How does WhatsApp work technically?

Related questions

1. Is Cisco Jabber VoIP?
2. Does WhatsApp use firebase?
3. Can you text with Jabber?
4. What is Jabber used for?
5. Does WhatsApp use socket IO?
6. What is IM&P Cisco?
7. What does account type Jabber mean?
8. Can you get jabber on your phone?
9. Does Cisco Jabber work on Mac?
10. Can anyone use Cisco Jabber?

Tags

1. #changes
2. #restructuring
3. #important
4. #transfer
5. #performance
6. #optimal
7. #ejabberd
8. #programming
9. #users
10. #achieve
11. #instant
12. #erlang
13. #which
14. #between
15. #message
16. #language
17. #whatsapp
18. #basis
19. #facilitates
20. #server