What is rtt on iphone turn off?

When you turn off RTT (Real-Time Text) on an iPhone, you are disabling the feature that allows you to send text messages in real-time during a phone call. RTT is a feature that can be especially useful for individuals who are deaf, hard of hearing, or have speech disabilities.

To turn off RTT on an iPhone, follow these steps:

1. Go to the Settings app on your iPhone.
2. Scroll down and tap on "Accessibility."
3. Tap on "RTT/TTY."
4. Toggle off the switch next to "Software RTT/TTY."
5. Confirm that you want to disable RTT.

Once you have disabled RTT on your iPhone, you will no longer be able to send real-time text messages during phone calls. It is important to note that RTT is only available on certain iPhone models and may vary depending on your carrier. If you need assistance or have further questions about RTT on your iPhone, you can contact Apple Support for more information.