I have both cell phone and internet phone. My internet phone (Panasonic) will connect via bluetooth to my cell phone when I am home so I am able to send and receive my cell phone calls through one phone. It is a little annoying to have both phones ring at the same time but I can live with it.
I have heard that I can use the Xfinity Connect app to receive calls from my internet phone to my cell phone (the reverse of what I indicated above). That would be great if I am away from home but what happens if I am home? It seems that both phones would try to answer eachother's calls? Would I have to turn the app on and off depending if I am home or away?