... DDNS IP modem, RS232 modem, GSM IP modem, GPRS data modem, data terminal,GPRS DTU, TCP/IP modem, Support transparent data transfe, gprs ip modem, gsm modemgprs modem with rs232 ... GPRS IP MODEM is a kind of cellular terminal device that provides data transfer function by public GPRS network.It adopts high-powered industrial ...