Private Automated Branch Exchange

A business telephone system is any of a range of a multiline telephone systems typically used in business environments, encompassing systems ranging from small key systems to large scale private branch.

PABX
PABX
PABX
PABX
PABX
PABX Model
PABX
PABX Model
PABX
PABX Model
PABX
PABX Model