Open Source Alternatives to 3CX Phone System

A communications platform that provides voice over IP (VoIP) telephony and unified communications for businesses. The software manages business phone systems through a wide range of features including video conferencing, live chat, and dedicated mobile applications for remote connectivity. It is designed for organizations of various sizes to handle internal and external communications via a centralized management console that controls call routing and user permissions. The system supports integration with various SIP trunk providers to facilitate global calling and messaging. Deployment options include hosted environments, on-premises installations, or private cloud configurations to suit different infrastructure requirements. This software serves as a central hub for voice, video, and text communication to streamline business operations. The platform includes tools for call reporting and management to track communication efficiency.

Whether you want to cut software costs or escape vendor lock-in, these open source alternatives to 3CX Phone System give you an option you fully own. You can self-host them, so your data stays on infrastructure you control. This page lists 1 open source alternative to 3CX Phone System. The most popular is FusionPBX. It uses the mpl-1.1 license and ships an official Docker image.