Change extension ID

A problem with answering this question is first that the main SYSTEM keeps this info not the handset, so for the 3x8, 6x16, and 8x24 systems you can do the following (PROVIDED, the installer did not change the passwords to access).

Press FEATURE * * 2 6 6 3 4 4
Enter Password: 2 6 6 3 4 4 Display will read: " A. Configuration"
Press: NEXT Display will read: "B. General Admin"
(NEXT is always the button on the right of your lines/extension list, 2nd button down from top.)
4. Press: SHOW Display will read: "1. Sys speed dial" (SHOW is one key up from NEXT)
5. Press: NEXT Display will read: "2. Names"
6. Press the SHOW Display will read: "Set names"
7. Press: SHOW Display will read: "Show set:__"
8. Enter the extension number of which you wish to change the name Display will read: "<##:name>"
9. Press the CHANGE softkey
10. Using the dial pad spell out the name Ex: If you need the letter K press the 5 key twice and then press # to confirm the letter. Continue until the entire first name is spelled. (note: you are limited to 7 characters)
11. Press: NEXT (if you fail to do this step, the name will not be saved!!!)
12. Press the RLS key

I may be mistaken however I think you have to be on a model M7310, T7316, or M7324 phone (there should be at least one usually at the main desk) in order to program I don't think you can directly do it from the T7208.

Hope this helps.

To identify the extensions: if its a display set, press feature 00 and the screen will show the extension number. press feature 00 to exit programming.
If its a non-display set access the intercom and call a display set.The extension number will be displayed on the screen that is recieving the call.

To transfer a call: while your on the call to be transfered, press the transfer button and then the extension number of the person you wish to transfer the call toand hang up.

For a conference call:while on the line with the first caller,press the conf key (the caller will be placed on hold) place a call to your second party when they answer press the conf key again. all 3 parties will be bridged(you + the 2 lines) to get rid of one of the callers press thier line and feature 6 (conference drop)

Changing the time on a Partner system is done on either ext 10 or 11. At one of those ext's press the feature key and "00"
next press the left hand intercom twice
the display should say system programming
enter in "#103"
the display should say system time and the current programmed time
enter the new time in 24 hour format
press feature "00" to logout

Hi,

To turn off voice mail please dial ##002#, this would do the trick.

Regards

Sorry about the delay, I lost your post and could not get back in touch with you... This is a case where a certified Norstar tech will come in handy...
OK - lets get started.... Do you have the programming password to get into the system? Do you have the programming template (piece of paper to guide you thru the proper steps in which button to press?)
If you do lets go: Go to a set, hopefully a bigger set with 2 rows of buttons... -> Feature * * 2 6 6 3 4 4 -> is this is a CIC's/MIC's system it will ask for a password see next step, if this is a BCM it will ask you for a User ID:___ your default ID is 738662 -> Password:___ default is 266344
-> now you will see TERMINALS&SETS... keep hitting the NEXT button off the template till you see SYSTEM PRGRMING... -> now hit the ENTER and press the NEXT key till you see CHANGE DN -> now press ENTER this is were you will type in the old extension number (EX:2331) then type in the new extension number that you want the set to have (EX:5331) -> now hit the RLS button... check to see if the number changed but pressing FEATURE * 0 and pressing the INTERCOM key.
Now there are a few things that you have to remember, the voicemail has not been changed, the new extension needs to be programmed into the TARGETLINE for your DID number to ring at your desk, and if you have your extension as a Busy Lamp Field on the front reception, you have to change that to your new extension by going to the receptionist desk: ->FEATURE * 2, pressing your button, and dialing your new extension. -> now to see what your direct number target line is, press FEATURE * ) and press the button for your direct line... and see what LINE number you have, now get back into the system programming and find LINES and type in the number that you found on your phone (EX:255), press ENTER and press ENTER again you should see TARGET LINE. -> Keep pressing NEXT till you seePRIMESET:___ this has your old extension and press CHANGE and type in your new extension. -> hit the NEXT button and RLS -> your voicemail dial FEATURE 9 8 3 If you have a BCM your default LOG:___ is 738662 but if you have a MIC/CIC's system it will say password: default password is 10020000 for a 4 digit extension, 1020000 for a 3 digit extension. But if this a BCM the default password will be 2 6 6 3 4 4 -> press MBOX -> press CHNG -> your old extension -> you should now see PASSWORD press NEXT and you should see your old extension press CHNG and type in your new extension. Hit the next button after inputting this information, until you get back to the MAILBOX ADMIN and hit RLS.

Voila you are done! Good Luck

Well ~ eagleeigh731 has it mostly correct, do what he said to do and get into the programming --> find SYSTEM PRGRAMMING --> hit next until you find CHANGE DNs--> OLD DNs (this is the old extn#) 222 then type in NEW DN 431--> then hit the end or release button.
Voila your new extension is now there... to check dial FEATURE 0 then press the intercom button, the new extension should be there.

Read several on-line manuals and found out another way to access programming trees. It was a confusing mess and was mostly trial and error. The 4 keys under the read out screen are a key factor and knowing how those buttons interact with each other is important. In the process I screwed up regular functions because the password that allows set-up using the feature codes cannot be changed. Not a user friendly set-up at all and the initial manual virtually useless for some needs.

Yes, it deletes the messages.

This will fix your issue

Do this:

Feature # *
Hit # (8) times
Hit show
Enter 04-05-101~156 (101~156 is whatever extension number you are trying to change)
Press chg
Use the keypad to change the name pressing # after each letter
When you are done entering the name make sure you press # after the last letter or it won't show
pick up and hang up the handset

DONE

To change the names on the NEC Dterm 80.

Feature, Conf, #, 0, *, 8974, LINE 4, 18.

Select Conf to go to the name you want to change.

Select Hold to erase the characters.

Select Transfer to save it.
Once you save, make sure you go back to "18".

feature 983 it will ask for log number use code 120000 for 2 number extensions, for 3 letter extensions it is 1020000, and 4 is 10020000 once in this screen hit MBOX then CHNG and put in mail box number then hit next until you get to the name and press CHNG and you can change it using the the number corresponding to the letter I hope this helps