Check the listing for details. NEC DT300 Series DTL-12D-1/680002. Color: Black, Condition: New. Listed at 89.99 USD. The NEC DT300 Series DTL-12D-1/680002 is a digital answering system with a recording capacity of 17.0 minutes. It features caller identification, tone dialing, and a 3-way conference call capability. The device is compatible with PSTN telephone lines and operates with a single-line phone system. The sleek black design and compact dimensions make it a practical choice for home or office use. With its reliable brand reputation and quality features, the NEC DT300 Series DTL-12D-1/680002 is a dependable option for managing your phone calls efficiently.