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3CX (Free Edition)

Free

Free VoIP phone system with unlimited extensions and web-based management.

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4.5 Editor Rating
Vetted Score
4.5 / 5.0

Scored 4.5/5 for its robust free feature set, cross‑platform support, and intuitive web UI, though advanced modules require paid upgrades.

Key Features
Unlimited Extensions

Create as many internal extensions as needed without any licensing restrictions.

Web‑Based Management Console

Administer the PBX, configure call routing, and monitor live statistics from any browser.

Integrated Video Conferencing

Host HD video meetings directly from the PBX with screen sharing and chat.

Frequently Asked Questions

Yes, the Free Edition allows unlimited internal extensions with no additional licensing fees.

It runs on Windows 10/11, Windows Server editions, and major Linux distributions such as Ubuntu and Debian.

Advanced call‑center tools, CRM integrations, mobile apps, and premium support are only available in the paid editions.
Specifications
Pricing Model The Free Edition provides core PBX features and unlimited extensions at no cost; premium editions add advanced call‑center, CRM, and mobile apps.
Supported Platforms
Windows 10/11Windows Server 2016/2019/2022Linux (Ubuntu, Debian, CentOS)