May 2003
Programming Manual
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6
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02 – Release 6.0
May 20
03
S
ECTION
6
C
ODE
R
ESTRICTION
6.1
General
The Xen systems provide an advanced method of restricting outgoing calls based
on the first eight digits dialled. Code Restriction denies placement of outside calls
based on Trunk groups and accommodates equal access to other common carriers
(OCC). This eliminates unauthorized calls and configures system calling functions
to provide cost control.
System Programming has 16 Code Restrictions Classes. Class 00 is fixed and
allows free dialling. Class 15 is fixed and denies all outside calls. Classes 01~14
are programmable in system software. Stations are assigned per station to a Code
Restriction Class. A separate Day Mode and Night Mode station to Code
Restriction Class assignment is available.
6.2
Default Assignments
At default, all stations are assigned to Code Restriction Class 00 for both Day and
Night Mode to allow free dialling.
At default, the Code Restriction Classes are set up with the following restrictions to
provide the most common Code Restriction requirements and simplify Code
Restriction programming.
Note:
Refer to Section 6.5 Code Restriction Tables (Default Values) on page
-434.
Class
Deny
Allow
Class 01:
0 and 1 + calls
Class 02:
0 and 1 + calls
1-800, 888, 877 calls
Class 03:
0, 1 +, and 976 calls
1-800, 888, 877 calls
Class 04:
1 + calls
1-800, 888, 877 calls
Class 05~14
911 calls only
At default:
•
All OCC calls are denied for Code Restriction Classes 01~14
•
System Speed Dial buffers override Code Restriction Classes 01~14
•
Code Restriction is not applied to Tie lines
•
When Station Lockout is set at a station, the station is outgoing restricted
•
Digit Restriction is not assigned
