What's Viber on iPhone?

Related questions

1. Can I install Viber on two phones?
2. Does Viber out cost?
3. Can Viber receive calls?
4. What is Viber and how does it work?
5. Is Viber private?
6. Why has Viber stopped working?
7. Can I use Viber on two phones?
8. Does a WhatsApp call always ring?
9. Does Viber work with iPhone?
10. Does Viber use SMS?

Tags

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7. #calls
8. #enables
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15. #viber
16. #video
17. #types
18. #devices
19. #multiple
20. #which
21. #other