Services
Least Cost Routing/Destination Restriction
9-6 Strata CTX Programming - Part 2: CTX WinAdmin Programming 04/03
Least Cost Routing/Destination Restriction
The programs that follow control Strata CTX’s Least Cost Routing (LCR) and Destination Restriction
(DR) capabilities.
LCR/DR Overview
Programming LCR/DR features in Strata CTX requires an advanced knowledge of telephone
programming. Make sure you have a thorough understanding of the discussion that follows before
attempting to program these features. For details on DR, see “DR Overview” on page 9-15
LCR Analysis Process
The flowchart below represents the process by which Strata CTX analyzes dialed digits and makes LCR
decisions. The graphic is divided into four areas each described below. DR and call connection are
described elsewhere in this document and are shown here only for their roles in the LCR process.
Figure 9-1 LCR Analysis Process Flow
DESTINATION RESTRICTION (DR)
CONNECTION
TIME OF DAY
ROUTE ANALYSIS
LCR
Receive
dialed digits
Home
area code
included?
Allow
LCR DR?
Insert home
area code
Stop
Select Routing
Analysis Plan
(1~64)
Dial string
match?
Use Default
Route Plan
Exception
Table?
Get Route
Plan from
Analysis Table
Get Route Plan
from Exception
Ta bl e
Route Plan
Schedule
Table
Stop
Check FRL
(1~16)
Time of
Day
Zone 1 Zone 2
Zone 3
Type of
Day
Weekday
Weekend
Holiday
Make LCR
Route Choice
Hunt available
Route
Definition
(1~6)
Apply Digit
Modification
Connect
and
send
No
Yes
No
Yes
No
Yes
No
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