Set Up Tty Text Telephone. A TTY is a text telephone device that enables individuals who are deaf hard of hearing or who have a speech impairment to make and receive telephone calls. To Make a TTY Call Dial 7-1-1 or 800-735-2258 to initiate a TTY call through Maryland Relay.
Otherwise you might experience poor audio quality during the call. How Do I Use TTY Mode on Android. The device requires two TTY users to type messages back and forth to communicate instead of talking or listening.
How Do I Use TTY Mode on Android.
Users communicate more or less like using online chat applications. Then type the message you want to send on the TTYs keyboard. To use typed text in both directions tap TTY Full. Open the Phone app.