Description
the 4g network version:gps+ wifi+lbs +agps positioning, locate more accurate; the 4g network version: 4g network, volet video call,voice call,remote monitor, access internet by wi-fi ,lte gprs data.connect more fast and stable; call function: gsm, td-lte-volte video call (both sides need to open this function, and the network has prompted volte icon);
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