Introduced in the early 1900s, rotary phones were commonly used from the 1920s until the 1960s, when dial phones were gradually replaced with push button phones (see Touch-Tone). THIS DEFINITION ...

A frustrated Justine Haupt came up with an unorthodox solution: she designed and built a mobile phone with a rotary dial that looks like it's 40 years old. There's an entire generation that ...