What is DND in networking?

Related questions

1. Why does my Do Not Disturb not work?
2. What is the world of DND called?
3. What is DND mode?
4. What does the dungeon master do?
5. What are the rules of Dungeons and Dragons?
6. How do you become a DM?
7. Do calls go straight to voicemail on Do Not Disturb?
8. What do callers hear when Do Not Disturb is on?
9. Do not disturb while driving keeps turning on?
10. Can you put one person on Do Not Disturb?

Tags

1. #prevents
2. #systems
3. #ringing
4. #activated
5. #calls
6. #which
7. #extension
8. #function
9. #disturb