Telecommunications Relay Service, also known as TRS, Relay Service, or IP-Relay, or Web-based relay services, is an operator service that allows people who are Deaf, Hard-of-Hearing, Speech-Disabled, or DeafBlind to place calls to standard telephone users via a keyboard or assistive device. Originally, relay services were designed to be connected through a TDD (TTY) or other assistive telephone device. Services have gradually expanded to include almost any real-time text capable technology such as a personal computer, laptop, mobile phone, PDA, and many other devices. The first relay service was established by Converse Communications of Connecticut in 1974.
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