I am moving to a house where I pretty much get no reception on my JB/unlocked iphone 3G. T-mobile is my provider and they have agreed to send me a Cel-Fi. I don't think this will help me because, as I understand it, the Cel-Fi only works if you get some reception (1 or 2 bars) and works using the 3G network. The iphone can only access the Edge network on T-mobile. Is there a way to make and receive calls using my wireless internet connection? I'm not talking about using google voice or skype. I want to make and receive calls using my cell number. Is this possible?