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FF8
An Overview of Least Cost Routing
LCR Table
"Special LCR Area
Codes" (page 8-9)
"Special LCR Office
Code Tables" (page 8-
10)
Purpose
Associates four area codes, numbered l-3, with
an unlimited number of office codes, to cause
specific area/office code combinations to be
routed by LCR.
Associates office codes with the four "Special
LCR Area Codes" and with Time Priority Route
Tables.
The Special Area and Special Office code tables are designed for 6 digit LCR
dialing analysis. The Office Code Table is used for all 7-digit dialing. 1+7
digit dialing searches the Area Code Table, or the Special Office Code Tables,
when the "System Location" program address (FFl 2# l# 17#) is configured
with a "1". If this program address is improperly set, the LCR may search
incorrect tables.
Table 8-3.
LCR hzbie
Call Processing
Flow
LCR processes calls according to the following steps:
1. A user dials a number.
2. The number is checked against the LCR tables to determine the Time
Priority Route Table that should be used. (If the number is not in an LCR
Issued 3/l /95
DBS 824-i O-400
8-5
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