The only issue with Admin programming is that Toshiba added this ability sometime in ver 2.2something. The admin ability did not exist prior to this update. It is disabled by default. At some point a Toshiba tech would have had to turn it on for an extension, usually the reception or office manager. I have turned this one for only a handful of customers who wanted to change the names on their own.

You could use system programming to enable Admin for an extension, then use that extension and set the DN names for the other phone extensions. You would need to use a 20-button phone to access PRG 204 FK34, Administrator phone.