How To Turn Off Rtt On Iphone

By | 03/10/2022

Things to know before

using RTT or TTY on iPhone:

  • It’south only available for specific regions and carriers in the
  • Y’all’ll need iOS 10 or later.
  • Turning on Answer All Calls as RTT/TTY, yous won’t get voice calls anymore
  • If you can’t hear sound during a telephone call, click the microphone push button to allow vox and text simultaneously.

Apple tree incorporates a great accessibility characteristic to help people with speaking or hearing difficulties. It enables users to text the receiver on-telephone call using a congenital-in teletypewriter (TTY) or existent-fourth dimension text (RTT) on iPhone without any extra hardware.

The recipients tin can read the message immediately, as RTT (a more than advanced protocol) instantly transmits your text into a voice message. Notably, you tin can only use RTT on iPhone using iOS 10 and later on, provided your carrier supports the characteristic.

And then, let’southward know the steps to turn on/off RTT or TTY on iPhone.

  • What is RTT and TTY on iPhone?
  • How to fix and use RTT on iPhone
  • Make or answer RTT/TTY calls

What is RTT and TTY on iPhone?

RTT is a built-in accessibility feature on iPhone that provides a message box to send texts while making or receiving calls. It too uses automated transcription to convert sound to text and vice-a-versa.

On iPhones, RTT/TTY doesn’t demand whatsoever extra hardware. Just if you have a real teletypewriter device, y’all may connect it through an iPhone TTY adapter. Interestingly, the characteristic besides maintains the text records, so yous can get through the conversation at a later date as well.

Notably, software and hardware-based RTT/TTY calls are discipline to regular vocalisation call tariffs and rely on your network configuration. Different operators conduct dissimilar variants of TTY/ RTT iPhone calls.

RTT during a call
Source: Apple Support

How to gear up and employ RTT on iPhone

  1. Open up
    on your iPhone.
  2. Then become to
    Full generalAccessibility.
  3. Tap
    or TTY from the Hearing section.
    If you use a dual SIM, select the SIM.
  4. Toggle on
    Software RTT/TTY
    Software TTY.
  5. Add
    Relay Number
    of communication assistants.
  6. In the
    Send immediately


    • Turn on
      – To transport the bulletin as you type.
    • Plough off – To complete the message before it is sent.
  7. Toggle on
    Answer All Calls
    as RTT/TTY.
  8. Lastly, actuate
    Hardware TTY
    to use an external teletypewriter device to receive and make RTT/TTY calls.
Enable or Disable RTT/TTY in Accessibility Settings
Enable or Disable RTT/TTY
Source: Apple Support

Notably, when the RTT or TTY is turned on, you lot’ll see a special icon in the status bar.

How to plough off RTT on iPhone

  1. Launch
    Settings → Accessibility → RTT/TTY.
  2. Toggle off the
    Software RTT/TTY

Make or answer RTT/TTY calls

  1. Open up your
  2. Tap the contact’s phone number.
  3. Cull between
    RTT/TTY Telephone call
    and RTT/TTY Relay Telephone call options from the popup.
  4. When the call connects, select
    Whenever available, iPhone defaults to the RTT protocol.
  5. A chatbox will open. Enter your text in that location, aforementioned as SMS.
Making or Receiving RTT/TTY relay calls
RTT/TTY Relay Telephone call
Source: Apple tree Support

Your receiver volition encounter your message as y’all enter it if yous choose to
Ship Immediately
in Settings. If it’south disabled, complete your text and printing the
symbol. To transmit audio simultaneously, tap the mic icon.

Furthermore, if y’all’re receiving an incoming RTT call (even if you oasis’t turned it on), tap the RTT push to answer the call with RTT.

The best part of RTT on iPhone is some congenital-in shortcuts like SK for “Ready to hang up” and GA for “Go alee.”


Q. How to find the transcription of a prior RTT/TTY call?

Go to
Telephone →
Recents. To read the recorded text, click on the
i symbol
next to the call history. Here you will see a typewriter symbol. Tap on it to get the call’s transcription.

Q. How can I connect the iPhone to a TTY device?

Use the iPhone TTY Adapter to connect your iPhone to your TTY device if you enable Hardware TTY in Settings. Your iPhone will apply the Hardware TTY by default for incoming calls.

If Software TTY is as well enabled, consult the manual with the TTY device in question for instructions on how to use it.

So, that’s all, folks!

The built-in RTT/TTY feature of the iPhone is super helpful for people who face problem in conversational calls and have to rely on advice help. If yous accept whatsoever queries, let me know in the annotate section below.

Read more than:

  • Best accessibility tips for iPhone users
  • How to Use the Accessibility Shortcut on iPhone and iPad
  • iPhone keyboard lag in iOS 15? How to set up information technology

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