So, the bumper does NOT help? - This is very concerning. I thought the bumpers prevented the drop. Looks like the bumper is NOT a solution, after all.
What's more alarming is that you have to restrict your calling based upon poor service. How is this acceptable?
What is really strange is that other AT&T phones work fine, while the iPhone has a noticably lower signal strength when compared side by side.
The bumper most certainly "DOES HELP WITH THE SIGNAL FOR ME". It still drops, but no matter where I am now, I cant get the signal to drop all the way