PBX Features Modular: the system adopts modular design, multiple access capabilities, supports analog, digital, wireless and VoIP access modes, and can be flexibly combined. Self recording: self recording, without unnecessary recording equipment. High performance, four core Intel processor: the system adopts x86 architecture, four core CPU and 4G memory. Redundancy design: double hard disk, double power supply design, maximize the stability of the equipment. Multi system support, compatible with third-party business deployment: support Windows / Linux, can deploy third-party business software, such as ERP, CRM system, save hardware costs.