How to Troubleshoot RTT Randomly Activating on Android & iPhone

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Follow these easy steps to fix RTT that turns on by itself
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Are you wondering why RTT randomly turns on for some calls? Although designed to turn real-time communication into text-based communication to help users who are deaf or hearing impaired, this feature can get annoying when it glitches. Follow this troubleshooting guide to fix RTT when it turns on randomly on both Android and iPhones.

Easily Fix RTT When It Randomly Turns On

When RTT randomly turns on when you're making or receiving a call, restart your phone to get rid of any temporary glitches. Turn off Wi-Fi and Bluetooth to make sure those features aren't the problem, then see if the other person isn't using RTT; if they are, you'll see it activated on your end.

1

Restart your phone.

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    Your software can glitch to activate RTT for calls even if you've turned it off.
    • If you have an Android, press and hold the side button and then drag the slider to power off your phone. Press the side button again to turn it back on.
    • If you have an iPhone, press and hold the side button and a volume button, drag the slider to power off your phone, and then press the side button again to turn your phone on. For iPhones with a Home button, press and hold the side button, drag the slider to power off, and then press the side button again to turn it back on. [1]
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2

Turn off Wi-Fi or Bluetooth.

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    If you're using Wi-Fi, turn it off to use cellular data. Alternatively, if you're connected to something using Bluetooth, disable that connection and turn it off.
    • You'll find the Wi-Fi icon and Bluetooth icons in the Quick Settings panel on Android and in Control Center on iPhone. Tap the icons to turn those features off.
3

See if the other person is using RTT.

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    In that case, RTT will seemingly turn on randomly for one caller and no one else.
    • There's no way to turn off RTT if the other caller is using it.
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4

Update your phone's software.

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    Stay bug-free by keeping your phone up-to-date! If your phone is too old to update, you might need to buy a new phone to keep RTT disabled.
    • For Android , go to Settings > System > System update > Download/Install .
    • For iPhone , go to Settings > General > Software Update > Download/Install .
5

Check third-party dialers.

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    If you have an alternative dialer that you downloaded from the App Store or Google Play Store, turn off RTT inside that app's settings, or uninstall the app.
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6

Delete RTT calls from call history.

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    Users on reddit [2] claim that doing this works for both iPhone and Android.
    • Open your Phone app, click the History tab, and delete calls that have the RTT symbol next to them (it looks like a phone receiver over a grid of squares).
    • Here are more detailed steps to do this in Android and here's how to delete calls from call history on iPhone.
    • The RTT settings should be erased and no longer activate in calls.

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      References

      1. ↑ https://support.apple.com/guide/iphone/turn-iphone-on-or-off-iph841379c3d/ios
      2. ↑ https://www.reddit.com/r/iphonehelp/comments/mgqd2h/rtt_randomly_turns_itself_on_during_calls_with/

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