USB GSM modem 64 port with IMEI change servers modem serial port gsm modem

Basic Feature:
     Asynchronous, transparent or non-transparent, to a maximum    14400 bits / s
     Baud Rate : 300-115200 bits / s
     Automatic baud rate: from 2400 to 19200 bits / s
     Fax support three
     Switched voice and fax
     V.42, V.42bis
     GPRS compatible
     WAP compatible
     SMA Antenna Interface
     SIM Card Outlet
     Power connector
     RS-232, the Mini-DB-9 connector
     AT command control ( GSM 07.07 and 07.05)

Application:
      Large shopping malls, supermarkets
      Professional market, large wholesalers
      Large hotels, large-scale entertainment
      Large agencies
      Transport, logistics industry
      Large enterprises, and institutions
      Large hospitals, large bookstore
      Newspaper, television and radio stations
      Oil Company ( other chain business model)
      Government agencies or large township  

Hardware Feature:
     Support dual-band GSM: 900/1800 MHz  or quad-band GSM:850/900/1800/1900MHz
     Meet the ETSI GSM 2 + standards
     Class 4 ( 2W @ 900 MHz) Class 5 ( 1W @ 1800 MHz)
     5 -24 VDC power supply (which can be directly connected to the nickel- metal hydride or lithium batteries)       
     Operating Temperature: -20 ° C - + 55 ° C
     Storage temperature: -25 ° C - + 70 ° C
     Size: standard 1U chassis