Strange issue, but the title pretty much says what I am having trouble with: For the last two days my iPhone 3G has been dropping calls, immediately failing calls, and I have been unable to receive calls (they go to VM). I also have problems with texts, although I have full signal strength and have had no trouble with phone calls or texts for the last year that I've had my 3G. The thing about this issue: It only happens in a 100 yard radius! When I leave my neighborhood, all is well with the phone and it works as normal. Once I get two or three houses down from my home... the calls drop like gravity. I may every once in awhile get a call to connect, but it drops after no more than 10 seconds. It seems to be interference somewhere (as in a wireless modem/router network, etc. nearby), or is that possible? I immediately suspected my new Ambient modem (from Charter, my ISP) as the culprit, but after disconnecting the modem I am still having the same issue, as well as my neighbor three doors down who is on AT&T and has a smart phone. Charter claims they have never heard of this issue, and Apple says they can't help me. Any thoughts?