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Least Cost Routing
Program 50-2 – LCR Home Area Code
Strata DK Programming 5/00 5-13
Least Cost Routing
Program 52 Overview
This Office Code exception table enables the user the flexibility of routing specific office codes
through a different call plan than other office codes used with that area code.
♦ Any number of exception code tables can be assigned to each route plan, although each
exception table can only be used once system-wide.
♦ Every route plan can be assigned to define a set of area codes and office code exceptions or a
set of office code exceptions.
♦ This program applies to both examples listed below. In the first case, an office code exception
table does not need to be defined in addition to the area codes in Program 51, but it may. In the
second case, the plan only pertains to exception office codes for certain area codes.
♦ To route International (011) calls over any selected plan by Country Code, program 011 as the
Area Code and the Country Code as the Office Code in Program 52 in any Exception Code
Table. If the Country Code is two digits, add 10, 3-digit Office Codes as follows: XX0 through
XX9, where XX is the Country Code.
Example 1
In the first example, office code exception tables are defined to the area code table. Use the
continuation sheet to define the exception office codes. As many as 16 office code exception tables
can be linked to a plan, but each exception table can only be used once. When using the
continuation sheet, be sure that the same exception table is not assigned to more than one plan.
1. Turn to the continuation sheet (that follows Plan 16 record sheet).
2. Determine the plan number where the exception office codes will be routed.
3. Fill in the area code of the exception office codes in the spaces provided by the correct plan
number. These office codes will be routed differently than the overall area code.
4. Enter the specific office codes that are to be routed differently.
Example 2
In the second example, the route plan only applies to office code exceptions. The first office code
exception table may be documented on the LCR Plan record sheet:
1. Check the box on the record sheet next to Office Code Exception Table number.
2. Enter the number of the exception table (01~16). Make sure this table number is not entered on
any other plan, or on the continuation sheet.
3. Enter the applicable area code.
4. Enter the specific office codes that are to be routed differently than the area code.