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1G was developed by japan.
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Voice calls were allowed by 1G
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2G was developed by finland
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GSM was enabled by 2G
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SMS messages started to be sent by cell phones.
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3G was won by Japan
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Phones was internet acces
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Video calls and TV transmission were integrated by 3G
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4G was won by EE.UU
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Fast internet access was allowed
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Video game services were integrated
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Tv was improved with hight definition and 3D
