A ____________ is a device which gives the ability to receive calls and communicate with citizens who are hearing impaired and/or unable to verbally communicate, through typing instead of speaking.

A ____________ is a device which gives the ability to receive calls and communicate with citizens who are hearing impaired and/or unable to verbally communicate, through typing instead of speaking.

• A. DTC
• B. TTD
• C. FRS
• D. TDD

Answer: (D)

The concept being tested is assistive communication technology that enables real-time conversations over the telephone for people who cannot speak. The device described is a Telecommunications Device for the Deaf, commonly called a TDD (or TTY). It connects to a telephone line and uses a keyboard and display so the user can type messages to be transmitted as text, with responses read back in text as well. This setup lets a deaf or hard-of-hearing person participate in calls by typing instead of speaking, often with the help of a relay service for broader communication. Other options refer to different technologies not specifically built for this type of two-way phone conversation, so they don’t fit as well.

The concept being tested is assistive communication technology that enables real-time conversations over the telephone for people who cannot speak. The device described is a Telecommunications Device for the Deaf, commonly called a TDD (or TTY). It connects to a telephone line and uses a keyboard and display so the user can type messages to be transmitted as text, with responses read back in text as well. This setup lets a deaf or hard-of-hearing person participate in calls by typing instead of speaking, often with the help of a relay service for broader communication. Other options refer to different technologies not specifically built for this type of two-way phone conversation, so they don’t fit as well.