Description
Genuine NEC DTZ‑8LD‑3 (BK) DT400 Digital Phones
Brand: NEC (Original OEM equipment)
Up for sale is a lot of two NEC DTZ‑8LD‑3 (BK) DT400 digital phones pulled from a working office environment when the system was retired and replaced with a cloud-based PBX.
These are solid business-class desk phones and I hope someone can put them back to use.
Era: 2010s (entered service around 2015, retired Spring 2026)
Compatibility
Important: These are NEC digital PBX phones and require a compatible NEC system.
- NEC SV8100
- NEC SV9100
- NEC SV9000 series (and similar)
Not compatible with VoIP, SIP services, or standard residential telephone lines.
Features
- Dual LCD displays (main + lower soft-key display)
- Programmable soft keys on both sides of lower screen
- Navigation pad with center select
- Full speakerphone with front-facing speaker grille
- Dedicated buttons: Hold (red), Transfer, Speaker
- Function keys: Recall, Feature, Answer, Mic, Menu, Redial
- Standard NEC digital station connection
- Tilt desk stands integrated into each base
Included
- 2 × NEC DTZ‑8LD‑3 (BK) digital phones
- Serial numbers: A13809B4X00178 & A13809B4X00225
- 2 × handsets
- 2 × coiled handset cords
- 2 × line cords (one approx. 6 ft, one approx. 15 ft)
- Attached bases and stands
Condition
Used – pulled from a working office environment
Phones were functional at the time of removal during an upgrade to a cloud PBX.
Typical office wear including light scuffs, dust in creases, and noticeable surface wear on the display lenses.
Handsets show moderate use at the mouthpiece area. No cracks or structural damage observed.
Units were wiped down with a damp cloth; deeper cleaning may be desired by the buyer.
Exactly what is shown in the photos is included.
Notes
- Requires NEC SV-series PBX and programming knowledge
- No power adapters included (powered via system line)
- Rear ports and handset connections confirmed intact
Frequently Asked Questions
What does this phone do?
This is a business-class digital desk phone used with NEC SV-series PBX systems for office telephony, including call handling, transfers, and internal extensions.
Is this an original OEM unit?
Yes. These are genuine NEC DT400 series phones.
View other parts on our
NEC brand page.
Manufacturer reference:
Official NEC Website
Need more than two?
We have additional matching NEC DTZ‑8LD‑3 (BK) phones available (approximately 25–30 total).
Discounted pricing may be available for larger quantities — feel free to reach out.




















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