... modem 2,sending bulk SMS 3,with bulk sms software 4,quad band 5,AT Command Quad band 64 ... made of Wavcom modules. There are four different modules. Module NO.FunctionFrequency(MHz)Q2303SMS(600pcs per hour)900/1800Q2403SMS,MMS900 ... card into device2, Install Driver. 3, Install Software. We provide free software named SMS Caster if you don't have.P ... 64 port USB GSM sms modem with free English software