(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.

Standard Name: MemberPhoneTTYTDD

Display Name: Member Phone Tty/Tdd

Group: --

Data Type: String

Suggested Maximum Length: 16

Suggested Maximum Precision: --

Synonyms(s): AgentPhoneTTYTDD

Field (Element) Status: ACTIVE


Record ID: 01e7b33

Lookup Status: --

Lookup: --

Payloads: --

Spanish Name: Teléfono TTYTDD de Miembro

French-Canadian Name: Numéro de l’ATME/ATS du membre

Status Change Date: AUG 09 2017

Revision Date: JAN 17 2017

Added in Version: --


  • <1% of Systems (0/17)
  • <1% of Organizations (0/501)

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Page Revision Date: Nov 08 2023

Form: OtherSimple