I did this but using Twilio, a Grandstream HT802v2, and a basic AT&T wall phone. Caller ID sorta works. I really tried to find a phone that would make a satisfying sound when slammed down, but I found that no one makes good, solid corded wallphones any longer.
The toughest part was figuring out which set of wires (my house had like 5 lines somehow) went to that particular jack in the kitchen.
The toughest part was figuring out which set of wires (my house had like 5 lines somehow) went to that particular jack in the kitchen.