2G ( or 2-G) is short from second generation tecnology of mobile phone. this technology
mobile phone comes to changed first mobile tecnology, 1G is using analog system
likes AMPS(Advance Mobile Phone System). This generation using mechanism Time Division Multiple Access(TDMA) and Code Division Multiple Access(CDMA) in communication technique.
2G is mobile network telecommunication that shared with commercial on standart GSM network in Finland by Radiolinja(now is part from Elisa) on 1991. Different with 1G, 2G using digital system.
