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.
Invention of the telephone
"Scientific American" described the three test calls in their September 9, 1876, article, "The Human Voice Transmitted by Telegraph". Historian Thomas Costain referred to the calls as "the three great tests of the telephone". One Bell Homestead reviewer wrote of them, "No one involved in these early calls could possibly have understood the future impact of these communication firsts".