Title: Explain the function of a PBX.
Course: Telecommunications I (10006-I) > Section: Exploring Analog Telephony and Transmission Service Providers

Explanation should include

- a definition of the term PBX (private branch exchange)—a telephone exchange that serves a particular business or office
- the basic function of the PBX—to connect the internal telephones at a business and to connect the business to a public switched network
- identification of the different types of PBX systems.

Process/Skill Questions:

- How does PBX work?
- How does PBX usage apply to your everyday activities?
- What causes problems with the PBX?