How To Make and Receive Real Time Text On iPhone And Mac

From iOS 11.2, Apple allowed iOS and MacOS users to make and receive RTT (real-time text) calls, but in the latest updates, Apple has already enabled the RTT protocol for Wi-fi calling.

The new update is released in iOS 12.1.1 and macOS Mojave 10.14.2 versions. Along with that, Apple has also added other features like new haptic touch and expanded eSIM support in iOS 12.1.1 update.

Real-time text is used when you want to make a Wi-Fi call from your iPhone, iPad or Mac. Many iOS and Mac users might not know this feature on their devices, so they would like to get more information about this RTT.

Real-time text, which is a kind of accessibility protocol, allows you to communicate in real-time. When you enter a message on your device, the receiver will see your message. Unlike other typing indicator platforms, the Real-time text will the message text when typing it.

How to Use Real-time Text (RTT) on  both iOS and Mac

Set up Real-Time Text on iPhone and iPad

This feature works on iPhone 6 and later devices that are subscribed to Verizon carrier plans. Another thing you should note that you need to pay for standard voice call rates.

  • OpenSettings app on your iPhone or iPad.
  • Tap on General>
  • Scroll down to HEARING section and tap on RTT/TTY. Toggle the Software TTY switch; and make sure to enable Send Immediately


Once you enable this feature, you will see an icon in the status bar.


Make an RTT Call on iPhone/iPad

  • Launch Phone app on your iOS device.
  • Select the contact you want to make an RTT call.
  • Tap on Call icon; and you will see three options available, including Receiver’s number, TTY Call, and TTY Relay Call.
  • You can tap on TTY Call or TTY Relay Call.
  • When the receiver takes your call, the TTY icon will be automatically enabled on your phone screen. Simply tap on it to start sending the real-time text.

RTT call offers shortcut phrases as well. When the receiver picks up your call, you just send “Hi,” and wait for a few seconds. There will be two shortcuts for you choose: SK (ready to hang up) and GA (go ahead). Select either option.

Switch to RTT After Making a Voice Call

If you want to switch to RTT call after you make a voice call, you can do it by following the simple method below on your iPhone/iPad.

Not that during the voice call, you can also upgrade to RTT call just by tapping on “Use RTT” icon near the red call disconnect button.

  • Wait for a few seconds and the mute icon will then change to
  • Now, simply tap on Use RTT to open the text conversation.


Once you upgrade the voice calls to RTT, the microphone will keep active. You can also tap on the microphone icon to disable audio for the call.

Receive or Answer an RTT Call

If the receiver has already turned on RTT/TTY on his phone as well, there will be an Accept icon appearing in place of Answer button.

  • Tap on Accept button to answer your call.
  • Next, choose RTT to switch the call to a text conversation.

End an RTT Call on iPhone or iPad

If you no longer want to receive an RTT call on your iPhone/iPad, you can then end it up.

  • From the RTT screen on your device, tap on Back in the upper left corner.
  • Next, tap on call disconnect

That’s how to use RTT feature on your iOS devices. How about Mac? How can you set up RTT on Mac? All you need is to follow the below steps.

Also see: Hidden Accessibility Features To Make iPhone Easier

How to Set Up RTT on MacOS

Setting up RTT on MacOS devices is not difficult as well, simply follow these below steps to set it up on your computer.

  • On your Mac, click on the Apple icon in the top left corner and then select System Preferences from the drop-down menu.
  • Next, click on Accessibility; you will see the last icon in the dialog box opening on your Mac.
  • Now, click on RTT in the sidebar and then check the box next to “Enable RTT.” You can also tick on the “Send Immediately” Once you check “Send Immediately” to enable, you can then send characters as you type them. You can also disable this feature to complete message before sending it. However, make sure to enter the U.S. RTT relay number: 711 to help it work.


You can now start making an RTT call on Mac.

Make an RTT Call from Mac

To make an RTT call, you need FaceTime on your Mac. But, you can initiate a call from your Contacts or FaceTime.

From Contacts App

  • Launch Contacts app on Mac.
  • Find the number you want to make a call.
  • Click on near the number.

When the receiver picks up your call, click on RTT to start a real-time text message.

From FaceTime App

  • Open the FaceTimeapp on your Mac.
  • Choose the contact from the sidebar.
  • Click on an audio button next to the contact.
  • There will be a pop-up menu there, and you simply select between RTT Call or RTT Relay Call.

When the receiver answers your call, click on RTT to start a real-time text message. During your text conversation, you can also use the microphone on your Mac if available.

Click on  to mute the microphone. You can enter your message and then hit Return key or send the message by clicking on the arrow button. As you have already enabled “Send Immediately” in RTT preferences, the receiver will see your message when you type it.

If you want to hide conversation, simply click on RTT. However, you will not be able to see messages sent by another person after the conversation is hidden. To bring it back, click on the RTT icon again.

Answer RTT Call on Mac

  • When somebody is making a call to, click on Accept to answer it.
  • Click on RTT to start text message in real time.

If you want to end the call, simply click on END.

That’s how to use RTT on both iOS and Mac devices. If you have any question, let’s know in the comment below.


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