Before going to space he decides to ship the telephone home "since it was limited by its short range to the neighborhood of an earth-side [i.e.terrestrial] relay office." Ten years later, an essay by Arthur C. TV series Get Smart (1965-1970) depicted spy gadgets with mobile telephones concealed in random objects, including shoes.
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.
Modern cellular networks allow automatic and pervasive use of mobile phones for voice and data communications.
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. Shortly after, AT&T offered Mobile Telephone Service.
It is found in Erich Kästner's children's book The 35th of May, or Conrad's Ride to the South Seas: The Second World War made military use of radio telephony links.
Hand-held radio transceivers have been available since the 1940s.IMTS used additional radio channels, allowing more simultaneous calls in a given geographic area, introduced customer dialing, eliminating manual call setup by an operator, and reduced the size and weight of the subscriber equipment.or RCC was a service introduced in the 1960s by independent telephone companies to compete against AT&T's IMTS.Clarke envisioned a "personal transceiver, so small and compact that every man carries one." He wrote: "the time will come when we will be able to call a person anywhere on Earth merely by dialing a number." Such a device would also, in Clarke's vision, include means for global positioning so that "no one need ever again be lost." Later, in Profiles of the Future, he predicted the advent of such a device taking place in the mid-1980s. In the USSR, Leonid Kupriyanovich, an engineer from Moscow, in 1957-1961 developed and presented a number of experimental models of handheld mobile phones.The weight of one model, presented in 19kdn61, was only 70 g and could fit on a palm.Mobile telephones for automobiles became available from some telephone companies in the 1940s.