Rtt/tty
My rtt/tty button is off but when I call someone it keeps opening and interrupting my call. How do I remove it or disable it?
iPhone 8 Plus, iOS 13
Question marked as
- Turn off Answer All Calls as RTT/TTY.
- Turn off Hardware TTY.
RTT is a more advanced protocol that transmits audio as you type text. iPhoneprovides built-in Software RTT and TTY from the Phone app—it requires no additional devices. If you turn on Software RTT/TTY, iPhone defaults to the RTT protocol whenever it's supported by the carrier.