1.4 Port Asterisk GSM Card 2.PCI 2.2 Slot 3. PSTN, Phone, CDMA, GSM Support 4 ... way wireless voice cards, slot type is PCI-E socket, line PCI-E 2.2 standards. It is mainly used in wireless, ... module in each channel. 5,The PCI slot is based on PCI2.2. 6, Support the reversal function of ... wireless call centre.Hardware and software requirements: 1, Interface: PCI 2.2 2, CPU 800+MHZ 3, RAM 128+MB 4, Linux ...