After purchasing my 3G iphone, I discovered that, despite there being 9 cell towers surrounding me, I am unable to get any service to my phone while inside my office building. When I spoke with an AT&T representative, she told me she has the same problem in her own office building. How can this be? I spent $300 on a phone that doesn't work in my office, where it's needed. Is anyone aware of a fix, other than to ditch this phone and use something with a different service provider?