The Cell Phone Mysteries, What is Dual Sim?

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If you've followed the developments in the China cellphone wholesale market lately it seems that one SIM card is not enough, and there's a proliferation of mobile phones with at least two SIM cards. Major wireless cell phone manufacturers like Samsung, Nokia and Motorola have been slow to catch up with Samsung only just releasing a model at the time this article was written. So what's going on? Are the makers of these China cellphone wholesale brands that busy that they need two SIM cards? Did it only happen to so that they could avoid getting phone calls from their partner and how can it benefit ...
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