SinoV-GSM400 is a four-way wireless voice cards, slot type is PCI socket, line PCI 2.2 standards. It is mainly used in wireless, PSTN and INTERNET environment and Asterisk PBX system needs to provide all the features.

GSM400 is a 4 port wireless Asterisk PCI card which is mainly applied to GSM, PSTN and Internet environment. Support the access of GSM, PSTN,telephone to realize GSM, PSTN, Internet integration. It supports all the functions of Asterisk PBX systems needed.

Features:
1,Support the access of wireless GSM, PSTN, Phone.
2,Supports GSM wireless communication standard.
3,Support GSM: 850M/900M/1800M/1900M                                                                      4,Support 4 channels, user can choose to insert wireless, FXO or FXS module in each channel.
5,The PCI slot is based on PCI2.2.
6, Support the reversal function of polarity when call out by wireless.
7 32 bit bus master DMA data exchanges across PCI interface at 132Mbytes/sec for minimum host processor intervention.
8, It supports all the functions of Asterisk PBX systems needed.

Special Features:
1 SinoV-GSM400P’s driver totally compatible with TDM400P’s driver—WCTDM,
so user don’t need to understand much knowledge about wireless part. All the
program run on TDM400P can be used on GSM400E, it reduce users' difficulty of
development.
2 GSM400P support 4 channels, user can choose to insert wireless, FXO or FXS module to each channel. GSM400P realize the integrate of Wireless(GSM ) and PSTN.
3, High security: It adopts tertiary thunder preventing technology, can prevent the thunder and lightning from striking effectively
4,Super strong Anti-interference: All logic signals urge with the special-purpose drive chip, it make the card has super strong anti-interference. And support clock resume automatically. When the clock was interfered with the frequency deviation to happened by the external world to influence the communication,the system can reset to the clock automatically, resume normal communication
5,GSM400P can work in a PC with other asterisk cards, the driver will distribute the voice channels automatically.

Applications:
1 GSM - VoIP gateway
2 Mobile IP-PBX
3 GSM  Call back
4 GSM  wireless bypasses system
5 GSM  wireless call centre.

Hardware and software requirements:
1 Interface: PCI 2.2
2 CPU 800+MHZ 
3 RAM 128+MB
4  Linux kernel 2.4.x or 2.6.x
Size and Weight
1 Size(L*W*H): 210*105*24MM
2 Weight: 305g

The environmental instructions for using:
1 Temperature Operation: 0 to 80°C
2 Temperature Storage: -35°C to 120°C
3 Humidity: 10% to 90% Non-condensing
4 Voltage: 5V/12V
5 Power Dissipation Mas: 7.83w/39.82w