Pbx Internal Switching Network

The central office lines provide connections to the public switched telephone network pstn and the.

Pbx internal switching network.

A pbx private branch exchange system allows an organization to manage incoming and outgoing phone calls as well as internal communication. A pbx or private branch exchange system serves a private network of telephones in an office and acts as the gateway from a company to the outside world. In contrast to a public switched telephone network the main purpose of a pbx is to save the cost of requiring a line for each user to the telephone company s central office. The users of the pbx phone system can communicate internally within their company and externally with the outside world using different communication channels like voice over ip isdn or analog a pbx also allows you to have more phones than physical phone lines ptsn and.

What is a ip pbx. Ip pbx systems handle internal traffic between stations and act as the gatekeeper to the outside world. A private branch exchange pbx is a telephone system within an enterprise that switches calls between users on local lines while enabling all users to share a certain number of external phone lines. A traditional standard pbx is a physical on site switching system that performs these central functions and hooks up to the public switched telephone system pstn.

A pbx is made up of both hardware and software that connects to communication devices such as telephone adapters hubs switches routers and telephone sets. Pbx stands for private branch exchange which is a private telephone network used within a company or organization.