Cdma phones search for specific towers that are pre programmed in the phone. It is a stupid feature(if you can call it a feature). I have tried in the past to get another carrier's phone activated on US Cell's network. You can get it going, but it will never find the towers you want.
Posted from my CrackBerry at wapforums.crackberry.com
You could call us biased, and you wouldn’t be wrong, because at CrackBerry we love BlackBerry and think you should own a BlackBerry Smartphone! We also work as a community support and marketing partner with BlackBerry and BlackBerry Mobile. Our immense passion and knowledge of BlackBerry by our editors and community members make this the best resource for BlackBerry you’ll find anywhere!