Oh men, I should know this trick long time ago..
From last year I am having major problem with AT&T reception at my house and I can't convinced AT&T to do something. They claim one cell site at my neighborhood is in repair but nobody gives me any answer when they going to fix it. (repair suppose to be done by end of May 2012)
We have already October and my Signal level is usually at one bar or Searching...
I am eligible for iP5 upgrade but at this situation I am NOT going to commit for another 2 years of nightmares.
Besides I am not even sure if iP5 has better reception than my 3GS or my wife's iP4.
The Field Test says now -111 and that looks like 1 bar.
Does anybody knows how to check signal for specific cell site by this test and what's minimum number I should have at least some reception.
I'm sick and tired call AT&T every month for an update.
Unless you have a good reason to stay with ATT, or are moving soon to a place with better coverage, I would just switch providers. That's what I did going from the 4S on ATT to the 5 on VZW and my service is now spectacular.