DKT 2000 series phones are all about 16+ years old by now. I wonder what are the odds that anyone still has one of these phones new in box sitting on the shelf after all these years? I guess it's possible, but seems like the odds would be low.

A DKT 3010-SD or DKT 3210-SD will work in it's place, and they didn't have those hook-switch problems that some 2000 series phones had. Technically even the new DP5022-SD would work also, but they might look a bit out of place.