Cisco CallManager Least Cost Routing

Contributed by abanks September 22, 2004  
Tagged: Cisco call manager

Less painful Least Cost Routing Configuration for Cisco CallManager.

In a simple two-site CCM setup, site A and site B have partitions for IP Phones, partitions for 911, local, and long distance calling. in this scenario, each site has a PSTN gateway.

Create a Least Cost Routing (LCR) partition, add local NPX/NXX route patterns to this new partition for both Site A and Site B.

Add the LCR partiton to the appropriate calling search spaces (CSS) to allow phones to least-cost route between gateways.