Updating Twilio phone calls in real time with Python

You can use this feature to create a waiting room functionality, have asynchronous tasks change what is happening on phone calls as other parts of your app work on heavier computation without leaving the phone call hanging. You can also use it to kill all of your currently active calls in case you mess up during development. Additionally, you can end a phone call automatically or redirect the call to a new URL that provides updated TwiML to use.