3CX Phone System for Windows is a software-based IP PBX that replaces traditional proprietary hardware PBX / PABX. 3CX’s IP PBX has been developed specifically for Microsoft Windows and is based on the SIP standard – making it easier to manage and allowing you to use any SIP phone (software or hardware). A software-based IP PBX / PABX offers numerous benefits:

 
A software-based IP PBX / PABX offers numerous benefits:

 No need for separate phone wiring – phones use computer network
 Easier to install & manage via web-based configuration interface
 A software-based IP PBX is far less expensive than a hardware-based PBX / PABX
 Employees can move offices without requiring any changes in the wiring or IP PBX configuration  Choose from the many SIP based hardware phones instead of getting locked in with one vendor
 Receive & Make calls via the standard PSTN using VOIP Gat

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 Save on call costs with 'out of the box' configurations for popular SIP / VOIP providers