What is a teletype in an Android phone - what is it for?

What is a teletype on a telephone?

What is a teletype on a smartphone?

Many users are wondering what is a teletype on an Android phone? This is understandable, since the teletypewriter (TTY) itself is a specially created typewriter with which it was possible to transmit a message over a cable. Such a description does not fit very well with a mobile phone.

The technology itself appeared in the mid-20th century. It developed, gradually turning into a vast (worldwide) network called Telex. Such technologies were in wide demand among consumers, in particular among representatives of the business sector. Of course, government officials also used closed lines.

Of course, over time, this technology began to become outdated. It was replaced by faxes, telephones, pagers and much more. Moreover, it is not clear about the teletype and what kind of function it is on an Android phone.

Currently, this word refers to a special function in a mobile device intended for people who have health problems, in particular, hearing or speech problems. Using this function, you can send a special message when talking over a telephone line so that the text is converted into an audio recording independently.

In other words, if a person has hearing or speech problems, he can communicate with the other party through incoming calls by entering messages on the keypad, as well as using the screen. The basic operating principle of a teletype is as follows:

1. A person with physical problems enters text on the keyboard, it is translated into a voice message for the other party.
2. If an audio message is spoken, it is converted into a text message.
3. All of the above actions are carried out over a regular telephone line.

Important! How convenient this method of communication is for a person is up to each individual to decide. Some users found this function to be very practical.

The mode on the phone is convenient for those who have hearing problems

Performance

This device is also called a teleprinter . It is an electromechanical device designed to type messages and receive them .

To begin with, the devices communicated with each other through their own special wires, and later their communication became possible thanks to special telephone or telegraph cables, which significantly simplified communication between users of such equipment.

Nowadays, the communication capabilities of such devices have increased even more. The history of the creation of this printing device goes back to the middle of the nineteenth century, when the choice of means of transmitting information was significantly limited.

Further, this device was constantly developed and today it is a device that has a liquid crystal screen .

The main target of modern teletypes is people who have hearing problems. This function is an excellent solution for them when they need to transmit or receive information.

Where to find a teletype on Android

Having understood about the teletype mode in Android, what it is, it is worth paying attention to where and how it can be found on devices. If we talk about modern mobile phones with Android or iPhones, then a similar program is installed on almost any model. Another issue is older phones; teletype is not always found on them.

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The main problem is that if the program is installed on only one smartphone and not on the other, then use will be impossible. You can check whether this function is available in the settings of your own phone. How it's done:

1. Press the button in the form of a blue tube.
2. Open the “Calls” section, click on the icon in the form of three dots.
3. Select the “Settings” function.
4. Click on the “Other Settings” subsection.
5. Find “TTY Mode” (if there is one).

Note! Some cellular companies provide their customers with an additional service called TTY. Essentially it's the same thing. However, it is worth considering that in this situation the interaction between the two operators does not occur directly, but through an intermediary.

With a program like this you can:

• contact your mobile operator. In this case, the number is always on speed dial, which means there are no problems;
• when making a call, the TTY function is selected on the device;
• after the telecom operator is notified of the need to transfer the message to another subscriber, it will be sent in voice format;
• after the phrase is completed, a special character is added at the end.

Such functions of cellular operators are not in great demand among users. The thing is that the price is very high, while the built-in program is free. On the other hand, this may be useful for those users whose smartphones are not equipped with such parameters.

How to enable the feature

How does TTY work on a phone?

Some cellular operators provide teletypewriter services to their subscribers. At the same time, communication between users does not occur directly. TTY technology allows you to:

1. Using speed dial (the number is entered independently), contact the operator’s support service.
2. On your smartphone, during a call, select TTY.
3. Notify the teletype operator so that he can transfer the voice message to another subscriber.
4. At the end of each phrase sent, the GA invitation symbol is sent. It means that the interlocutor has written a message and is ready to receive yours.

Due to the high cost of maintenance and almost zero demand, operators refuse to provide teletype services. Before using a TTY call, find out if your provider supports the technology.

