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| 1960s || Researchers develop the technology systems (like frequency reuse and [[w:Handover|handoff]]) that would lead to modern cellular networks.<ref name="History of Mobile Cell Phones | The First Cell Phone To Present Time"/> In the United States, Bell Labs prepares a detailed plan for implementing the cellular system.<ref name="Introduction to the History of Computing: A Computing History Primer"/> Soviet engineer {{w|Leonid Kupriyanovich}} develops very small mobile phones.
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| 1970s || {{w|1G}} is developed by {{w|AT&T}} and {{w|Bell Labs}} early in the decade.<ref name="Wireless communications first-to-second-generation-1g-to-2g">{{cite web|title=Wireless communications first-to-second-generation-1g-to-2g|url=https://www.coursera.org/learn/wireless-communications/lecture/1us1e/1-2-first-to-second-generation-1g-to-2g|website=coursera.org|accessdate=29 July 2017}}</ref> {{w|Nippon Telephone and Telegraph}} (NTT) in {{w|Japan}} and {{w|Ericsson}} in {{w|Sweden}} begin testing cellular technology and start designing equipment that would facilitate commercial service provision in their respective home markets.<ref name="Global Competitiveness of U.S. Advanced-Technology Industries: Cellular Communications">{{cite book|title=Global Competitiveness of U.S. Advanced-Technology Industries: Cellular Communications|edition=Information Gatekeepers Inc|url=https://books.google.com.ar/books?id=gpiukAVsQNkC&pg=SA2-PA3&lpg=SA2-PA3&dq=%22sweden%22+%221970s%22+%22telephone%22&source=bl&ots=w-_VIbYWYD&sig=E1rDsXquXCK7GTVGQhau9GBNUy8&hl=en&sa=X&ved=0ahUKEwj5oaeo1NDXAhWLjZAKHRViC-oQ6AEIWzAO#v=onepage&q=%22sweden%22%20%221970s%22%20%22telephone%22&f=false|accessdate=21 November 2017}}</ref> The first mobile call is made.<ref name="1876 to 2015 – the History of the Mobile Phone"/>
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| 1980s || {{w|1G}} is deployed.<ref name="Wireless communications first-to-second-generation-1g-to-2g"/><ref name="Introduction to the History of Computing: A Computing History Primer"/> Mobile phone technology starts to be released commercially.<ref name="History of Mobile / Cell Phone">{{cite web|title=History of Mobile / Cell Phone|url=http://www.radio-electronics.com/info/cellulartelecomms/history/mobile-cell-phone.php|website=radio-electronics.com|accessdate=29 July 2017}}</ref> Adding text messaging functionality to mobile devices begins.
