Example Of Least Cost Routing - Polycom ReadiManagerLX100 Administrator's Manual

Polycom ReadiManager LX100 Scheduling Administrator's Guide

Example of Least Cost Routing

LCR Tables for Three Campuses
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Company ABC has a main campus (Campus Two in San Jose) in the Silicon Valley, a
small campus in Monterey, CA (Campus Three) and Campus One in Washington DC.
All campuses have gateways.
Figure 9-3. Company ABC Network Topology
The tables below show the LCR tables for each of these campuses shown in
Figure 9-3. These tables were set up with area codes that are used frequently in each
geographical area. In addition, consideration was given to the fact that calls are made
frequently from Campus One in Washington DC to Southern California.
Table 9-2 shows area codes for the California Bay Area and some area codes in
Southern California. The prefix 755 for the 408 area code represents the prefix for all
numbers inside the main campus.
Table 9-2. LCR table for Campus Two in San Jose (main campus network)
Country Code Area Code
1 408
1 408
1 650
1 510
1 925
1 415
1 831
1 213
1 310
Weighted
Prefix cost
755 0
0
0
0
0
5
5
10
10
Using Least Cost Routing