I need several DTH 16-D phones for IPK II. Called the host of this forum get N/A. Any body got another place?

Might I suggest.....

https://www.ebay.com/itm/NEC-DTH-16D-1-BK-LOT-OF-30-LCD-Display-Business-Telephone-system-buy-ONE-OR-ALL-/182084814741?hash=item2a6519c795:g:Gk8AAOSwh-1W3xbf

try CMS Communications. They may have some not listed on web site.
https://www.cmsc.com/product.asp?partNo=780571N&catID=44

Teleconnect Direct in Atlanta.

I don't see NEC on their website, but i have sold them many of my spares and trade in NEC phones.