04-17-2007, 03:54 PM
That's a good question, of which I don't have an answer.
However, I use Cingulars' GSM system and I've changed phones a couple of times in the past year, without it affecting my service contract (or need to extend it).
Once you have a phone with the SIM card, all you need to do it pop it into another phone and you're good to go.
My phone needs are very modest, i.e. I don't like phone cameras, blackberries, voice mail and much of the bells and whistles, so I buy those Cingular GO Phones, toss the SIM card that comes with the phone, insert mine and WhaLa! New phone!
All for about thirty bucks.
However, I use Cingulars' GSM system and I've changed phones a couple of times in the past year, without it affecting my service contract (or need to extend it).
Once you have a phone with the SIM card, all you need to do it pop it into another phone and you're good to go.
My phone needs are very modest, i.e. I don't like phone cameras, blackberries, voice mail and much of the bells and whistles, so I buy those Cingular GO Phones, toss the SIM card that comes with the phone, insert mine and WhaLa! New phone!
All for about thirty bucks.