... 850M/900M/1800M/1900M. 4,Support 8 channels, user can choose to insert wireless, FXO or FXS ... totally compatible with TDM400P’s driver—WCTDM, so user don’t need to understand much knowledge about ... of development. 2, GSM800 support 8 channels, user can choose to insert wireless, FXO or FXS module ... voice channels automatically. Applications: 1, GSM (CDMA)- VoIP gateway 2, Mobile IP-PBX 3, GSM (CDMA) Call ...