USB 32-PORT GSM/GPRS MODEM POOL Based Wavecom module Q24Plus 850 ... stack 32 SIM card slots USB 32-PORT GSM/GPRS MODEM POOL Product DescriptionUSB interface Based Wavecom module Q24Plus850 ... for mini card or max cardWith earphone JackComply with GSM Phase2+ standardSMS, MMS, data, voice, internet ... -transparent modeTransparent mode Specification for SMS via GSM/GPRSPoint to point MO and MTSMS cell ...