ICT Innovations released a completely free and open-source broadcasting solution. ICTDialer is an open-source Unified Communications autodialer and telemarketing software solution, ICTDialer powered with re-known open source Content Management system Drupal and Powerful l Freeswitch based communication framework Plivo with multi-tenant and Voice, SMS & Fax broadcasting capabilities. It can be scaled to blast thousands of simultaneous calls. ICTDialer is capable to fit in various telemarketing and broadcasting and telemarketing scenarios. It empowers the user with capabilities of Drupal CMS and Plivo Communication Framework

Following are some screenshots of ICTDialer

You need to add a broadcasting gateway to terminate your traffic, add, export your contacts in contact groups and add recordings before you run new campaigns