... Applications: 1, PBX/IVR Services2, VoIP Services3, VoIP Gateways4, FAX Server, FAX On Demand5, Voice Mail Services6, Call Centers7, Prepaid Calling ... System8, Callback Service9, Traditional Calls/VoIP Calls Conference Hardware and software requirements: 1, Interface: PCI 2.22, CPU 800+MHZ3, RAM ...