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Discussion in 'Alltel Forum' started by Cellfonian, Jun 1, 2006.
Do Alltel U phones use sim cards? VERy short question but i hope i get a lot of replys!
No they do not. Only GSM and I think some Nextel phones are able to use SIM cards. No CDMA carriers use them.
Well centennial and cingular use sim cards.
Yes they do, GSM networks require SIM cards in the phones. But CDMA networks don't need SIM card for the network to see them.
Noooo!! Hey, do you think a phone that can have a sim card in it can also be used as a CDMA phone. PLease tell me!! :headscrat :speechles :thumbsdow issed: :crying:
Yes, there is a SIM equivalent in the CDMA world - it is called a RUIM (short for Removable User Identity Module). However, none of the North American CDMA operators offer support for RUIMs at this time.