264 CHAPTER 11: DIAL PLAN■ Adding New Dial Plan TablesCAUTION: The dial plan must include Tables 1, 2, and 3. Do not deletethem. You may create additional dial plan tables if necessary, but youmust number them 4 or higher.If the Least Cost Routing table exists, it takes precedence over the Internaltable. If the system cannot find a Least Cost Routing table, it attempts tofind a corresponding entry in the Internal table. If you have entries for thesame purpose in both the Least Cost and Internal tables, the behavior ofthe dial plan can be confusing.See “Dial Plan Command Format” next for a description of dial plancommand syntax and structure. For a complete list and description of dialplan commands, including command arguments and examples, see “DialPlan Configuration File Commands” on page 305.Dial Plan CommandFormatEach dial plan table contains a sequence of commands. These commandscollectively determine how the system manages calls.Most of the dial plan commands have a similar format, as shown inFigure 12.
