... 1.Standard industrial 2.surport AT command 3.Remote sleep and awake 4. ... IP Protocal rs232/rs485 Fiber optical modem support AT command KB3000 GPRS DTU (Data Terminal Unit) is ... optional. When set to Modem, single standard AT command (GSM07.05 and 07.07). When SMS Modem, ... 1W) at DCS1800MHz and PCS1900MHzCompatible standardAT command(GSM07.05 and 07.07)Basic functionextend command, SMS, USSD, CSD, Embed ...