FreePBX is a free, open-source web-based control panel that simplifies the management and configuration of phone systems powered by the Asterisk platform. It allows users to set up, monitor, and maintain Voice over IP (VoIP) phone networks through an intuitive interface, eliminating the need for deep technical knowledge of telephony systems. FreePBX supports features such as call routing, voicemail, conferencing, and call recording, making it a popular choice for businesses seeking cost-effective and flexible communication solutions.