1.4 Port Asterisk GSM Card 2.PCI 2.2 Slot 3. PSTN, Phone, CDMA, GSM Support ... with the special-purpose drive chip, it make the card has super strong anti-interference. And support clock resume ... , resume normal communication 5,GSM800 can work in a PC with other asterisk cards, the driver will distribute the ... software requirements: 1, Interface: PCI 2.2 2, CPU 800+MHZ 3, RAM 128+MB 4, Linux kernel 2.4. ...