Nortel NT8B90AAAF BCM ATA-2 Analog Terminal Adapter (Refurbished)The Norstar Enhanced Business Communications Manager (BCM) Analog Terminal Adapter 2 (ATA 2) connects a station port to a standard analog voice device, such as a single line telephone or a data communication device, such as a modem or facsimile machine. Key Features: Mnfr. Part #: NT8B90AAAF ATA 2 provides on premise service only This allows existing analog equipment such as modems, answering machines, and analog telephone sets to operate on the