Freepbx

FreePBX provides a web‑based graphical interface for configuring and operating the Asterisk telephony engine. Through the browser you can create and edit extensions, set up inbound and outbound routes, manage voicemail, and control call handling features such as IVR, queues, and conference rooms. The interface stores settings in a database and applies them to Asterisk in real time, allowing administrators to manage a PBX without editing configuration files directly.

The software is intended for system administrators, small‑to‑medium businesses, and service providers who need a self‑hosted, open‑source solution for voice communications. It runs on standard Linux servers and can be installed alongside other services, offering a free‑tier experience without subscription fees or proprietary lock‑in. The GPL‑2.0 license ensures that the code can be inspected, modified, and redistributed.

FreePBX is positioned as a stable, production‑ready platform that abstracts the complexity of Asterisk while preserving full access to its underlying capabilities. It supports typical PBX functions such as call routing, voicemail, and reporting, and can be extended with additional modules from the community.