Twilio Call Tracking Demo
Call tracking works with the Twilio API, so you'll need an account and phone number at Twilio before you can get started. Twilio sells simple, pay as you go phone services, and you can sign up for a free account with $30 of free credits at http://www.twilio.com.
Installation is as simple as copying the folder, making it writeable and editing the configuration file.
Copy the folder to your server.
Make the folder writeable.
Access via browser
Released under the MIT license.