This chapter covers the following topics:
Identifying the necessary elements for creating external route plans in Cisco CallManager, including gateways and trunks, route groups, route lists, and route patterns
Explaining how route groups are used to prioritize and group gateways to send external calls out of a preferred path and keep a backup path for redundancy
Explaining how route lists are used to prioritize route groups that contain different types of gateways that connect to the IP WAN or PSTN
Explaining how to create route patterns that use wildcards to route calls ...