Generations in mobile communication
1G: The first generation of systems for mobile telephony was analog, circuit switched, and it only carried voice traffic. The analog phones used in 1G were less secure and prone to interference where the signal is weak. Analog systems include AMPS, NMT and ETACS.
2G: The second-generation phones cover all speech into digital code, resulting in a clear signal that can be
Generations in mobile communication
Reviewed by haru
on
August 23, 2012
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