• 1971 – IRS allows cost of TTYs and related equipment as tax deduction; first national conference of TDI agents at Gallaudet College: TTY becomes tool of legislative advocacy

  • 1972 – 2,500 TTYs installed throughout United States

 

    • Homes

    • Rehabilitation centers

    • Transportation authorities

    • Libraries

    • Police, fire, and emergency call centers

  • 1973 – Rehabilitation Act passes

 

  • New efforts to produce lighter weight, quieter, portable TTYs - $600-$1,000