Question about NEC DTU 8D-2 Corded Phone

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Why is the mic "lit" on my NEC Elite 8-Button Display Telephone DTU-8D

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When the light is lit it allows hansdfree use of your phone.

Posted on Feb 07, 2009


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1 Answer

NEC DTU 8D-2 Corded Phone how do I page?

Standard codes run from 50 to 59. Internal 1,2,3,all, external 1,2,3, all, all internal and external. That's if your codes are at default, and your system is a Pro II, Elite, or IPK. Those phones work on about 8 NEC systems.

Mar 11, 2014 | NEC DTU 8D-2 Corded Phone

1 Answer

How to change the display name

Consult the owner manual or if do not have Google the model number for manual. That info has to be in the owner manual--last resort call the customer service for the unit.

Aug 28, 2012 | NEC Electra Elite Dtu-8d-2 - 770012 -...

1 Answer

How do I turn off the blinking lights on my DTU-8D-2(BK) Telephone

Unplug the line cord. While holding down the * and # keys, plug the line cord back in. Release the * and # keys.

Follow the directions on-screen, which will test all display modes, buttons, and sounds for both red and green colored LEDs.

If the feature button continues to flash, press it and then lift the handset and hang up.

Sep 09, 2011 | NEC DTU 8D-2 Corded Phone

1 Answer

The display screen on my DTU 8D is all black

Try adjusting the display by using the arrow keys on the bottom right of the phone. The phone must be idle to do this.

Jul 07, 2009 | NEC Electra Elite 32D-1 Corded Phone

1 Answer

Mic button

Press function button than 1 or feature button than 1

Jun 15, 2009 | NEC DTU 8D-2 Corded Phone

1 Answer

Mic not working

You need to press feature than the number 1 to turn on your mic. You can find support and get anything you may need from

Nov 19, 2008 | NEC DTU 8D-2 Corded Phone

1 Answer

NEC Telephone speakerphone. You can hear the caller, but they can't hear you.

Chance's are it's a bad hand set, Swap with another to see if problem follows it. if it dose, replace it.

Oct 01, 2008 | NEC DTU 8D-2 Corded Phone

2 Answers


Press Feature 1 That will turn the mic off, or on.

Oct 23, 2007 | NEC Electra Elite 32D-1 Corded Phone

1 Answer

I need to program a HeadSet Button

For the DTU phone on an NEC Elite system:
Memory Block 4-12
put in the port number and the Lkey of the extension you want to make a headset key.
Programmin on a 16button phone, Lkey 11 needs to be lit and will display H SET to verify.

For the DTP phone, it is generally on an NEC 2000, which is entirely different.

Oct 12, 2007 | NEC Electra Elite DTU 16D-2 Corded Phone

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