• By building in TTY functions into today’s cellphones, it would be possible to call 9-1-1 without separate TTY.

  • But this is not required and has not happened due to lack of market.

  • Probably the shortest path to nationwide 9-1-1 accessibility using current technology

    • Will be good for 10 years, depending on location

    • Does not require phased implementation as PSAPs already have TTY