No, TTY and text messages are not the same thing. TTY stands for "teletypewriter" and it is a technology that allows people who are deaf, hard of hearing, or have speech impairments to communicate by typing and reading text messages on a phone line. Text messaging, on the other hand, is an instant messaging service used to send short messages over a cellular network. If you're interested in learning more about these technologies, you can visit the FCC website (https://www.fcc.gov/consumers/guides/tty-text-telephone) which provides detailed information about how they work and how to use them.