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FreeSWITCH project preview
Developer ToolsAlternative to TwilioAlternative to AvayaAlternative to Asterisk

FreeSWITCH

Cross-platform, scalable telephony platform designed to route voice, video, and text.

View on GitHub Visit website
LicenseMPL-2.0
GitHub stars6.2k
Last commit1 weeks ago
Tags6 topics
SipVoipPbxCWebrtcTelephony
Overview

Why consider FreeSWITCH?

FreeSWITCH is a high-performance open-source telecommunications platform. It powers PBX systems, SIP routing, video conferencing servers, and carrier-grade voice infrastructure.

Guided learning

Learn FreeSWITCH by building

Practical setup notes, real use cases, and copy-ready examples in one focused guide.

1 min read 2 sections
In this guide2 sections

Overview of FreeSWITCH

FreeSWITCH provides real-time voice, video, and messaging switching for enterprise telecom providers. It supports transcoding, SIP signaling, WebRTC gateways, and dynamic dialplans written in Lua, Python, or JavaScript.

Running with Docker

bash
1docker run -d \
2 --name freeswitch \
3 --net=host \
4 signalwire/freeswitch:latest

Access the FreeSWITCH CLI:

bash
1docker exec -it freeswitch fs_cli

FreeSWITCH is licensed under the Mozilla Public License Version 2.0 (MPL-2.0).

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FreeSWITCH FAQs

FreeSWITCH is listed as a Developer Tools tool on TiloBox. Review the overview, features, and official documentation on this page to decide whether it solves your specific workflow.

Start with the project's GitHub repository and official website for supported installation and deployment instructions. Test the setup with representative data or a small project before rolling it out more widely.

FreeSWITCH is listed under the MPL-2.0 license. Read the complete license text and the project's notices before using, modifying, or distributing the software.

Production readiness depends on your requirements. Review maintenance activity, security practices, documentation, backup and upgrade procedures, and compatibility with your stack; then validate it in a non-production environment.

FreeSWITCH is listed as an alternative to Twilio. Compare the core workflow, deployment model, integrations, and licensing against your must-have requirements before switching.