Open Question: What does "locked" and "unlocked" mean when it comes to cell phones?

I’m trying to buy a cell phone off e-bay, what does “locked” and “unlocked” mean? What’s the difference?

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Open Question: What does "locked" and "unlocked" mean when it comes to cell phones?

Tags: answer, blackberry, block-user, cell-phones-amp-plans, Contributor, japan, nokia, old, phone, Pictures, rating, report-abuse

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