How does IP telephony work?

Related questions

1. What is a legacy phone system?
2. Why should I use VoIP?
3. Does SIP use TCP or UDP?
4. What is a star shaped symbol called?
5. What is legacy PBX?
6. How does office phone system work?
7. What is IP telephony system?
8. What is the benefit of SIP?
9. Is VoIP cheaper than PSTN?
10. Do businesses use VoIP?

Tags

1. #analogue
2. #rather
3. #converting
4. #terms
5. #works
6. #internet
7. #layman
8. #regular
9. #broadband
10. #network
11. #through
12. #signals
13. #voice
14. #system
15. #digital
16. #refers
17. #mobile
18. #taking
19. #phone
20. #sending
21. #calls
22. #making
23. #landline