I can say that my Sprint service works perfect "outside" of my home, but once I get inside, I have to stand by a window, leaning one way and very still in order to keep a call "in my home". Before I upgraded from the original Blackberry, to the one the old replaced, I could sit, stand, lay "anywhere" in my home and my Blackberry worked just fine. Not sure if the newer models are missing same of the quality the old ones had (budget cuts), but it's not working. My son feels we should cancel and take our chances with someone else. I wanted to cancel my home phone and use my Sprint cell as my main phone, but at this point, I can't because of service on my Blackberry. My monthly cost is getting too high to maintain both bills, so it looks like I might have to cancel the cell and keep the home!