It was first available in May 2001 as a pre-release (test) of W-CDMA technology. The first commercial launch of 3G was also by NTT DoCoMo in Japan on 1 October 2001, although it was initially somewhat limited in scope; broader availability of the system was delayed by apparent concerns over its reliability.
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Where it all Began: The Launch of 2G. The second generation of mobile networks appeared under the GSM standard in 1991 in Finland. Finally, the calls could be encrypted, increasing security and creating a variety of new communication possibilities for different industries.5 Haz 2020
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