Career Leadership Technology 7 Facts You Should Know about Shirley Ann JacksonSamara LynnJanuary 25, 2017March 13, 2019 by Samara LynnJanuary 25, 2017March 13, 201923216 Here's a list of seven interesting facts about Dr. Shirley Ann Jackson, the black woman who invented Caller I.D. and Call Waiting.... Read more