... channel equipments work at the same time- can insert 16 SIM cards(big or small)- Connected through the two ... industrial chassis,elegant shellThe device built-in 16 wireless modules, can be inserted 16 SIM cards, you can also use the ... independence, support for the size of SIM card;3,ports support hot-swapping;4,a separate module can be ... Date:2011-10-21 18:30:28 MODEM POOL 16 ports 32 ports hot selling