Keys & Lamps

Function Keys Programmable Keys
oft Keys Lamps
Default Function Displays
For Each Status
Soft Key Features
Feature Key Activities


Press key to place an internal or external call on hold.

Allows the station user to transfer established calls to another station, without attendant assistance.

When LED on this key is lighted, press key to answer a waiting call.

Controls the built-in speaker which can be used for Hands Free dialing/monitoring. LED on key lights when key is active.

Press key to activate redial feature.  Press redial and scroll back through numbers that have been dialed. Until the desired number is displayed.  Press the * key to activate dialing.

Press key to establish a three-way conversation. LED on key lights when key is active.

Press key to terminate established call and reseize internal dial tone.

Used to activate terminal setup functions and to program One-Touch Speed Dial/Feature Keys.

Used to adjust LCD contrast, speaker/receiver volume, and ringer volume.

LCD Contrast:
 Press up or down key while idle.
Speaker/Receiver Volume:
 Press up or down key during conversation.

 Ringer Volume:
 Press up or down key during ringing.

These are examples of Dterm® features available by pressing the programmable keys. Some features may be programmed by the user.  Others must be programmed by the telephone system administrator.

Press key to activate Automatic Intercom.
Press key to send or receive data calls, or to disconnect from a data call.
Press key to activate Dial Intercom.
DND (Do Not Disturb)
Press key to activate or cancel Privacy feature.
Press key to activate or cancel Call Forwarding – All Calls feature.
Press key to activate, verify, or cancel Call Forwarding – Busy feature.

Press key to activate, verify, or cancel
Call Forwarding – No Answer feature.

Press key to activate Manual Intercom.

MSG (Message)
Press key to leave message indication at station in no answer or busy condition.

Press key to leave message waiting indication on boss’ station from secretary’s station.

Press key to cancel message waiting indication on boss’ station from secretary’s station.

Press key to release Privacy feature.

S&R (Save and Repeat)
Press key to store a number or redial a stored number.

Press key to cause chime at predetermined station.

A programmable extra extension key.  Press key to see status of extra extension.


a_NEC027illus.offSOFT KEYS

NOTE: Soft Key functionality is optional and may not be available on your Dterm Series E telephone.

The Soft Keys on the Dterm Series E provide a set of functions on the LCD that adapts to the changing state of the telephone. While default Soft Key settings are provided, desired functions can be assigned to individual stations as required. The Soft Keys, at the bottom of the LCD, can display the blinking names of available functions, names of user-assigned functions and names of functions assigned by a specific Soft Key pattern. The Soft Keys displayed can vary, depending on the state of the phone and/or when the Next/Previous button is pressed.


HSET (Headset)
Press the Soft Key below “HSET” to activate Headset operation. The primary extension LED will illuminate when headset is on.

Press the Soft Key below “Mic” to activate or deactivate the Microphone. The Mic LED will illuminate when Mic is on.

Press the Help Key. Press desired Soft Key for helpful information about that key.

Press the Exit Key to exit the Help program.

OHROFF (Off Hook Ringing Off)
Go off-hook or press Speaker Key, then press Soft Key below “OHROFF” to disable ringing  on secondary and trunk line  appearances on this telephone while in use.

OHR-ON (Off Hook Ringing On)
Go off-hook or press Speaker Key, then press Soft Key below “OHR-ON” to allow ringing  on secondary and trunk line appearances on  this telephone while in use.

Go off-hook or press Speaker Key, then press Soft Key below “MUTE”. MUTE will flash and Voice Path is eliminated to the handset, headset or speaker.




Dial Tone/Dialing









The default Soft Key settings provided correspond to particular functions. Different Soft Key settings are displayed at the bottom of the LCD depending on the state of the call, as shown.

Different patterns of Soft Key settings can be registered for individual call states and assigned to individual terminals as required.



Push >>>





Push >>>


Consultation Hold s-7-10
All Trunks Busy s-7-11



When the Soft Key corresponding to a desired function name is operated, the selected function name starts to blink on the LCD. The blinking display of available functions takes precedence over the display of functions specified by the Soft Key pattern.

FDB (Call Forwarding-Busy)
Permits a call to a busy station to be immediately forwarded to a pre designated station.

FDA (Call Forwarding-All Calls)
Permits all calls destined for a particular station to be routed to another station regardless of the busy or idle status of the
called station.

E-OVR (Executive Override)
Enables selected station users, upon encountering a busy condition at an internal station, to bridge into the busy connection.

