I have been working with the Twilio API for a few of my projects. I have used Twilio to call me when disk space is running low on a server or to call my house and request its status. Twilio is a cloud-based communications platform for sending and receiving text messages or placing phone calls. Twilio is wrapped up nicely with a RESTful API so ThingSpeak or MATLAB can use it without a lot of setup.
Tonight, I was following a beginner tutorial that I wrote for using Twilio and ThingSpeak, and I noticed that their voice example plays a friendly greeting and then by surprise Twilio starts playing Rick Astley’s “Never Gonna Give You Up”, for the world’s geekiest rickroll.
Twilio’s example points to this Url: https://demo.twilio.com/docs/voice.xml.
If you look closer you will see the following code:
<?xml version="1.0" encoding="UTF-8"?> <Response> <Say voice="alice">Thanks for trying our documentation. Enjoy!</Say> <Play>http://demo.twilio.com/docs/classic.mp3</Play> </Response>
Go ahead and click: http://demo.twilio.com/docs/classic.mp3
I just experienced this when tested the call functionality of my application. Hilarious!