4 Port GSM GPRS Modem Pool USB Interface SMS STK USSD at Command

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4 Port GSM GPRS Modem Pool USB Interface SMS STK Features

• (1) 4 Ports GSM Modem Pool

• (2) Working Frequencies: GSM 850/900/1800/1900 MHz

• (3)USB Port Interface

• (4) Support Bulk SMS/STK/USSD/Mobile Recharge

• (5) Support IMEI Change/AT Command

About 4 Port GSM GPRS Modem Pool USB Interface SMS STK

Product description 4 Ports Modem Pool is a big bulk sms machine which consists of 4 of GSM modems...The modem pool provides an efficiency way for management of numbers of modems. After connecting the modem pool to the computer through USB cable, the computer shows 4 COM Ports. You can use 'AT Command' or some software to control each of the modems for sending SMS, using mobile recharge STK USSD and changing imei. Technical Parameters (1)Type: 4 Port GSM Modem Pool (2) Working Frequency: GSM 850/900/1800/1900MHz (3) Interface: USB Port (4) Support Sending and Receiving Bulk SMS (5) Support STK/USSD/Mobile Recharge/IMEI Change (6) Power Source: 5-24V DC (7)Control via AT Commands Packing List: (1)One unit Modem (2)One Piece USB Cable (3)One Piece Power Supply Adapter (4)One Piece Driver CD (5)4 Pieces Antennas