What Does Private Automatic Branch Exchange (PABX) Mean?
Private automatic branch exchange (PABX) is a technology used by call centers and other large organizations that allows a single access number to provide several lines to outside callers while providing a range of external lines to internal callers or staff. PABX performs all the switching necessary for making internal calls between extensions within the organizations. It also allows provides a connection between extensions and external phone lines.
PABX is the improved version of the private branch exchange (PBX).