Samsung E, U, X, D ... What is the meaning of classification What?

Users questions: What it means for each series of What? Why do another?
Experts answer: Samsung is based on different features and configuration to the named P-Premium-multimedia phone E-Exclusive-stylish mobile phone handsets D-Deluxe-XX-Generation Business - Entertainment mobile C-Classic-public phone I-MiT-smart phone Z-UMTS-support UMTS mobile phone is 3G mobile phone
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