What is Google hangout used for?

Related questions

1. Is Gmail hangout safe?
2. What is the purpose of hangouts?
3. Does Apple have Google Hangouts?
4. Will hangouts shut down?
5. How secure is Google Hangouts?
6. What is Google Hangouts used for?
7. Can you do a Google Hangout on your phone?
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Tags

1. #mobile
2. #android
3. #hangouts
4. #members
5. #built
6. #devices
7. #voice
8. #initiate
9. #participate
10. #gmail
11. #google
12. #group
13. #communications
14. #allows
15. #service
16. #video
17. #unified
18. #chats
19. #either
20. #available