EPABX Full Form is Electronic Private Automatic Branch Exchange. This term is widely popular as the PBX (private branch exchange) telephone system. This is a system within a premise or enterprise, which enables calls between systems. It uses a specific number of external lines.
The main objective of an EPABX system is to save cost of individual lines to the central office of the telephone company. The PBX system is comprised of network of lines within the EPABX; a switchboard for manual operation; multiple phone lines or telephone trunk line that end at the PBX. In addition, it also requires a computer with adequate memory to manage the calls within the system.