The second, more popular option is when two smartphones support this technology. Information exchange occurs according to the following principle:

1. The first person speaks a sentence, and the system recognizes the text and translates it into written form. The second one reads what the first one said.
2. The second person types a text in response and sends it to the recipient. For the first, the system translates the text into voice, and with the help of a speech synthesizer plays the entire text.

Under what conditions will the function work?

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Of course, the operation of any program on phones requires compliance with certain conditions. In this case, the following are important:

• mobile operator support. No specific or special connection is required in this case. It is necessary to have a permanent (working) line;
• Sometimes a special TTY adapter is required. Everything also depends on the model and manufacturer of the phone. Not all devices can work without special equipment.

Note! The TTY adapter, like any additional item intended for mobile devices, is sold in the store. If you wish, you can order it on the official website of products for Android or iOS.

Setting up TTY and text broadcast

1. Go to Settings > Accessibility.
2. Tap "RTT/TTY" or "TTY". Then you can set the following settings.
   If your iPhone supports dual SIM cards, select a number.
3. Enable Virtual RTT/TTY or Virtual TTY options.
4. Tap Relay Number, then enter the phone number from which calls will be relayed using the Virtual RTT/TTY feature.
5. Turn on Send Now to send each character as you type. Disable this feature to finish composing your message before sending it.
6. Enable the "Answer all calls as RTT/TTY" feature.
7. Enable hardware TTY.

When the TTY or Text Broadcast feature is turned on, the icon appears in the status menu at the top of the screen.

How to enable and disable the mode

As you can already understand, turning on and off the teletype mode is done through the telephone settings. It is enough to follow the path indicated above and (if such a function exists) move the slider to the activated state (on). Accordingly, if the mode needs to be turned off, the slider is moved to the off position.

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What you need to know is that for different models of mobile devices, the names of the same sections may not be the same. So, for example, the “Other settings” parameter may be listed as “Special”, “Additional”, “Other”, etc. The teletype mode basically has this name.

What the user may encounter at the time of connection is that he needs to independently determine the mode format. There are several, which are discussed in more detail below.

Important! If the function needs to be activated on an iPhone, this is done through “Settings”, then the “Basic” section, “Sharing” and “Teletype”. Unlike androids, this program is also available on older models of Apple gadgets.

In addition to the normal connection, the mode has certain settings that are defined by the user. In this case, work is carried out through:

1. Smartphone settings.
2. Next you should go to the “Basic” block.
3. Select "Sharing".
4. Open the “Hearing” subsection.
5. Activate the function by setting the necessary parameters.

Different operating modes

What are the reasons for the unpopularity of TTY

Many modern smartphones hit the market without this feature. There is no need for its presence, so it is quite logical that it is not included in the functionality of phones. Firstly, only a few people use it. Secondly, there are many analogues that are more convenient and better. Even ordinary people with normal speech and hearing abilities prefer to chat on social networks. It's much more interesting and convenient there. So various chats and social networks completely replaced TTY. Thirdly, there is YouTube, which makes it much easier for deaf and mute people to communicate. At a minimum, you can sign words and read lips, which a teletype cannot offer.

And in general, manufacturers are well aware that the TTY function is completely useless, so they do not indicate it in advertising videos and on posters. Even the instructions for the smartphone don’t write a word about it. How does an ordinary user know about it?

Thanks to the rapid development of 3G/4G networks and high-speed Internet via Wi-Fi, there is no need for a TTY. Therefore, various programs for live communication such as Skype or applications for social networks have replaced the teletype, and for a long time. Well, now you know what kind of function the teletype mode is on the phone.

Description of all TTY operating modes

As already mentioned, there are three format options that are installed and used in TTY. They are divided into the following categories:

• Full, or full functionality. In this case, this designation indicates that both parties to the conversation are using text mode;
• HCO. In this case, the party to the conversation will be able to listen to the audio message of the text typed by the other subscriber;
• VCO. The text of the message will be typed using voice, processed into text and sent to the other party.

