The Avaya 8400B Plus Data Service Unit (product code: 8400B) is in stock and available from Office Phone Shop.
The Avaya 8400B Plus Data Service Unit (product code: 8400B) is a full duplex asynchronous data module that provides desktop integrated voice-data communications via twisted-pair wiring.
The 8400B works with the two-wire Definity Digital Communications Protocols Circuits. It replaces (and is compatible with) the 7400B Plus Data Module.
We stock a wide range of new, remanufactured and refurbished office telephone system spares and parts.
Please quote Avaya 8400B Plus Data Service Unit or product code: 8400B when ordering.
Office Phone Shop stock a complete range of Avaya 8XXX Series Business phones & Accessories including: