I had a DINC and when looking at the signal strength under about phone and comparing to my BlackBerry they were often similar, but the DINC fluctuated a lot so it often had a considerably worse signal than my BlackBerry. I wouldn't have cared all that much except the voice quality was awful. I often had to ask the person on the other end of a call to repeat themselves. I finally traded it in for a Droid 2 after I was sitting in a room at work while all of my colleagues had a pretty solid signal and I had nothing. The Droid 2 has done much better for me, though the signal bars fluctuate a lot too (I think it's an Android thing). It's possible I had a bad one or something, but I had read a number of comments about terrible call quality, so I got out while I could. Hopefully you'll have better luck if you go the DINC route. I really liked the phone, but it doesn't do me much good if I can't understand the other person.