The evolution of mobile technology can traced back as early as 1940, the first stage of the year, two-way radio or a handheld rig has put into vehicles such as taxis, cruisers. Police and ambulance, but there is no real mobile phones because they are not connected to the regular phone network. In particular, users of this form of technology, cell phones cannot dial phone numbers from their car. At first, mobile two-way radio is installed permanently in the vehicle but later continue like transportables or "bag phones" were created with cigarette lighter plug so that they can also do, and thus can be used as either a mobile phone or two-way radio.Portable in the beginning of the year 1940 Motorola developed a backpacked two-way radio, radio transmitter, and the subsequent establishment of a two-way mobile radios, large for United States Army batteries "Handie – radio" or HT, about the size of a human forearm will soon be invented technology from analog Motorola DynaTAC prototype was used for the first time in years 1973 up to three different versions of each mobile phone to improve how technology. Later classified as 1G, 2G and 3G1G or 1 – G, only the first version of the description of wireless telephone technology, telecommunications, mobile communications, these are the standard analogue that was put in place during the years of 1980 and continued until they were replaced by 2 G digital telecommunications. The chief difference between the two systems, mobile phones, 1G, and 2G, is that the radio signals are analog-based network, 1G, 2G, whereas a digital network that uses radio signals.In 1990, a second version of the system 2G or mobile phones, including GSM, iDEN IS-136 ("TDMA"), and IS 95 or CDMA "" – introduces the first GSM network in 1991 year, Radiolinja, founded in Finland 2G telephone system look changes from digital circuits, transmission and utilization of State-of-the-art telephone and fast signal network. For the most part, the frequency that is used by the 2G system in Europe are much higher than those in America. For example, 900 MHz frequency range, which is used in the 1G system and 1G system 2G in Europe was shut down immediately in order to have space for the 2G system in America IS the standard 54 – the band as AMPS and replaced some of the analog channels that exist. The appropriation of technologies 2G started out small, more compact mobile phones. This modification is enabled because the advanced technology improvements, including better battery life and more. Energy saving appliancesSMS text messaging becomes a reality with the network 2G the first GSM network, and all of the digital network in the year 1991, the first message that is generated in the United Kingdom. In 1993, which was the first time that an actual person to person text messages SMS SMS in Finland will be sent soon after its introduction as a way of communicating to youth. In fact, in most markets, is the text that you want to leave voice messages. The Second Edition also enables users to access media content on mobile phones when Radiolinja in Finland, Elisa is now bringing a ring tone downloads to be paid content.From the success of the development of the third generation network 2G or 3G technologies has developed a new technology than intialized, paving the way for many of the different standards with different contenders to promote its own technology differs from the system 2G, 3G the meaning of the standards in the IMT-2000 standard processing. This process does not need to create standards for the technology, but rather on a set of requirements (2 Mbit/s maximum data rate in the House, 384 kbit/s as well as outdoor) since then, the only source is a single world standard is to demolish, and different standards have been introduced since then.The network first trial before the commercial launch of 3G technology with NT domain by Japan in the Tokyo region in Como in May 2001 by the end of 2007 with 295 million members. 3G global network, which represents 9% of the number of people who use mobile phones.
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