| Results found for: TDD/TTY |
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| TDD/TTY |
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(Telecommunications Device for the Deaf/TeleTYpewriter) A user terminal with keyboard input and printer or display output used by the hearing and speech impaired. 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.
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Entries before TDD/TTY
TCS
TCSEC
TCU
TDD
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Entries after TDD/TTY
TDES
TDM
TDM environment
TDM network
TDM switch
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