Definitions for "Relay service"
Enables text telephone (TTY) users to communicate with non-TTY users by way of a relay service communications operator. The ADA mandated a nationwide relay service to be completed in 1993.
Sometimes called dual-party telephone relay service. Enables text telephone users to communicate with a non-text telephone user by use of a relay service communications assistant. The ADA mandated a nationwide relay service by 1993.
a real-time system which translates in both directions between text and voice and voice to text