What is a PBX switchboard?

Related questions

1. How did switchboard operators work?
2. How much does a switchboard operator make?
3. What happens if I call 411?
4. How much do switchboard operators make?
5. How much does a phone operator make?
6. Do I need to dial 1 on a cell phone?
7. What is hotel telephone operator?
8. What kind of skills does a receptionist need?
9. What is the qualification for receptionist?
10. What are the duties of a PBX operator?

Tags

1. #switchboard
2. #system
3. #public
4. #interconnect
5. #users
6. #circuits
7. #establish
8. #switched
9. #network
10. #exchanges
11. #calls
12. #subscribers
13. #enterprises
14. #telephones
15. #telephone
16. #between
17. #other
18. #telecommunications