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The history of mobile phones covers mobile communication devices that connect wirelessly to the public switched telephone network. While the transmission of speech by signal has a long history, the first devices that were wireless, mobile, and also capable of connecting to the standard telephone network are much more recent.
Defunct mobile phone companies of the United States (2 C, 32 P) I. ITT Inc. (1 C, 38 P, 1 F) M. MCI Communications (12 P) O. Oak Industries (1 C, 5 P) Pages in ...
Two decades of evolution of mobile phones, from a 1992 Motorola DynaTAC 8000X to the 2014 iPhone 6 Plus. A mobile phone, or cell phone, [a] is a portable telephone that allows users to make and receive calls over a radio frequency link while moving within a designated telephone service area, unlike fixed-location phones (landline phones).
On April 3, 1973, he placed the first public call from a handheld portable cell phone while working at Motorola, from a Manhattan sidewalk to his counterpart at competitor Bell Labs. [ 4 ] [ 5 ] Cooper reprised the first handheld cellular mobile phone (distinct from the car phone ) in 1973 and led the team that redeveloped it and brought it to ...
Defunct mobile phone companies of the United States. Subcategories. This category has the following 2 subcategories, out of 2 total. H. Helio (wireless carrier) (4 P) S.
This is the list of mobile phone brands sorted by the country from which the brands originate. The number of mobile phone brands peaked to more than 750 in 2017 before declining to nearly 250 brands in 2023. [1] Bold refers to major smartphone brand. [2] [3]
If old cell phones aren't the only vintage items you have stored away in your home, take a look at what some of the most valuable VHS tapes are going for. Related Articles. AOL.
1971: AT&T submitted a proposal for cellular phone service to the U.S. Federal Communications Commission (FCC). 3 April 1973: Motorola employee Martin Cooper placed the first hand-held cell phone call to Joel Engel, head of research at AT&T's Bell Labs, while talking on the first Motorola DynaTAC prototype.