small symbol on top right hand corner of the phone.
iPhone 5s, iOS 8.2
Posted on Mar 18, 2015 12:50 AM
Q: hi i want to turn off TTY
Hello fullonmovers,
Thanks for using Apple Support Communities.
To turn off TTY, simply do the following on your iPhone.
Choose Settings > Phone to turn TTY on or off.
iPhone: Understanding the TTY symbol in the status bar - Apple Support
Take care,
Alex H.