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Samsung Intros Its First Dual-SIM Smartphones

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two SIM cards?


Dec 22, 2011, 9:24 AM
So that means two numbers in one phone? That would be great for personal line and business line in one device. I've been wanting this for years!

Dec 22, 2011, 11:22 AM
Same here, been wanting to have a separate business number without carrying another phone.

I wonder how this could be implemented for cdma carriers that don't use sim cards? Maybe it could work with Voice-Over-LTE technologies that require sim cards.

Dec 22, 2011, 11:36 AM
Dream on for NA. Carriers won't sell phone like this because they don't want you cross shopping service since the phones are subsidized. Article doesn't mention what radio frequencies are supported, but I'm sure it's only a matter of time before you can buy these unsubsidized somewhere.

For CDMA, it can be done at the Voice and SMS level fairly simply, but since the networks are even more locked down, it's even more unlikely since it's not a simple SIM card and the carriers have some control over the MEID/ESN numbers that can be registered.

Dec 24, 2011, 9:19 PM
I'm reasonably sure that all of the carriers can set you up a second number that rings into your phone. How it alerts you as to which line is getting the call I don't know (distinctive ringtone, maybe).

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