Second Generation phones

                 By end of year 1980, digital telecommunication standards were developed. These system standards enabled  better voice quality with higher capacity and low cost.  Mobile systems in 90s are called 2G mobile phones.

Second Generation mobile technologies were different because of their use of digital circuit switched transmission. New advancements were made quickly to prolong the call for long time and to longer distance. The tele connection was quick and reliable compared to 1G mobile technology. It gained huge popularity both in developed, developing and under developed countries to great extend.
As there were more advancement introduced in the way the call was made and quality was increased, there were also remarkable increase in mobile phone compactness, simple, portable and handy. Which then made to one of fashion gadget by the end of 90s.

2G digital standards was launched in Finland in 1991. In 1993 “Short Messaging Service” SMS was sent in Finland from person to person cell phone. Its been a glorious days from then for mobiles developments. GSM is the leading popular telecommunication technology used. The second generation mobile telephones had several advantages over 1G items. These included SMS messaging, which initially became possible on GSM networks & eventually on all digital networks. Apart from private sector advancements in this sector, many other tele communication standards were developed to facilitate high data transfer possibilities..



Even with many developments, 2G had some issues compared to 1G's analog signals, 2G's digital signals are very reliant on location and proximity. If a 2G handset made a call far away from a cell tower, the digital signal may not be enough to reach it.  While a call made from a 1G handset had generally poor quality than that of a 2G handset, it survived longer distances. This is due to the analog signal having a smooth curve compared to thedigital signal , which had a jagged, angular curve. As conditions worsen, the quality of a call made from a 1G handset would gradually worsen, but a call made from a 2G handset would fail completely.

As 2G is more commercialised, the demand of its operation and expection from mobile was further increased from consumers. This lead to introduction of even higher data transfer standards and services which was names as 2.5 generation mobile standards and  technologies.

        When we discuss developments in 90s in telecommunication sector, we need to release advancement in both mobile features and network developments. While network operators increased their data transfer quality and quantity with new standards, mobile hanset providers gave exuberant additional features to their phones than its just a calling device. 

We will see each of all those technologies in detail in subsequent posts.