GitHub repository: twilio-contact-center/plugin-queued-callbacks-and-voicemail
Primary language: JavaScript
Description: Awesome plugin demonstrating how you can implement an option to have your customers be able to choose to receive a call back when things get busy, instead of waiting on the phone endlessly, without losing their place in line. Similar to how Comcast does it on their customer support lines, etc. Also includes queued voicemail callback capabilities.