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Turn a Windows PC into a VoIP switchboard
3CX Phone System is a Windows-based communications platform that lets you run VoIP telephony from a standard computer, replacing traditional PBX/PABX hardware. The free edition permits you to create a software switchboard for home or office use, enabling internal and external calling without purchasing dedicated telephony equipment.
Main capabilities
- Control how calls are routed through the system (call flow and routing rules).
- Apply and enforce user permissions and dialing policies.
- Restrict or allow specific outgoing calls according to configurable rules.
- Replace legacy PBX/PABX setups with a software-driven solution that runs on existing machines.
Setup and management
The application provides a web-based management console that keeps installation and configuration straightforward. Clear-guided steps help even non-experts complete the initial setup and ongoing administration. Typical tasks—like creating extensions, defining call rules, and setting permissions—are accessible via the browser interface.
What you need to get started
- A computer with a working microphone and headset or speakers.
- An active internet connection and a subscription or SIP trunk from an ISP or VoIP provider.
Who this suits
This solution fits a broad range of environments, from solo operators and small businesses to larger teams that want a flexible, software-centric phone system. Its feature set and policy controls make it adaptable to growing organizations.
Recommended edition
3CX Free is a good starting point for those who want to experiment or deploy a basic, no-cost phone system. It delivers the core functionality described above with an easy-to-use UI, while paid tiers add advanced features and expanded capacity if required.
Technical
- Windows
- Free
