3CX phone system is an open standard phone system for Windows. This business phone system provides better features and flexibility at a lower cost than traditional phone systems. 3CX can replace your company’s hardware PBX without the need for additional phone wiring making the transition quick and simple. It can support popular SIP phones, VoIP providers and traditional PSTN lines. The 3CX phone system has a web based management console making it easy to configure, getting rid of expensive maintenance costs.