CW (Call Waiting)
Enables a busy station to receive a second incoming call. A camp-on indication tone is sent to the busy station, and the user can use a switch hook flash to answer the second call.

CB (Call Back)
Provides the ability for a calling station to set a CALL BACK. The calling station will be rung as soon as the busy station becomes available.

S&R (Save and Repeat)
Allows a station to save a specific dialed number and then redial that number later.

MWSET (Message Waiting-Set)
Allows a station to set a Message Waiting indication or lamp.

HOLD (Call Hold)
Permits a station user to hold a call in progress and to return to the previously held call.

MWOFF (Message Waiting-Cancel)
Allows a station to cancel a Message Waiting indication or lamp.

PICK (Call Pickup-Group)
Permits a station user to answer any calls directed to other lines in the user’s preset Call Pickup Group.

CONF (Three-way Calling)
Enables a station user to establish a three-way conference by connecting an additional party to an already existing conversation.

VOICE (Voice Call)
Enables the user to make a call to the called party’s built-in speaker. If the called party’s MIC is on, the called party can converse hands-free.

S-SPD (Speed Calling-System)
Allows a station user to call certain frequently dialed numbers using fewer digits (abbreviated call codes) than would normally be required.

CAS (CAS-Switch Hook Flash)
Allows the user to send a switch hook flash while on an outside trunk.

UCDBO (UCD Busy Out)
Allows a station user to block UCD calls and to cancel Busy Out.

FLASH (Flash)
Provides the station with a switch hook flash.

FDN (Call Forward-No Answer)
Permits a call to an unanswered station to be forwarded to a pre designated station if the called station does not answer within a predetermined period of time.

C-RPT (ISDN Malicious Call Trace)
Allows the user to initiate a Call Trace on ISDN calls only.

G-SPD (Speed Calling-Group)
Allows a station user to share a set of common Speed Calling numbers with other station users in the group.

P-RLS (Privacy Release)
Allows another station to depress a busy line button and enter the conversation of a station already engaged in communication.

DND (Do Not Disturb)
Allows a station user to deny access to the station line for incoming calls.

MIC (Microphone On/Off)
Allows the user to turn the microphone on and off for use with the speakerphone.

BPAGE (Button Page)
Allows the user to assign two functions to each feature or speed key and to toggle between pages.

HSET (Headset)
Allows the user to go off- and on-hook when using the headset.

RLS (Release Key)
Allows the user to release the current call when using the headset, without waiting for the party to hang up.

SIG (Manual Signaling)
Permits station users to send a one-second ring to a predetermined station. If the signaled station is ringing from another call, the manual intercom signal will interrupt that ringing.

CKEEP (Eight-Party Conference Retain)
Allows all outside parties to stay on a conference when all internal parties hang up.

SCALL (Serial Call)
Allows the user to set Serial Call for the caller before extending the call, allowing the caller to receive an announcement at the end of the call guiding the caller to dial the next number and subsequent numbers.

IZP (Internal Zone Paging)
Allows a user to make a voice call through the speakers of the designated group.

IDCHG (Call ID Change Display)
Allows the user to toggle between standard display and an alternate display.

GPICK (Call Pickup-Group Enhancement)
Allows the user to answer any ringing station within the user’s expanded call pickup group.

CHCNF (Call Hold-Conference)
Allows a station user to establish a conference connection by adding a third party, who is held on another line, to the existing two-party connection.

RMUTE (Ringer Mute)
Allows a station user to mute or recover station ringing.

>>>(Display Function Next Page)
Allows the user to scroll to the next display screen.

<<<(Display Function Previous Page)
Allows the user to scroll to the previous display screen.

Call Indicator Lamp  Lamp at top corner of Dterm Display flashes when a call terminates to the terminal.  Lamp lights steadily when a message has been left.

Liquid Crystal Diode (LCD) display provides Dterm activity information plus date, time and Soft Key operation.
Some function keys have a built-in Light Emitting Diode (LED) that lights or flashes according to the activity of that function key.

MIC (Microphone) Lamp
Lamp displays the status of the built-in microphone used for hands free operation.


Feature + 1 = Turns microphone on or off.

Feature + 2 = Adjusts handset receiver volume.

Feature + 3 = Selects ringer tone.

Feature + 4 = Adjusts transmission/receiving volume.

Feature + 5 = Activates hands-free operation.

Feature + 6 = Deactivates hands-free operation.  

Feature + 7 = Turns call indicator lamp on or off  for incoming call Notification.
(If turned off, this lamp will still light to indicate message waiting.)