Before we create a simple auto-attendant menu, let's cover a couple of other useful dialplan applications. The Goto() application allows us to jump from one position in the dialplan to another. The parameters to the Goto() application are slightly more complicated than with the other applications we've looked at so far, but don't let that scare you off.
The Goto() application can be called with either one, two, or three parameters. If you call the Goto() application with a single parameter, Asterisk will jump to the specified priority (or its label) within the current extension. If you specify two parameters, Asterisk will read the first as an extension within the current context to jump to, and the second parameter as the priority (or label) within that extension. If you pass three parameters to the application, Asterisk will assume they are the context, extension, and priority (respectively) to jump to.