New and suffering from how rich this is. I have an existing database application which can listen and send via a web server. It can be restful. I need to create an inbound IVR. RC is to answer a call, present the welcome and menu, then send to my app. My app will authenticate caller to the database and direct RC to ask the next question/prompt to the caller. I don't think I have to use any RC menus structures? Is this a webhook?