I'll be traveling to Europe, and I need to know if the Tracphone / Prepaid Samsung SPH-A660 can be used in Greece if I have this phone unlocked? Also, I do not see anywhere in the back cover where a sim card would be. The back slides off (the battery) but again, I do not see any place to install a sim card. I greatly appreciate any help from anyone who knows the answer to my question. Also, it says Portable Dual Band Tri-Mode Phone on the inside of the phone. Thank you in advance.


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