What is difference between PBX and VoIP?

Related questions

1. Can you call a non fixed VoIP?
2. Can VoIP be tapped?
3. Can I use regular phone for VoIP?
4. What is a VoIP number?
5. What is interconnected VoIP?
6. Is a VoIP number a cell phone?
7. What is an example of VoIP?
8. Is Skype VoIP free?
9. Is a PRI VoIP?
10. What is DID number in VoIP?

Tags

1. #connect
2. #lines
3. #phone
4. #computer
5. #essentially
6. #difference
7. #system
8. #standard
9. #incoming
10. #voice
11. #internet
12. #small
13. #telephone
14. #calls
15. #outgoing
16. #because
17. #between
18. #users
19. #requires
20. #network
21. #transfers
22. #connection
23. #analog