WHAT IS THE FEATURE KEY - NEC Electra Elite DTU 16D-2 Corded Phone

Try:

1. Press the Machine Status button, then Tools tab.
2. Select the General feature, then Feature Installation.
3. Enter the Feature Key on the Feature Key screen to reset the Administrator credentials to the default values ( admin and 1111).

I find the toyota owners forum very helpful on these type questions:
Programming Avensis T3 Key Fob Avensis Club

Unfortunately it doesn't look like there are any special features, most of the entries revolve around reprogramming if you have to replace or renew the batteries.

menu key??? google ---'Norstar feature codes'
feature *80 controls ringer volume
feature 85 and feature #85 adds and removes do not disturb

These phones work on about 8 NEC phone systems, but most are just newer versions of the same system. So, most likely the callback feature has been activated. Someone internally calls you, you don't answer, they dial # to activate callback. You come back to your phone, see feature key flashing, lift handset, dial #, call goes to whoever set callback, then feature key stops blinking.

Feature, Redial, press button to program, dial 1, dial the extension number, Feature to write and exit. ONLY IF the buttons are programmed as feature buttons, they may be just dead buttons, useless until they are assigned in system programming as feature buttons.

When you connect a Nortel Meridian M3820 phone to a 3300 CITELlink Gateway andprogram it as a CITELlink Type2 device, ... Button Label. Function ... Feature Key 4. 11. Feature Key 5. 12. Feature Key 6. 13. Program. 14. Menu Right

In order to set call forwarding on this telephone, must first have the feature CFV (Call Forward Variable) on in the line. This feature can be provided by the telephone service provider.

A typical feature code for this is *72 to activate CFV and *73 to deactivate.

You can program these features on the M9316 telephone by do the following:

CFV activate

1) Press the SAVE key.
2) Then select the key where you want to program the feature.
3) Then enter *72 (optional: plus the telephone number of where you want the call to forward to).
4) Press SAVE twice.

CFV deactivate

1) Press the SAVE key
2) Then select another key where you want to program the feature.
3) Then enter *73
4) Press SAVE twice.

Be sure and label your buttons.

To use go off hook and press the key you just programmed.

try hitting feature key then dialing # plus feature key again

Need to disable SPCL Key Required for feature code entry in system flags, But you may have a numbering conflict in you system with a ext. and a feature code.

You need to program the feature "recall" on a button.

On the phone you want to program, press Feature 00
press a button you can program as "Recall"
press feature 03
when finished, press feature 00 and you are done.

Recall is the "flash" button