What's a TTY? What's a TDD? What's a relay system?
A TTY is basically the same thing as a TDD. The phrase TTY (or Teletype device) is how the deaf community used to refer to the extremely large machines they used to type messages back …
Telecommunications device for the deaf - Wikipedia
The entire configuration of teleprinter machine, acoustic coupler, and telephone set became known as the TTY. Weitbrecht invented the acoustic coupler modem in 1964.
What Is TTY Mode? How Does It Work on Cell Phones?
While a TTY machine may sound a lot like text messaging, its actual functions are more seamless. TTY machines allow users to continuously communicate as part of one …
What is a TTY? (And Why Some People Call it a TDD)
Dec 7, 2025 · “TTY” is short for TeleTYypewriter —a machine originally used in newsrooms to transmit typed messages. Deaf innovators adapted this technology so typed messages could …
Buy Text Telephones / TTY Online
A TTY is a telephone communication device for people who are profoundly deaf. TTY stands for Text Telephone. It is also sometimes called a TDD, or Telecommunication Device for the Deaf. …
Discount TTYs & Teletype Machines for the Hearing Impaired
TTY is an acronym for Tele Typewriter, sometimes referred to as a Teletype Machine. As one of the most commonly used accommodations by people who are unable to understand speech …
7 FAQS about Teletypewriter (TTY) Devices
A TTY (teletypewriter) device is a text communication tool designed for individuals who are deaf, hard of hearing, or have speech impairments. It features a keyboard and screen, allowing …
NAD - National Association of the Deaf
More than 100 years after the invention of the telephone, deaf and hard of hearing people could finally make a telephone call to anyone. Today, TTY relay services, the original and now …
Ultratec TTY Text Telephones for the Deaf and Hard of Hearing
Learn about Ultratec's TTY text telephones and accessories, including TTY printing paper. Perfect or the Deaf and Hard of Hearing!
TTY & TDD Phone Devices for Deaf | Teletypewriters - Diglo
Looking for TTYs? Whether you're deaf, late-deafened, or trying to meet accessibility requirements, we've got what you need. Free shipping & returns!