What Is TTY Mode? How Does It Work on Phones?

    TTY Mode

    Briefly, TTY mode allows people with hearing or speech disabilities to use text messaging to send and receive messages over the internet. In the past, a text message was restricted to one line, limiting the number of people who could receive it. However, in the recent era, there have been significant advancements in the field of text messaging technology, making it possible for anyone to send as many messages as they want. In fact, there is even real-time IP technologies now available to make online communication even more accessible. Still, both of these require a separate data plan and/or a wireless phone line.

    A lot of people have trouble hearing or speaking over the phone, so TTY mode was developed to allow those who have difficulty receiving or replying to voice to communicate over the internet using a device that has a small keyboard and display. TTY devices are able to access the internet using a standard telephone handset, as well as other common devices such as mobile phones, pagers, and wireless modems. A typical TTY device looks like a regular cellular telephone but has a dedicated keyboard for inputting messages. When you press the red telephone key, which typically indicates that you are calling, the TTY device will dial the number on your command list and then present a clear display of the words or numbers sent to the other party on the other end.

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    TTY Mode on a Cell Phone

    Text telephone voice is a mode that is used by people who are hard of hearing, deaf, or speech-impairing. The term “TTY” is an acronym that stands for telephone adapter, which is needed in order to make a call on a conventional phone. While TTY devices used to be designed only for the use of landline phones, modern-day TTYs are used with both cell phones and landlines. Basically, a TTY is a device that is installed in a person’s home or office and enables him or her to make and receive telephone calls. In simple words, a TTY is a telephone that has a microphone and speaker that enables the user to hear the other party on the line.

    There are basically two different kinds of TTY modes. There are the full-service telephone messaging mode and the private-line TTY mode. In the full-service TTY mode, the user can choose from a variety of options such as make, talk to, dial tone, and enter call waiting. This allows the user to be able to speak to the other party and send him or her messages that the caller would normally be able to do. In the private-line TTY mode, the user can only communicate with another person who can hear and reply. This mode is also commonly used for the hearing impaired.

    How TTY Mode can be used on a Cell Phone

    what is TTY mode on phone

    what is TTY mode on phone is a very common question. TTY Mode has been used for years as an option for those who cannot receive or speak clearly using regular telephones. As the use of TTY Mode in cell phones grew, companies began to provide TTY devices and services to whom could not otherwise use their regular phone lines due to physical or geographical limitations. Today, TTY Mode is available on all new and used cell phones, and those who do not currently have this type of service can choose to purchase a new phone that has this option built-in. Those who already own a cell phone with TTY capability can choose to continue using their existing phone with TTY Mode or to purchase a special adapter so that they can use their TTY device to communicate with someone who is unable to speak through a typical digital telephone line.


    A TTY device is basically similar to having a speech-impaired person to speak through a regular device. The difference is that the user is able to convey words and phrases clearly and understands how they are said. This makes easier for them to process information and to communicate with others. The availability of TTY Mode on new and used devices is especially important for those who may be hard of hearing or who have a hearing problem that makes spoken language difficult to understand. When we use TTY device  solution to these needs, it can make communicating with someone else much easier. Because TTY is capable of translating speech to text and vice versa, it also provides an environment where people with hearing disabilities can communicate with those who cannot hear.