This sparked competition in the sector as the new operators challenged the incumbent 1G network operators.
Ten years later, in 2001, the third generation (3G) was launched in Japan by NTT Do Co Mo on the WCDMA standard.
The first commercial automated cellular network (1G) analog was launched in Japan by Nippon Telegraph and Telephone in 1979.
This was followed in 1981 by the simultaneous launch of the Nordic Mobile Telephone (NMT) system in Denmark, Finland, Norway, and Sweden.
Consequently, the industry began looking to data-optimized fourth-generation technologies, with the promise of speed improvements up to ten-fold over existing 3G technologies.
The first two commercially available technologies billed as 4G were the Wi MAX standard, offered in North America by Sprint, and the LTE standard, first offered in Scandinavia by Telia Sonera.
Feature phones and basic mobile phones tend to use a proprietary, custom-designed software and user interface.
By contrast, smartphones generally use a mobile operating system that often shares common traits across devices.
From 1983 to 2014, worldwide mobile phone subscriptions grew to over seven billion—enough to provide one for every person on Earth.The International Telecommunication Union measures those with Internet connection, which it calls Active Mobile-Broadband subscriptions (which includes tablets, etc.).In the developed world, smartphones have now overtaken the usage of earlier mobile systems.Several other countries then followed in the early to mid-1980s.These first-generation (1G) systems could support far more simultaneous calls but still used analog cellular technology.