The Star2Billing Team released have released Newfies-Dialer, free and open source software solution for multi-tenant voice broadcast and auto-dialer applications used for emergency broadcasting (reverse 911), telemarketing and a range other applications.
We announced our work on Newfies-Dialer in April 2011, and after much development and testing, it is ready for production. It is a well rounded product with a great deal of potential for all organisations and telecoms service providers that need to broadcast voice messages to a large numbers of people in a short space of time.
We have spent a lot of time on documentation for the users, providing a beginner's guide and automated install scripts, and documentation for developers to help them code imaginative voice applications for Newfies-Dialer. For more information, navigate to http://www.newfies-dialer.org