What Is TTY Mode & How To Use it on Your Phone

Are you know what is TTY mode?

TTY is an abbreviation for “Teletypewriter“, an instrument that allows deaf or numerical people to type text messages and communicate over the telephone.

Cell phones in a TTY mode are compatible with this technology and perform similar services even after they are connected to a TTY device.

TTY mode is a telecommunications phone, that allows people who are hard of hearing, deaf, or have language disabilities or speech, to connect by telephone. Your cell phone is consistent with select TTY devices.

What Is TTY Mode?

TTY is a special device that lets people who are hard of hearing, speech-impaired or deaf use the phone to communicate. Then lets them send and broadcast messages to anyone other than talking and hearing. Negotiations for a TTY contact are required at both ends.

History of TTY

The first TTY device was invented in the 1920s and was used primarily by news organizations to transmit messages over telegraph lines. In the 1960s, TTY devices were adapted for use over phone lines and were used by the deaf and hard of hearing to communicate with each other. In the 1970s, the use of TTY devices became more widespread, and the Federal Communications Commission (FCC) mandated that all phone companies provide TTY service for their customers.

Types of TTY Devices

There are several different types of TTY devices, including desktop models, portable models, and software-based TTY programs that can be installed on a computer or mobile device. Portable TTY devices are often used by people who are frequently on the go, while desktop models are typically used in homes or offices. Some TTY devices also come equipped with additional features, such as voice recognition, text-to-speech capabilities, and the ability to connect to the internet.

How To TTY Mode Turn On or Off

What is tty mode

TTY mode turn on or off instructions are below:

  • Go to the home screen.
  • Select the apps.
  • Select the phone from the apps tab.
  • And select the menu from the dialer tab.
  • Click settings.

TTY Mode In Call Settings

A cell phone has many features; it can be complex to find out what they do. It has more mystical options, TTY mode one of them. The TTY summary is used for the teletypewriter, it is a device that allows hearing impaired or deaf persons to connect via the phone by typing text SMS.

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How To Use TTY On iPhone

You can use the teletype, or TTY feature on your phone. The TTY feature helps to contain phone conversations of hearing-impaired people. You can use the iPhone standard TTY devices, from a TTY device to an optional $19 iPhone TTY adapter and then a plug-in plugged into the iPhone on the adapter’s iPhone.


TTY forms complete, VCO and HCO. Full TTY means that there is text-only communication on both sides of the phone call. Full TTY means that there is only text contact on both edges of the phone call. HCO means ‘hearing carry-over’, that you hear a voice coming text reading and you write out the extrovert text.

How To A TTY Device Work

Here is how the TTY device works. The TTY unit is similar to a display screen, a modem, and a laptop computer. The user typed his text message, and the letters are transformed into electrical signs that travel on the cell phone. As electronic technology improved, so was the TTY.

TTY Mode On A Samsung Galaxy Series

When TTY settings are allowed, you can use your phone with a TTY device if you are hearing impaired or deaf. You can turn off TTY on or off your Samsung galaxy easily. Go to the home screen, and click on the phone. Click the menu icon from the keypad tab. Click settings, and tap the call. Tap more settings and TTY mode. Tap one of the following.

Do you know what is TTY mode? TTY is a teletypewriter mode. The TTY feature on your device lets people who can communicate using deaf, speechless, or speech or linguistic people, using a relay service or tt TTY y device. This TTY (teletypewriter) device is using those people.

Advantages of TTY Mode

TTY mode, or teletypewriter mode, is a feature that is available on many devices, including smartphones and computers. It can be used to assist people with hearing or speech impairments by enabling text-based communication. Some advantages of the TTY mode include:

  1. Improved accessibility: TTY mode makes communication more accessible for people with hearing or speech impairments, allowing them to participate in conversations that would otherwise be difficult or impossible.
  2. Privacy: Text-based communication in TTY mode can be more private than verbal communication, which may be overheard by others.
  3. Real-time communication: TTY mode allows for real-time communication, which can be important in emergency situations or in situations where prompt communication is necessary.
  4. Record-keeping: Text-based communication in TTY mode can be easily recorded, making it useful for keeping track of important information, such as phone numbers or addresses.
  5. Universal compatibility: TTY mode is a universal feature that can be used across different devices and platforms, making it a reliable and consistent way to communicate.

Disadvantages of TTY Mode

  1. Slow communication speed: TTY mode communication can be slow due to the time it takes to type and read messages. It may not be the best option for fast-paced or time-sensitive conversations.
  2. Limited characters: TTY devices have a limited number of characters per message, which can make it difficult to convey longer or more complex messages.
  3. Reliance on specialized hardware: TTY mode requires specialized hardware or software to function, which can be expensive or difficult to obtain. This can limit the accessibility of TTY mode for some people.
  4. Not widely used: TTY mode is not as widely used as other modes of communication, such as voice or text messaging, which can make it more difficult to find people who are able to communicate in TTY mode.
  5. Security concerns: TTY mode communication can be intercepted or recorded, which can compromise the privacy and security of the communication. This can be a concern for sensitive or confidential conversations.


What is the meaning of TTY?

TTY is an abbreviation for “Teletypewriter,” which is a device that allows people to communicate by typing and sending text messages over a phone line.

What is the difference between TTY and TDD?

TTY and TDD are both used to refer to devices that allow people to communicate through text messages over a phone line. TTY is an older term that is still commonly used, while TDD is a newer term that is used to describe more modern TTY devices.

Can TTY technology be used for video calls?

No, TTY technology is only capable of transmitting text messages over a phone line. Video calls require a different form of communication technology, such as video relay services or other video conferencing tools.

Is TTY technology still relevant in today’s world?

While TTY technology has been largely replaced by other forms of communication, it still plays a vital role in providing equal access to communication for people with disabilities.

Can I use TTY technology on my smartphone?

Many smartphones today have built-in TTY technology, making it easier for people who are deaf, hard of hearing, or speech-impaired to communicate through text messages.

What is the future of TTY technology?

As technology continues to evolve, it is likely that TTY technology will continue to be replaced by newer forms of communication, such as video relay services and other video conferencing tools. However, TTY technology will continue to play a vital role in providing equal access to communication for people with disabilities.


TTY meaning is a device that has been around for many years and has been used primarily by the deaf, hard of hearing, and speech-impaired communities. While TTY technology has largely been replaced by other forms of communication, such as text messaging and video relay services, it still plays a vital role in providing equal access to communication for people with disabilities. TTY devices have been instrumental in shaping the way we communicate today, and their impact will continue to be felt for years to come.

5 thoughts on “What Is TTY Mode & How To Use it on Your Phone”

  1. Can’t not make a video call…when my TTY mode is enable. My accessibility option is empty…so how can I found TTY mode Option… Please help me to turn off my TTY mode off.

  2. Do I need a TTY device in order to use this feature on my phone? I have a Galaxy Note 4. Use to have a LG Stylo 4 and it had RTT which is what I use to use. I’m mute, so I can hear, just can’t talk. So I was wanting to use TTY HCO.


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