Nortel Norstar 12 Button Busy Lamp Field (Black/Refurbished) Business Phones Required if using DTI cartridge(s)

Required if using DTI cartridge(s) or ISDN-BRI Interface cartridge(s)

Transfer key

Part# 9400-200-130

Built-in One Way Speaker

It works with Isoetec Digital System/Executone Integrated Digital System

Nortel Norstar 12 Button Busy Lamp Field (Black/Refurbished) Business Phones Required if using DTI cartridge(s)The Norstar Busy Lamp Field is a device that will latch onto an existing Norstar M7310 allowing an attendant to monitor the status of the internal autodial keys that have already been programmed. Key Features: Norstar 12 button BLF snaps on M7310 phones to provide lights to indicate busy status for up to 12 phones No additional Power or Wiring needed Compatibility: Compatible only with Norstar M7310