You likely know the uncomfortable feeling when family members refuse to talk to each other, and such is the case with FD-LTE and TD-LTE -- two similar but incompatible LTE technologies that've gained traction across the globe. Now ZTE is looking to play peacekeeper with its MF820S2 USB modem and MF91S mobile hotspot, each which speak fluently in both LTE languages. While Marvell was the first to accomplish this f