Search Results for: Wired wireless networks devices
services use a cellular network architecture, and, therefore, mobile telephones are called cellular telephones or cell phones, in north america. in addition to telephony , s-era mobile phones support a variety of other services , such as text messaging , mms , email , internet access , short-range wireless
stages of radio engineering. in , finnish inventor eric tigerstedt filed a patent for a "pocket-size folding telephone with a very thin carbon microphone". early predecessors of cellular phones included analog radio communications from ships and trains. the race to create truly portable telephone devices...
https://en.wikipedia.org/wiki/Cell_phone