4,8,12,16 FXS/FXO ports PCI/PCI-E card ... gain PCI/PCI-E analog card for Freeswitch and Asterisksupport 4 to 16 FXS/FXO ports Applications: 1, PBX/IVR Services2 ... , VoIP Services3, VoIP Gateways4, FAX Server, FAX On Demand5, Voice Mail Services6, Call Centers7, Prepaid Calling Card System8 ... .22, CPU 800+MHZ3, RAM 128+MB4, Linux kernel 2.4.x or 2.6.xSize and Weight5, Size(L*W ...