Depends on where u are compared
To the tower
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Your signal strength is determined not only by the presence of a cellular signal but also by the number of users attempting to use that cellular site at the same time. The same thing can happen with landline service. During emergencies such as snowstorms, tornadoes and hurricanes, you might not get a dial tone. This happens when the network exceeds its capacity. Of course, landlines have a higher capacity than cellular service.

That's the point... its there system. My friend called and they try to sell him a new phone. Do you know anyone who has At&t to compare service provider with at your location and see if they get the same reading.

What kind of phone/provider did you have before iphone.

I would try to rule out the phone being the problem first.

Well thanks for the story but that doesnt really help me..

My friend has At&t, i sent him a text this morning, he got it 4 hours later. He told me it also happen with other text messages sent to him by other people, so it wasn't just me, or one time incident.

With the phone being in the same room and not even moving at all? I have an Iphone 3GS and I'l be sitting at home and I will have full signal one minute and the it drops back down to the E network or no service at all. How is this even possible? Im missing alot of calls because of this and its becoming very annoying. Is there anything I could do to fix it? Should I call ATT? Should I be posting this in another forum? Please help.