TDD/TTY

(redirected from TTY relay)

TDD/TTY

(Telecommunications Device for the Deaf/TeleTYpewriter) A user terminal with keyboard and printer or keyboard and screen used by the hearing and speech impaired. Introduced in 1964, the device contains a modem and is used over a standard analog phone line. If a recipient does not have a corresponding terminal device, TDD/TTY users dial a relay service composed of operators who receive the typed messages, call the recipients and speak the messages to them. The operators also type the responses back to the TDD/TTY user. See VRS.
References in periodicals archive ?
AT&T (NYSE: T) announced yesterday that it is to offer TTY Relay Services to the deaf, hard of hearing and speech challenged community of California after receiving a share of the traditional California Telecommunications Relay Services contract this week.
The company said that the contract, which is for three years with options to extend it further, is for TTY Relay Services and does not cover IP based or video based relay services.
The contract award for AT&T, financial details of which were unavailable, covers TTY Relay Service only and does not involve areas such as IP-based or video relay services.
Call: 687-5555 - for TTY relay service, use (800) 735-2900
STS is provided through the TTY relay in each state.