Private branch exchange (PBX)

Private branch exchange (PBX),

Definition of Private branch exchange (PBX):

  1. An exchange on private premises by which private lines may be connected to a public network; abbreviated PBX.

  2. Small replica of a telephone exchange installed at a subscribers premises, and connected via trunk lines to the telephone companys exchange. Depending on its capacity, a PBX can handle tens or hundreds of telephone lines, and reroute the incoming calls to the appropriate extension automatically or through an operator. Modern PBXs are built around a small computer, and some of them can be connected to a server for additional services such as call management, call-detail reports, telemarketing, etc. Also called private automatic branch exchange (PABX).

Meaning of Private branch exchange (PBX) & Private branch exchange (PBX) Definition