3CX Phone System for Windows is an award-winning software-based business phone system that replaces a traditional proprietary hardware PBX. It is based on the SIP standard and supports most popular SIP phones, VoIP Gateways, VoIP service providers and PSTN phone lines. It is easy to manage by system administrators as it integrates well with Windows Network infrastructure.

• Easier to install & manage via web-based configuration interface
• Far less expensive to purchase and expand than a hardware-based PBX / PABX
• Improve productivity with presence, desktop call control and extension management
• No need for separate phone wiring – phones use computer network, easy hot desking!
• Delivery mobility by allowing employees to work from home using a remote extension
• Choose between popular IP hardware phones or softphones - no vendor lock in