Apple iPhone 6 Plus
Apple iPhone - Manage TTY Settings
Apple® iPhone® - Manage TTY Settings
When TTY (teletypewriter) settings are enabled, you can use your phone with a TTY device if you're deaf or hard of hearing.
The steps below apply to the following models:
iPhone 5 / 5c / 5s
iPhone 6 / 6 Plus / 6s / 6s Plus
iPhone 7 / 7 Plus
iPhone 8 / 8 Plus
For other models, click the applicable link for instructions:
From the Home screen, navigate:
From the 'HEARING' section, tap
Tap the following switches to turn on
Allows you to make and receive TTY phone calls using iPhone software without the need for additional hardware.
Allows you to connect to an external device for TTY calls.