GSM Modem Pool 8 Ports 32Sims , it has 8 ports, each ports has 4 SIM card slot, totally 8 ports 32SIMs, RS232 / USB type optional.
It is a newly developed GSM/GPRS Modem pool solution which can automatically realize SIM rotation when do bulk SMS sending, it can effectively lower the SIM block by carriers, and improve the SMS sending efficiency.
You can preset the SIM rotation rule through hyper terminal of PC by AT command, then the device will automatically do SIM rotation according to the rule.
GSM Modem Pool 8 ports 32 SIMs slot;
GSM 900/1800/850/1900Mhz Quad band (Quectel M35 module employed);