SIM switch: 2 SIM cards, auto-switch cases: weak signal, data limit, SMS limit, roaming, no network, network denied, data connection fail, SIM idle protection. 4G LTE (Cat 4), 3G, 2G. Antennas: 2 x SMA for LTE, 2 x RP-SMA for Wi-Fi, 1 x SMA for GNSS.
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