Strata DK Programming 5/00 5-1
Least Cost Routing
Least Cost Routing 5
The following provides you an overview of the Least Cost Routing (LCR) feature and step-by-step
instructions to fill in the Least Cost Routing System record sheets. The quantities of LCR plans,
CO line groups, etc. vary between processors. This chapter and the LCR record sheets note these
differences when they exist.
LCR enables the system to automatically route each outgoing voice call over common carriers and
selected lines. The customer chooses these lines for the specific time of day, and for system users
with varying priorities. If the system is programmed properly, LCR can select the most economical
route. If the best routes are unavailable, users with priority can access more expensive outgoing
routes. Several elements of LCR must be defined in programming.
For LCR to function properly:
♦ line groups must be created in Program 16;
♦ line restrictions must be set in Programs 40 and 41; and
♦ the area dialing plan must be assigned in Program 45-1.
LCR Features
Parameters
Enables LCR features, including a warning tone for last choice route number, a comfort dial tone
during LCR processing, and the Long Distance Information dialing plan.
Home Area Code
Notifies LCR software of the area code of the installation site.
Special Codes
Notifies LCR of special emergency and operator codes that will be automatically routed as a local
call, without unnecessary delay.
Long Distance Information Plan Number
Notifies LCR software how to route a long distance information call.
Local Call Plan Number
Notifies LCR software which call routing plan is designed to handle local and special calls.