What Is Real-time text (RTT) CALLING On Android?

RTT calling is a phone service that allows people receive and send messages during a call. Real-time text features instant text and group chats with your friends and family. With RTT call on Android, you can be sure you’re always connected to your loved ones!

What is RTT call on android?

RTT is a type of voice call that uses text messages as the main form of communication between two people. This means that instead of talking, you and your partner can type back and forth as quickly as possible. It’s perfect for situations where you don’t want to waste time on small talk.

If you use an Android smartphone. You may have noticed a new setting in your phone calling options: Real-time text (RTT). The feature is designed to improve communication for deaf or hard-of-hearing people by allowing them to read what the other person is saying during a call in real-time.

Both parties must have an RTT-compatible Android device and be connected to a Wi-Fi or cellular network to use a real-time text call once you’ve made or answered a call using the RTT setting.

You’ll see a new keyboard that allows you to type messages which will appear instantly on the other person’s screen. This way, you can convert even if you can’t hear the other person.

You might be wondering why you would want to use RTT calling on Android. However, several benefits make it worth considering. First, it’s great for situations where you can’t speak, such as when you’re in a meeting or public place. Also, it means that your conversation is more private since only the two of you can see what’s being said.

Rtt call

What is the difference between RTT and TTY?

When you make a phone call, you might notice an option for RTT or TTY. But what does that mean?

RTT stands for Real-Time Text, a way to send text messages during a phone call in real-time. It’s similar to instant messaging but designed specifically for phone calls.

TTY stands for Teletype, which is a text-based communications system. It’s often used by someone who is deaf or difficult of hearing because it allows them to communicate by typing back and forth.

RTT and TTY use text messages to communicate, but they work differently. For example, the real-time text is designed for real-time conversations during a phone call, while TTY is best suited for asynchronous conversations.

How to Use RTT calling on Android?

If you’ve ever used TTY Calling on your Android phone, then you’re already familiar with Real-time text. RTT is a text-based communication method that allows individuals who are deaf, difficult of hearing or have speech disabilities to communicate in real-time.

Unlike TTY call, which requires a TTY machine, real-time text works with any phone that supports the technology. All you need is an RTT-compatible device.

You’ll first need to find an RTT-compatible device or install the app to use RTT on your Android phone. Once you’ve found the device or the app that you want to use, install it or turn on the RTT on your phone.

Let’s say that you installed an RTT app, please open it and follow the instructions for an account. Once you’ve created an account, you’ll be able to start using real-time text to communicate with others.

To make an RTT call, open the app and find the person you want to call. When you’re prepared to begin the call, tap on the “Call” button. The person you’re calling will then receive a notification that they’re being called via RTT. So, let’s see how to enable and install it on an android phone.

Related article: What is a cellular mobile network not available for voice calls?

How to Enable and Install RTT on your phone?

This is the best way to improve communication with hearing- or speech-impaired individuals. In addition, you may consider using real-time text (RTT) calls on Android.

As we said previously, RTT calling is a phone service that allows text to be typed and transmitted in real-time, similar to a conversation. This can be a perfect option for those with difficulty hearing or speaking on the phone.

Enabling the real-time text on Android is pretty simple.

First, ensure you have a compatible device – an iPhone running iOS 11 or later or an Android device running Lollipop 5.1 or higher.

  • Open the Phone app and go to Settings
  • Calls. Scroll down to the Real-time text (RTT) section
  • Toggle the switch to On
  • Once RTT is enabled, you’ll see a real-time text icon next to the input field in the Phone app whenever you make a call
  • Tap this icon to start using RTT

How to make a call with real-time text (RTT)?

As we said before, you must have a phone compatible with RTT calling, and you can make calls using real-time text. To make an RTT call:

  1. Make sure you’re in an area with good cell reception
  2. On your phone, find the Phone app
  3. Tap the Keypad tab, then enter the 10-digit phone number you want to call
  4. Tap the RTT/TTY icon next to the phone number field. The icon looks like a series of squares with an “x” in the middle
  5. If prompted, select whether you want to use RTT or TTY for the call
  6. Tap Call. The person you’re calling will notify you that the call is coming through as an RTT call.

When the person answers, start typing your message in the text field at the bottom of the screen. The person you’re calling will see your message appear on their screen.

Similar topic: What is a restricted call on Android?

How to turn off RTT calling on Android?

There are a few ways to stop real-time text calls on your phone. One way is to turn off the RTT feature in your Android settings. This will prevent any RTT calls from coming through, but you will also be unable to make any RTT call yourself.

Another way to stop RTT calling is to block the number on your android. This can easily be done in your phone’s call blocker settings. This will stop the calls from coming through, but you can still make RTT calls yourself if you need to.

The last way to turn off the RTT calls is to contact your carrier and ask them to disable the feature for your account. This will control the service from making or receiving any RTT calls, but it may also impact other accounts’ features, such as voicemail.


When you make a call, real-time text service will no longer be an option. If you want to re-enable the RTT calling service anytime, just follow these same steps and toggle the switch back to the ON position.

See also: How to find who called you from this phone number?

Final Thoughts

Real-time text (RTT) calling is a new feature on Android that allows you to place calls using real-time text instead of voice. This is especially useful for people who are hard of hearing or deaf, as it allows them to communicate more quickly over the phone.

If you’re interested in trying out RTT call on your phone, all you need is a compatible Android device and an app that supports it. So give it a trial today and see how much easier it is to stay connected with your loved ones.

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About The Author

As a mobile technology expert, I focus on troubleshooting iPhone and Android devices to provide efficient solutions for various issues. I have a keen eye for detail and a passion for problem-solving, assisting users with software repairs, app fixes, and more to simplify smartphone complexities.

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