... human, material and information transfer on time; 4,to avoid high communication costs to be incurred ... 16 SIM card slots Wireless access to Internet Comply with GSM phase-2 standard Send and receive ... MMS per hour Accessories: power cable, data cables, USB Cable, 16 antennas, and CDProduct Code: USB2. ... human, material and information transfer on time; 4,to avoid high communication costs to be incurred ...