<P> In the United States , engineers from Bell Labs began work on a system to allow mobile users to place and receive telephone calls from automobiles , leading to the inauguration of mobile service on 17 June 1946 in St. Louis , Missouri . Shortly after , AT&T offered Mobile Telephone Service . A wide range of mostly incompatible mobile telephone services offered limited coverage area and only a few available channels in urban areas . The introduction of cellular technology , which allowed re-use of frequencies many times in small adjacent areas covered by relatively low powered transmitters , made widespread adoption of mobile telephones economically feasible . </P>
<P> In the United States , engineers from Bell Labs began work on a system to allow mobile users to place and receive telephone calls from automobiles , leading to the inauguration of mobile service on 17 June 1946 in St. Louis , Missouri . Shortly after , AT&T offered Mobile Telephone Service . A wide range of mostly incompatible mobile telephone services offered limited coverage area and only a few available channels in urban areas . The introduction of cellular technology , which allowed re-use of frequencies many times in small adjacent areas covered by relatively low powered transmitters , made widespread adoption of mobile telephones economically feasible . </P>
when was the first mobile phone released to the public
when was the first mobile phone released to the public
17 June 1946
17 June 1946