An Overview Of Least Cost Routing; Before Programming Lcr - Panasonic DBS-2.3-400 Programming Manual

An Overview of Least Cost Routing

With the Least Cost Routing (LCR) feature, you can program the DBS system
to automatically route outgoing calls to the least expensive carrier.

Before Programming LCR

• Verify the carrier for each CO trunk in the system, and which carriers
• Cut Strap S1 on the CPC card. See Section 300-Installation for
• Enable LCR for the system in FF1 2# 1# 3# (set to "1").
LCR Setup
Use FF8 addresses to set up LCR in the following logical order:
Step 1: Build LCR Trunk Groups
Assign trunks to each group, prioritizing the trunks by assigning them to
positions within the group (trunk in position 1 will be tried first, then trunk in
position 2, etc.). To prevent glare, assign the trunks in descending order by
port number (from highest to lowest -- e.g., trunk port 7 in the first position,
trunk port 6 in the second position, etc.). Maximum 8 trunk groups.
Maximum 8 positions (trunks) per group.
Example: Create three trunk groups -- Trunk Group 1 for trunks that will be
used for local calls; Trunk Group 2 for long-distance trunks; and Trunk
Group 3 for backup trunks.
Step 2: Build Time Priority Route Tables
Assign trunk groups to positions within each Time Priority Route Table,
which has six time-of-day periods (see Table 8-1, next page). These time
periods are fixed and can't be changed. Each time period has eight different
positions for trunk groups. Maximum 15 Time Priority Route Tables.
Example: Create two Time Priority Route Tables -- Table 1 for long-
distance calls; Table 2 for local calls.
Page 8-2
provide the best rates at different times of the day or weekend -- check the
site's phone bills for call history.
instructions.
FF8 6# (TrunkGroup)# (Position)# (Trunk)#
FF8 5# (TableNo.)# (Position)# (TrunkGroup)#
• For Table 1 (long-distance), assign Trunk Group 2 to positions 1,
9, 17, 25, 33 and 41, so that these trunks will be tried first in all
time periods for long-distance calls. In positions 2, 10, 18, 26,
34 and 42, assign Trunk Group 3 (backup).
• For Table 2 (local), assign Trunk Group 1 to positions 1, 9, 17,
25, 33 and 41, so that these trunks will be tried first in all time
periods for local calls. In positions 2, 10, 18, 26, 34 and 42,
assign Trunk Group 3 (backup).
DBS Manual - Revised April 2000 DBS-2.3/9.2-400