1.4 Port Asterisk GSM Card 2.PCI 2.2 Slot 3. PSTN, Phone, CDMA, GSM Support ... 8 wireless voice cards, slot type is PCI socket, line PCI 2.2 standards. It is mainly used in GSM ... all the features.GSM800 is a 8 port GSM channel wireless Asterisk PCI card which is mainly applied to GSM, ... wireless call centre.Hardware and software requirements: 1, Interface: PCI 2.2 2, CPU 800+MHZ 3, RAM 128+MB 4, Linux ...