FreePBX

Free PBX is an open source, web-based PBX solution, FreePBX is easy to customize and adapt to your changing needs. FreePBX can run in the cloud or on-site, and is currently being used to manage the business communications of all sizes and types of businesses from small one person SOHO businesses, to multi-location corporations and call centers. The FreePBX Ecosystem provides you with the Freedom and Flexibility to custom design business communications around your needs.