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- 28. What is a PBX?
-
- A PBX is a Private Branch Exchange. A PBX is a small telephone switch owned
- by a company or organization. Let's say your company has a thousand
- employees. Without a PBX, you would need a thousand phone lines. However,
- only 10% of your employees are talking on the phone at one time. What if
- you had a computer that automatically found an outside line every time one
- of your employees picked up the telephone. With this type of system, you
- could get by with only paying for one hundred phone lines. This is a PBX.
-