96596 Extension Unit InstaJack Phones Review

I am using Netgear Ethernet with our VOIP Pack 8 virtual office phone as a wireless cable extension. We needed this phone to call line 2 of our 2 line Uniden (since the virtual office is not wireless). I was a bit skeptical but since a new "VOIP" sticker was put up I gave it a try. That does not work. But I saw another review (for the RCA phone jack I think) that mentioned the PX-441 being data and voice compatible. So I will try!