Nortel Meridian M3900 Box Taurus Display Based Add on module (DBA) - Refurbished - Charcoal

The Nortel Meridian M3900 Box Taurus Display Based Add on module (DBA) is a dedicated screen based adapter unit, designed to provide the top 3900 series model telephones with three layers of direct dial memory via 8 action keys, for a total of 24 active keys. The large scroll screen data display is navigable via a single page key. The KBA is compatible with the Nortel Meridian M3904 and Nortel Meridian M3905 telephones. Use the Page Key to navigate between the three layers. Then use the edit command (under the options menu), and the dial pad keys, to update the programmable 10 character key labels.