in allowed list, the Vision dials
the number on the trunk, else compares with the number strings in the denied list.
• If the dialed number string matches with any of the number strings available in denied list, the Vision restricts
dialing the number and gives error tone to the station user.
• If the dialed number matches with a number string that is available in both allowed and denied list then
allowed list is given priority and the dialed number is dialed on the trunk.
The following flow chart explains the logic of Toll Control Group.