Ericsson Dialog DBY 419 Add On Module - Refurbished

• + 17 Busy lamp field keys (BLF) per module
• Up to 4 modules add on per telephone
• Total capacity of 78 BLF per phone station
• Compatible with all Ericsson DBY System Telephones

Modules in series:

A maximum of 4 Add On Modules can be added to a single Ericsson Dialog 4223 or 4224 telephone.
This enables a potential of 78 Busy Lamp Field keys per telephone.

Note:

The Ericsson Dialog Telephones are only compatible with the Ericsson MD110 Telephone system, and is not suitable for home use.