How do I change the display name on a toshiba dkt3210-sd

SOURCE: Change name display on Toshiba DKT2020-SD

I am assuming you want to change the display to read another persons name, or blank. If that is correct:
Press a [DN](labeled intercom on my system) + #621.
That opens edit mode.
an example. My phone reads "MARK 29"
where Mark is the user, 29 the extension. John replaced
Mark, so target is "JOHN 29"
so intercom # 6 2 1 puts me in edit mode
# toggles between alpha/numeric
* moves the cursor, I repeat * until cursor is under M
Hit the 5 key, changes the M to J and moves cursor under the A.
Hit the 6 key, the A changes to M, and the cursor moves to under the R. I hit 0 which changes the M to N. I hit 0 again, the N changes to O.
Hit the 4 key, the R changes to G. Hit 0, G changes to H.
Hit the 6 key, K changes to M. Hit 0, that changes the K to M. Hit 0, M changes to N.
We are done, as the extension number stays the same. Hit spkr key to leave edit mode.
Hope that helps!
# toggles alpha/numeric

SOURCE: Change name display on Toshiba DKT2020-SD

Press "intercom" button, then #621. Use * to move the cursor all the way to the left. Use the # sign to change from numbers to Alpha. For example: You want "N", but the "M" comes up. Press the "0" to toggle to additional letters on same number key. For a SPACE, use the number 1 and toggle to get a space.

SOURCE: NEED A USER MANUAL FOR A TOSHIBA DKT3210-SD

This is the direct link to the user manual on the web. The manual covers a variety of phone models including the DKT 3000 series phones.

http://www.telecom.toshiba.com/Telephone_Systems_Resources/User_Guides/pdf/Strata_CIXCTX_User_Guide_IPT2000_DKT3000.pdf

SOURCE: How do you get rid of the beeping noise when you

Dial Pad and Button Beeps
Digital telephones can emit a “beep” sound whenever a dial pad or feature button is pressed. The “beeps” are On by default. Follow these steps to turn the “beeps” On or Off on 3000-series DKTs.
1. Press 3+6+9+Hold(simultaneously).
2. Press 0.
3. Press Feature Button 1 (FB1) to toggle On/Off.
FB1, LED On: buttons beep.
FB1, LED Off: buttons do not beep.
4. Press hold to set the option.
5. You must also go off-hook, then on-hook to exit the program mode.

SOURCE: I need to change the name that is displayed on my

On the DK systems, you need to go into system programming, and enter the name for your extension under a setting you can access.on the CIX or CTX Phone system, you have to have a computer based software, called emanager, and program it through the computer. You may need a technician to help set that up.