GSM Modem Pool 16 Ports 32Sims , it has 8 ports, each ports has 4 SIM card slot, totally 16 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.
Just like 16 single-channel equipments work at the same time
Insert 16 SIM cards(big or small)
Connection with the computer through a data line be integrated with Serial 16