TTY & TDD and its uses

TTY and TDD enable hearing-impaired and speech-impaired individuals to communicate over the telephone. TTY and TDD work in conjunction–there is no distinguishing difference. TDD & TTY: TDD, or Telecommunications Device for the Deaf, is a software program that enables deaf or mute individuals to communicate over the telephone with TTY devices. TTY–or telephone typewriter, teletypewriter…