Deaf orthodontist Doctor James C Marsters of Pasadena, California shipped a teletype machine to deaf physicist Robert Weitbrecht in Redwood City, California and requested a way to attach it to the telephone system so that phone communication could take place.
TTY or TDD Telecommunications for the Deaf
The TTY was first developed by Robert Weitbrecht, a deaf physicist. He was also a ham radio operator, familiar with the way hams used teleprinters to communicate over the air.
