... ,CDMA modem, HSUPA modem, Wireless modem,RS232 MODEM, industry MODEM, GSM modem, RS232 WIRELESS GSM/GPRS MODEM, SMS GSM MODEM ... modem, sim card modem, GSM modem, huawei, gsm modem rs232, huawei 3g usb modem, huawei modem, huawei 3g, hsdpa ... 2/2+Support DTMFSupport SMS and CSD functionStandard AT command interface InterfaceRS232 serial port, rates: 110~230400bits/sIndicator lights: “Power”, “ACT”, ...