<P> The second generation introduced a new variant of communication called SMS or text messaging . It was initially available only on GSM networks but spread eventually on all digital networks . The first machine - generated SMS message was sent in the UK on 3 December 1992 followed in 1993 by the first person - to - person SMS sent in Finland . The advent of prepaid services in the late 1990s soon made SMS the communication method of choice among the young, a trend which spread across all ages . </P> <P> 2G also introduced the ability to access media content on mobile phones . In 1998 the first downloadable content sold to mobile phones was the ring tone, launched by Finland's Radiolinja (now Elisa). Advertising on the mobile phone first appeared in Finland when a free daily SMS news headline service was launched in 2000, sponsored by advertising . </P> <P> Mobile payments were trialed in 1998 in Finland and Sweden where a mobile phone was used to pay for a Coca - Cola vending machine and car parking . Commercial launches followed in 1999 in Norway . The first commercial payment system to mimic banks and credit cards was launched in the Philippines in 1999 simultaneously by mobile operators Globe and Smart . </P> <P> The first full internet service on mobile phones was introduced by NTT DoCoMo in Japan in 1999 . </P>

Who invented mobile phones and in which year