Chapter 6. An Overview of Dial Plan Design and Implementation in Cisco Unified Communications Manager

The dial plan is the most important part of any communication system, IP or non-IP. Without a dial plan, an endpoint wouldn’t know how it can communicate with another endpoint, whether the latter is local or remote. In order to place or receive calls with an endpoint connected to Cisco Unified Communications Manager (CUCM) or to any external entity, such as another cluster or the public switched telephone network (PSTN), you must first configure the necessary components and connections that compose the basis for a dial plan. The dial plan determines how calls are routed, calling privileges, type of connection they will utilize, such as analog ...

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