Is it possible to use both AT&T and another service if I am traveling to a country in which I can't use AT&T?
Md Ariful Islam
বিএসসি(সিএসই)
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এমবিএ(মার্কেটিং)
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Dr. Md Rushad Rahman
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,
পিজিটি(মেডিসিন)
You can if you have an unlocked phone. If your phone is locked by AT&T, you cannot use any simcard except an AT&T simcard. An unlocked phone can use any sim.
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