Telecommunication
The conventional telephone was invented independently by Alexander Bell and Elisha Gray in 1876. Antonio Meucci invented the first device that allowed the electrical transmission of voice over a line in 1849. However Meucci's device was of little practical value because it relied upon the electrophonic effect and thus required users to place the receiver in their mouth to "hear" what was being said. The first commercial telephone services were set-up in 1878 and 1879 on both sides of the Atlantic in the cities of New Haven and London.
Jesse Russell
He holds patents and continues to invent and innovate in the emerging area of next generation broadband wireless networks, technologies and services, which is frequently referred to as 4G. Russell was inducted into the United States' National Academy of Engineering during the Clinton Administration for his innovative contribution to the field of Wireless Communication. He pioneered the field of digital cellular communication in the 1980s through the use of high power linear amplification and low bit rate voice encoding technologies and received a patent in 1992 (US patent #5,084,869) for his work in the area of digital cellular base station design. Although no one person invented the cell phone, Jesse Russell was one of the key people to the invention of the modern cell phone.