[medic]

My service is through a local carrier...Cellular One. A while back I decided to get another phone. Since my local "store" did not have what I wanted, I went to ebay. The phone I had just before switching was a TDMA phone. In order to get a compatible phone I had to get an AT&T TDMA phone.

After finding a phone on ebay, I went to my provider and they put my number in the phone and activated it. The only thing is that it has always said AT&T on the display as opposed to Cellular One. It has worked perfect.

I am now considering upgrading to a GSM phone. Now the question. Does a new phone, (one from ebay), have to be a AT&T GSM phone or simply a GSM phone that is unlocked? Therefore I could just take out the sim card in my free phone from Cellular One and put it in the one from ebay.

Thanks.

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[wirelessfan]

Does a new phone, (one from ebay), have to be a AT&T GSM phone or simply a GSM phone that is unlocked? Therefore I could just take out the sim card in my free phone from Cellular One and put it in the one from ebay.

Any unlocked GSM phone will work on any GSM carrier's network. You may have to do some customizing and simple coding to get data to work properly but customer service should be able to help you with that.

As far as voice calls go, you can pop your SIM card in any unlocked phone and have no problems immediately making voice calls.