What is PBX in networking?

Related questions

1. What is a PBX phone system?
2. Does Whatsapp use VoIP?
3. Is Elastix 5 free?
4. How much does VoIP cost?
5. What is the difference between PBX and PABX?
6. What is PBX provider?
7. What is cloud PBX?
8. Can I use a regular phone with VoIP?
9. How does telephony work?
10. Is Elastix free?

Tags

1. #within
2. #organization
3. #company
4. #communication
5. #private
6. #using
7. #which
8. #phone
9. #system
10. #telephone
11. #network
12. #analog
13. #their
14. #users
15. #stands
16. #different
17. #world
18. #communicate
19. #outside
20. #exchange
21. #voice
22. #branch
23. #channels