How does the TTY work?

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Tags

1. #special
2. #messages
3. #forth
4. #telephone
5. #speech
6. #another
7. #instead
8. #order
9. #listening
10. #impaired
11. #device
12. #people
13. #hearing
14. #required
15. #talking
16. #conversation
17. #communicate
18. #allowing