Question by david a: how do you know if your cell phone is “unlocked” and if so, can my cingular phone be signed up to sprint?
Answer by fdx098
If you bought the phone from Cingular it is locked to the Cingular network, and unless Sprint uses Sim cards (I don’t personally know) like your Razr does you cannot use that phone anyway (It uses a Sim card)…..Unlocked phones only work on networks that utilize sim cards, Cingular being one of them, also all phones bought from any carrier will all be locked to there own network unless you buy a phone that has been “unlocked” from a third party seller
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