Michael N. Paris wrote:
> Right, some asian cdma phones use R-UIM cards which are compatable with
> SIM cards. So if you were from Korea and threw it into a GSM phone with
> a roam agreement with that carrier, would work. IDEN used SIM's.

On the SK Telecom phones, you put your SIM card from your GSM phone into
their CDMA phone. Whatever it's called, the SK Telecom phone took a SIM
card.