1.4 Port Asterisk GSM Card 2.PCI 2.2 Slot 3. PSTN, Phone, ... Detection 5.Factory Price SinoV-GSM400 4GSM GOIP asterisk card/asterisk voip gatewayProduct Description Products: SinoV-GSM400E is a ... with the special-purpose drive chip, it make the card has super strong anti-interference. And support clock resume ... 2, Temperature Storage: -35°C to 120°C 3, Humidity: 10% to 90% Non-condensing 4, Voltage: 5V/12V ...