As you can understand, the modes are quite simple and do not raise any special questions. However, there are a number of features that a user of the program may encounter. The most important:

• The set mode works only unilaterally. In other words, only one person can broadcast information at a time. The second one will have to wait his turn at this time;
• for an outgoing call, the wait lasts approximately 7 rings;
• after the text is typed and sent, a special mark is placed, making it clear to the other party that it can respond.

Should I disable TTY?

You need to disable this feature. It is supposed to drain battery power, although only a little. By default, this mode is inactive, but some users often “walk” through the settings, turning on and off functions whose purpose they have no idea. There are reports on the forums that the phone began to discharge more slowly after disabling this mode. So we recommend turning it off.

However, for informational purposes and just for fun, we recommend trying to communicate with someone in TTY mode. This may seem funny. Although sometimes even an adapter is not enough. The function must also be supported by the mobile operator.

How to use a teletypewriter

Using a teletypewriter is not as difficult as it might seem. Difficulties and problems may arise only at first for those who are encountering this function for the first time. In addition, there are some errors with certain phone models.

For example, on smartphones from Sony, users often encountered the fact that the mode turns on spontaneously while listening to music. At the same time, there are significant malfunctions in the operation of some programs and widgets. If you restart the device, sound playback may disappear. Unfortunately, there are no specific solutions to these problems at the moment.

Note! There may be interruptions in operation if you need to connect to a teletypewriter using a TT adapter. Usually these are purely mechanical faults that can be resolved on your own.

There are several options that can be taken in such a situation:

• blow out the nest. Accumulated dust and small debris interfere with normal operation;
• reboot the device;
• roll back the phone to factory settings.

Problems also arise for those who use iPhones. Very often this manifests itself in the fact that the user simply cannot make an outgoing call or answer an incoming one. In this case, it is recommended to simply disable, reboot, and then re-enable the phone function.

Using the mode may be accompanied by glitches

Is TTY functionality needed on mobile devices? The question is not easy. Some may indeed find it useful, but most likely not. It is for this reason that some manufacturers are thinking about removing it completely. Perhaps in the future a more productive system will be developed for people with disabilities.

What it is

Teletype or TTY is an electromechanical printing machine that transmits messages via cable. It became widespread in the twenties of the twentieth century, but was gradually replaced by new technologies. In the photo you can see what she looked like:

And now, in the present tense, teletype - what is it on the phone, why is the option needed? It is intended for full communication between people who have certain hearing difficulties (congenital and acquired).

Removing communication restrictions is the main goal of this function:

• Transfer of information;
• Receiving data.

We'll talk about the operating principle below. In the meantime, we note that almost all modern phone models are equipped with a similar feature - you need to find it in the settings and activate it.

Setting up TTY in Android

1 The first step
is to turn on the phone, unlock its screen and go into call mode. To do this, you need to click on the icon (icon) with a telephone handset depicted on it. In some models, you can go to it directly from the lock screen by swiping (touching the display with your finger) in the direction from the lock icon to the handset icon.

2Next you should find the words “Calls” on the screen

and click on it. As a result, a list of previously called subscribers will be displayed. After this, you should call up the menu, for which use the button with the image of a rectangle located under the screen.

3As a result of pressing it, a bar menu will be displayed

, in which you should select
“Settings”
.
By selecting it, you will receive a new menu on the screen with a large number of items, one of which will be “Call settings”
. To find it, you may need to scroll through the list by swiping from bottom to top.

4Once again you will be offered a new list of menu commands, which will include a line with the value “TTY Mode”

.
Additional explanation will indicate the status of the option. The value
(TTY-off) will indicate that it is completely disabled.

To change the status, you just need to make one tap (touch the screen with your finger) on this command and select a new value.

There are four available in total

:

• TTY off
• TTY full
• HCO TTY
• TTY VCO

The last two commands correspond to special user requirements

.