What are TTY devices?

Related questions

1. What is TTY mode on my phone?
2. What does TTY VCO mean on my phone?
3. What is TTY terminal?
4. What is TTY in Android phone?
5. What is Docker TTY?
6. How do you call a TTY number?
7. What is 611 phone number?
8. What does TTY Full mean on a cell phone?
9. What is TTY VCO mode on my phone?
10. How do I get TTY service on my phone?

Tags

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