Question about NEC Electra Elite DTU 16D-2 Corded Phone

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Blinking light but no ring sound on incoming calls

The phone is a NEC DTU 16D-2. It doesn't ring on incoming calls, so I only get the visual indicator of the blinking light.

I have tried pressing the up/down button when the call is _still_ 'ringing' but it doesn't change the volume (it changes the contrast of the LCD instead, as if the phone isn't ringing). I tried pressing feature, 3, then the up button, then feature. Still the same thing.

Any other thoughts?

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Re: Blinking light but no ring sound on incoming calls

This is a phone system phone and each station you want to ring when a certain phone line rings has to be programmed into the system. This is not something you can change at the phone itself. You will either need to pay a company to make programming changes or locate a programming and installation manual for your phone system (not the phone) and try to re-program it yourself. If you have not done this before it will not be easy but it may be worth the effort so you can continue to make your own changes instead of paying someone $200 per hour to do it for you.


There is also the remote possibility your phone's ringer is broken. You can try swapping your phone with another of the same type and model to see if it will ring.

Posted on Oct 18, 2007

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SOURCE: I have a NEC DTU-16D-2 phone system. The Speaker

Press Feature and then 1. This will turn on the MIC.

Posted on Apr 29, 2010

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