Which of the following is a private switching system that connects multiple phone lines within an organization to one or more central offices?
A) KTS
B) PBX
C) KSU
D) Centrex

Question

Quizplus · Accepted Answer

PBX, or Private Branch Exchange, is a private telephone network used within an organization that allows the sharing of a number of external lines for making external phone calls. It connects internal telephones within a business while also connecting them to the public switched telephone network (PSTN).

Which of the Following Is a Private Switching System That