How to Use the NEC Digital Telephone System

Tags NEC Phone dterm

How do I use the basic features of a NEC Digital Telephone?


This guide will explain basic features and functions of the Dterm Series NEC telephone system. 

 NEC Digital Telephone User Guide

  • All extensions remain the same.
  • People from outside will still reach you the same way they have done in the past.
  • Soft keys are features that appear in the display and can be activated/deactivated by pressing the button just below the feature that appears in the display.

Basic Features

Hold: While on a call, press the red HOLD button. The line will flash green on your phone.

Hold retrieve: Press the flashing line button to continue conversation in the call.

Transfer: While on a call:

  1. Press the Transfer button.
  2. Listen for an interrupted dial tone.
  3. Dial an extension and then hang up OR wait to announce the call then hang up.
  4. If called, the party cannot take the announced transfer. The called party should hang up and you will automatically connect back to the initial caller. 
  5. If you encounter a busy or unanswered extension, press Transfer again to return to the caller.

Answer: The Answer button allows you to answer any ringing line on your phone. This feature is used mainly by secretarial positions to avoid accidentally picking up calls placed on hold by another person.

Redial: Display phones can view the last five numbers dialed. Press the Redial button until the desired number is viewed, and then press * to redial.

Three-way conference: While on a call:

  1. Press the Transfer button
  2. Listen for an interrupted dial tone.
  3. Dial the number extension or outside number. 
  4. When the called party answers, announce the conference call, and then press the Conf soft key.

Recall: This feature gives you a new dial tone. Press the Recall button and another call can made.

Feature: The Feature button on your phone is a program button.

  1. Pressing the Feature button and then the Answer button toggles the Automatic Handset Answer feature on/off. 
  2. This allows you to program your speed dial keys. See below.

Forward all set: This reroutes all of your calls to a different extension.

  1. Lift the handset 
  2. Press the F-All soft key, then key the extension where you wish to send your calls. 
  3. Hang up.

Forward cancel: 

  1. Lift the handset.
  2. Press the F-All soft key.
  3. Hang up

Forward no answer set: This allows you to program where your phone will forward after 4 rings. Normally, you will want calls to go to your voicemail on this condition, which is the default programming if you use voicemail. 

  1. Lift the handset.
  2. Press the FDN soft key, then key the extension where you wish to send your calls.
  3. Hang up.

Forward no answer cancel

  1. Lift the handset.
  2. Press the FDN soft key. 
  3. Hang up.

Group pickup: Your phone has been programmed as a member of a pick group. You may answer any other member's ringing phone by lifting the handset and pressing the PICK soft key.

Callback: If you call an extension and encounter a busy signal, you can press the CB soft key to call back. When the internal person you called hangs up, the phone system will alert you that they are available with a callback ring (triple-ring). If you answer, the phone system will automatically redial the extension for you.

Speed dial keys: Buttons that are not labeled may be used to store extensions or outside numbers or other feature codes. 

  1. Press the Feature button.
  2. Press the blank button.
  3. Dial the digits to be stored (include 9 if this is an outside telephone number).
  4. Press the Feature button.

Menu: This allows you to access your call history and change personal settings for your phone.

  • Call History - Press Menu, and then 1
  • Personal Settings - Press Menu, and then 511


If you need more assistance with your NEC Dterm Digital Telephone, contact the YSU Service Desk at 330-941-1595 or at You can also submit a service request.

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Article ID: 55134
Thu 6/7/18 9:21 AM
Mon 4/1/24 4:16 PM