Second generation network (2G) is the most common network type, and includes GSM and GPRS. 2.75G is often of EDGE/EGPRS type. Third generation (3G) includes UMTS (W-CDMA) and is fast (useful for mobile internet).
GSM / HSPA / LTE
802.11b, 802.11g, 802.11n (Wi-Fi 4)
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