BT Micro Owner’s Manual
178
To assign a name to an extension
From the Programming Extension, press the PROGRAMME
Key
Press the Scroll Down Key () until ‘System programming’ is
displayed.
Select ‘System programming’.
Enter the System Programming Password and select
‘Extensions’.
Select ‘Name programming’.
From the Extension Menu, select the extension you want to
name and enter the name as described on page 42. Up to ten
characters (including spaces) can be entered for each name.
When the name is entered, select ’Confirm’. You will be
presented with the Extension Menu and can continue
programming other names.
Press the Hands-free Key to finish programming.
Class of Service
Each extension may be programmed for a Class of Service.
This determines the type of call the extension is allowed to dial.
Four tables, which can be programmed with up to fifty codes,
are used to implement six Classes of Service:
By default, all extensions are in Class 1, that is, they have no
restriction placed on them.
An extension placed in Class 2 is restricted from dialling the
codes programmed in Table 2. (Table 2 would typically be
programmed with the international access code 00).
An extension placed in Class 3 is restricted from dialling the
codes programmed in Tables 2 and 3. (Table 3 would typically
be programmed with non-local national access codes).
An extension placed in Class 4 is restricted to internal and
emergency, (999 and 112), calls only.
An extension can be placed in Class 5 in addition to being in
Class 2 or 3. In this case the codes programmed in Table 5 are
allowed.
An extension can be placed in Class 6 in addition to being in
Class 1, 2 or 3. In this case the codes programmed in Table 6
are restricted.
The following table shows the types of restriction for the
different Classes of Service available:
Type of restriction Table Class
No restriction - 1
Restrict codes in Table 2 Table 2 2
Restrict codes in Table 2 and 3 Table 3 3
Internal and emergency calls only - 4
Allowed codes that can be combined with Class 2
or 3
Table 5 5
Restricted codes that can be combined Class 1, 2
or 3
Table 6 6
The emergency codes are 999 and 112. They cannot be
barred.
Both Classes 5 and 6 can be associated with the same
extension.
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