Which are the 2G standard?

The three main 2G technology standards are Global System for Mobile Communications (GSM) , which is based on European Telecommunications Standards Institute (ETSI) standards, time division multiple access (TDMA) IS-136 and code division multiple access (CDMA).

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What are 2G networks?

2G refers to the second generation of mobile networks based on GSM . The radio signals used by the 1G network were analog, while 2G networks were digital. 2G capabilities were achieved by allowing multiple users on a single channel via multiplexing. During 2G, cellular phones were used for data along with voice.

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