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I tested an iPhone on AT&T's network in and around the Philadelphia, South & Central New Jersey, and Delaware areas alongside of my trusty Verizon phone. Dropped calls were the least of AT&T's issues; network connectivity issues was bigger issue. At least 65-75% of the time, the AT&T iPhone had no coverage. Swapped it with another device and ran the same routes again and the same issues existed, no coverage where the Verizon phone always had service. In the month of testing before we returned the phones, the AT&T iPhone lost countless phones calls, voicemails in many cases took days to retrieve; all-in-all I'd say that the phone was useless on AT&T's network about 65-75% of the time in and around a major city such as Philadelphia; that's pretty dam bad!

I left Cingular years ago because of a special corporate promotion from Verizon. At the time, Cingular had excellent coverage in the this area; however, Verizon simply offered us a better deal. Keep in mind this is pre-smartphone error, in fact, the Palm Treo 650 was just hitting the marketplace. I can say that without a doubt, whatever AT&T has done to Cingular's network; it's truly a shame because Cingular's service was awesome but I'm glad we decided to leave when we did. Since we've had Verizon, I had dropped only ONE maybe TWO calls on the Pennsylvania Turnpike near the Lebanon curve, that's it. The data is plenty fast (yes, it's okay that one cannot use the web and phone at the same time), the average speeds are consistent regardless of where we've travelled. Also it should be noted that almost everywhere we've gone, from Nova Scotia Canada to the Florida Keys, Seattle Washington to Detroit and just about everywhere in between, we've had 3G service, even in Yellowstone National Park; if that doesn't speak volumes for Verizon's network, I don't know what does.

Yes, we'll be switching to the Verizon iPhone in just a few short days; I've already strong-armed Verizon to move up our upgrade dates in order to abandon these horrible BlackBerry Storm devices.

Anyway, the network truly depends on the area of the country your located in, who is actually maintaining the network, and the terrain of the area in question. For Philadelphia, New York, Baltimore-DC, and Detroit; it's certainly not AT&T.

In my opinion, if you travel to Europe often, then a GSM carrier may be better in the long run; however, for those who spend the majority of their time in the US and Canada, with light travel to the Caribbean Islands; it doesn't really matter if you choose CDMA or GSM; YOU'RE COVERED...

Been on AT&T's network since 2008 (formerly on VZW) in the Phila area and I've had absolutely no network issues. At times data seem to be congested but nothing like you have experienced. Had BB Bold for 2 years and the IP4 since Sept.
 
Been on AT&T's network since 2008 (formerly on VZW) in the Phila area and I've had absolutely no network issues. At times data seem to be congested but nothing like you have experienced. Had BB Bold for 2 years and the IP4 since Sept.

A lot of the phonearena.com AT&T phone reviews are done in Philly and they never have complaints about connectivity or speeds in that area.
 
Been on AT&T's network since 2008 (formerly on VZW) in the Phila area and I've had absolutely no network issues. At times data seem to be congested but nothing like you have experienced. Had BB Bold for 2 years and the IP4 since Sept.

My main issue with AT&T and really their frequency is that the signal has a lot of difficulty getting through all types of obstacles (walls of any construction type). Oddly enough, AT&T does well in hospitals-where I work-but verizon completely drops out consistently. I've witnessed this in multiple states.
 
Don't Like AT&T then Switch, Verizon isn't perfect either, I just came from there, however why must everyone continue to bash AT&T, just wait everyone thinks Verizon is perfect I will be waiting to see the complaints, also you are not comparing them on equal playing fields because both have different types of service, and AT&T offers more for less to some degree.

I love how everyone thinks like 50% of AT&T customers will defect, more like 1-5% and I would be surprised if it is that high.
 
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