Reinventing the dial-up modem
https://saket.me/dtmf-tones/
We needed a way to send data to our server without an internet connection. A team member came up with this fantastic idea of using DTMF tones!
Web App + Offline = Crappy Client App at The Furrygoat Experience
http://www.furrygoat.com/2008/04/21/web-apps-offline-crappy-client-app
"Really? Do people really want this?"