1. Each extension has maximum of two outgoing class, both of classes should
be in restricted prefix digits group 1 to 6 (G = 1 to 6) or in licence prefix
digits group 7 to 9 (G = 7 to 9). It is not allowed to assign first class is in
group 1 ~ 6, and second class is in 7 ~ 9.
2. Assign both of classes in group 1 ~ 6, the CO line numbers that with these
prefix digits are restricted to dial.
3. Assign both of classes in group 7~9, only allowed to dial the CO line
numbers that with these prefix digits.
Example: Prefix digit 0, 168 and 13 in restrict group 2.
Prefix digit 9500 and 193 in restrict group 3.
Prefix digit 0757, 020 and 010 in licence group 7.
Prefix digit 133 and 130 in licence group 8.
Related Feature Reference
Have various combinations accord to necessary as following:
a. First class of Ext.A is class 2 (M=2),second class has not been assigned.
Thus, Ext.A is restrict to dial the numbers with prefix digit 0, 168 and 13.
b. First class of Ext B is class 2 ( M=2),second class is class 3.
Thus, Ext.B is restrict to dial numbers with prefix digit 0,168,13,9500,193.
c. First class of Ext C is 7, second class has not been assigned.
Thus, Ext.C is permit to dial numbers with prefix digit 0757,020,010 only.
d. First class of Extension D is 7, second class is 8.
Thus,Ext D is permit to dial the numbers with prefix digit0757,020,010,
133 and 130 only.
Section 2 System Programming
Format:
* 7 000 #
Description: Restore all extension numbers to default extension number.
2.48 Restore All Extension Numbers To Default
The default extension number is 8001 ~ 8128.
2.49 Clear All Extension Numbers
Format
* 71 00 #
Description: To clear all extension numbers before to change the most of extension
numbers to avoid reduplicate number. This format will clear default
extension numbers also. You can assign extension number according
to item 2.52 after clear all extension numbers.
* Suggest to assign two digits extension number for the regular use or
important extension.
* Assign extension number according to the floor, building or room number.
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