What is PBX?

[Looney34]

Hi all,
I newly joined this community and I have some basic questions that I would like to ask. What is PBX? And how does it work in small business office. I know little bit but I want collect more information on that. So you please drop me your answers.

Thanks!

[Jordan]

Are you referring to the telephone system exchange ("Private Branch Exchange")?

A PBX essentially takes the place of the phone company's Central Office within the company by acting as the exchange point, routing calls. With a PBX in place, each phone only needs an extension, not a phone number, and the PBX handles all calls made from desk-to-desk within the company.

What is a PBX?