A Fantasy Football Hotline was created using Ruby and Twilio Voice, building on the concept of Sports Phone from the 1970s. The hotline uses an RSS feed to provide news updates, with a robot voice reading out headlines and pausing between each one. To create the hotline, a Ruby script is used to parse an RSS feed, while Twilio handles phone calls and generates TwiML responses. A Sinatra app is also created to handle incoming calls and send TwiML responses to Twilio. The project showcases how to build simple voice apps with Twilio Voice and Ruby, and provides resources for further learning.