NEC DTP-16D-1 Dterm Series E 16-Key Speakerphone Office Telephone NEAX PBX

NEC DTP-16D-1 Dterm Series E 16-Key Speakerphone Office Telephone NEAX PBX

The NEC DTP-16D-1 is a digital multiline office telephone from the Dterm Series E product line, designed exclusively for use with NEC NEAX PBX systems. It features sixteen programmable line and feature keys, a built-in speakerphone, and a three-line LCD display — making it a full-featured desk phone suited to multi-line business environments. The unit shown is white (WH) and manufactured by NEC Infrontia Corporation in Thailand.

Specifications & What's Included

• Model: DTP-16D-1 (WH) TEL
• Product Line: NEC Dterm Series E
• Stock No.: 590040
• 16 programmable line/feature keys with paper label strips
• Built-in speakerphone
• 3-line × 24-character LCD display panel
• Headset jack
• Loop/loop adapter support
• Wall-mountable housing
• Tone, volume, and contrast controls
• Side-panel RJ-11 line port and accessory/headset port (visible in photos)
• Color: White
• Manufactured by NEC Infrontia Corporation, Made in Thailand
• Compatible with NEC NEAX PBX systems only (per rear label: "Only for NEC PBX")
• Includes handset and curly cord
• PBX-powered — no external power adapter required

Applications

The NEC Dterm Series E is a line of digital proprietary telephones designed to work with NEC's NEAX PBX platforms, including the NEAX 2000 and NEAX 2400 series business telephone systems. These phones are commonly found in corporate offices, hotels, healthcare facilities, and call centers that ran NEC PBX infrastructure during the 1990s and 2000s. The DTP-16D-1 model targets users who need access to multiple lines and one-touch feature buttons — receptionists, managers, and department leads who require quick access to PBX features like call forwarding, hold, transfer, and speed dial. Because NEC NEAX systems remain in service in many organizations, these phones continue to be sought as direct replacements and spares for existing installations.