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711 for TTY-Based Telecommunications Relay Service
Dialing 711, both voice and TTY-based TRS users can initiate a call from any telephone, anywhere in the United States, without having to remember and dial a ...
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Telecommunications device for the deaf - Wikipedia
A telecommunications device for the deaf (TDD) is a teleprinter, an electronic device for text communication over a telephone line, that is designed for use ...
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Do TTY, TDD, and TT mean the same thing? | DO-IT
Apr 9, 2021 — Yes. The TTY (TeleTYpe), TDD (Telecommunications Device for the Deaf), and TT (Text Telephone) acronyms are used interchangeably to refer to ...
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