Xblue Networks 45P, Инструкция по установке и обслуживанию

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6.5Restriction
Call Restriction
This chapter defines each of the parameters of the Restriction data category, and lists the
factory setting and other possible settings that can be selected
During Display Menu programming scroll through the menu options until you are at pro-
gram “
Restriction
”. To enter the Restriction Programming area press the “
show
” key.
Line Call Discrimination
Line Call Discrimination refers to the ability of an extension user to place certain calls on
CO Lines. The guidelines defined in these parameters can be applied to an extension by
means of its Class Of Service. Allowed dialing is input in ranges. In its simplest form an
extension can be allowed to dial any number beginning with a digit from 0 to 9. In the
same way an extension can be restricted to dialing only numbers beginning with digits 2
through 9.
There are 100 table entries that can be set up in ranges called “
Intervals
”. Each Interval
provides for digits in the “
From
” and “
To
” parameters. Intervals are programmed with the
digit sequences that are to be allowed at the extensions with the associated Class Of Ser-
vice. Given this brief example, if an extension is to be limited to calls that do not begin with
0 or 1, the table Interval entry would be From 2, To 9. Each Interval “
From
” parameter and
“
To
” parameter has the capacity for up to 10 digits. In the example below extensions with
Class Of Service “4” can dial telephone numbers beginning with “50” and “51” but are not
able to dial telephone numbers beginning with “52”~”58”.
Intervals are assigned to Classes Of Service for extensions and CO Lines. Therefore an
extension that is allowed to dial a telephone number on one CO Line may not be able to
dial that same number on a different CO Line. Class Of Service settings are applied in both
the Day and Night Service Modes. Therefore dialing characteristics can be different for
Extensions and CO Lines based on the time of day and operating mode of the system.