Yes and No.

This is where unlocked/locked becomes important. If your friend has an unlocked phone, OR they use the same provider as you, then the answer is YES, your SIM card will work in their phone, your phone book should be available, and the call will be billed to you.

However, if your friend's phone is locked and they use Sprint and you use AT&T (for example), the answer is NO, it will not work.

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by pike edited by Optimized
last modified: 2004-06-10 18:36:23