RTT, or real-time text, is built into the iPhone 6 ... Quick tip: When RTT or TTY is enabled, a phone-like symbol will be present at the top of your screen during calls. Once on, you can ...

Call: 988 or 1-800-273-TALK (8255) For Text Telephone (TTY) users: Use your preferred relay service or dial 711 then 988 Visit: www.988lifeline.org Chat: Text with a Crisis Line responder – Send ...

RTT, on the other hand, allows you or the person on the other end of the phone to see what's being said as it's being said. Turning on the RTT protocol doesn't require any additional hardware as ...