Which server is used by WhatsApp?

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Tags

1. #instant
2. #facilitates
3. #under
4. #anything
5. #basis
6. #between
7. #server
8. #above
9. #ejabberd
10. #erlang
11. #developers
12. #which
13. #programming
14. #traffic
15. #whatsapp
16. #reliability
17. #reason
18. #sustainability
19. #users
20. #message
21. #chose
22. #language
23. #transfer