Multi-Level Menus and Timeouts

A menu option doesn't have to be a final action — it can link to another menu, letting you build sub-menus (for example, "Press 2 for Support" leading to its own "Press 1 for Billing, Press 2 for Technical Issues" menu).

Each menu also has a configurable timeout (how long to wait for a caller's input) and a configurable message for what plays if they press something that isn't a valid option, so a confused caller isn't just left in silence or dropped.