History of mobile phones
A cellular telephone switching plan was described by Fluhr and Nussbaum in 1973, and a cellular telephone data signaling system was described in 1977 by Hachenburg et al.
Thomas A. Watson
Thomas A Augustus Watson (January 18, 1854 – December 13, 1934) was an assistant to Alexander Graham Bell, notably in the invention of the telephone in 1876. He is best known because, as the recipient of the first telephone call – although coming from just the next room – his name became the first words ever said over the phone. "Mr. Watson – Come here – I want to see you," 
Bell said when first using the new invention, according to Bell's laboratory notebook. There is some dispute about the actual words used, as Thomas Watson, in his own voice, remembered it as "Mr. Watson – Come here – I want you," in a film made for Bell Labs in 1931 which is referenced below in "The Engines of our Ingenuity."