I purchased a Nokia 6681 (not available in the US. What we have here is a similar model - 6682) when I went to India in 2005. I am facing severe signal challenges with this phone. When others have a band or two, I would not have any signal at all. Also, while driving and talking, the signal just dies when I reach a spot where the signal is low (as opposed to the connection becoming poor and then picking up) and after few seconds it comes up again. Of course, by then the connection is lost.
Could anybody help me by telling me how I could take care of this problem? I spoke to Cingular, but they would not help me.