1)a complete Asterisk powered IP-PBX with 1-8 port GSM modules
2)have 1WAN,1LAN with router function.

The SinoV-X600 GSM IPPBX is a complete Asterisk powered IP-PBX with 1-8 port GSM modules, It is an embedded system with built-in SIP/IAX proxy server and NAT functions. It provide a solid, uniform platform for traditional GSM communications as well as VoIP communications

      SinoV-X600 GSM IPPBX have 1WAN,1LAN with router function. 1-8 PORT GSM modules.

System:
uClinux/Astfin

Hardware:
CPU: 400MHz Blackfin 533 Chip
Four analog (FXO/FXS) module interfaces. 
NAND flash 256 M
SDRAM 256M  1G SD card

Features:

Built-in configurable Asterisk IP PBX
Astfin GUI
High performance OSLEC (Open Source Line Echo Canceller)
Voice mail
Call forward, call waiting, call transfer
Call conference
Call queues
SIP trunking, IAX trunking
PSTN analog trunk (up to four PSTN trunks)
Flexible dial plan
Configurable IVR menu.
replaceable 1G MMC/SD memory.

Interface:
2 X RJ45 port,1WAN + 1LAN with router.
1 X power port.
1 X RS232 port.
4 X RJ11 ports. 
1 X MMC/SD slot.
1-8 X GSM card modules slots