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Specs on second sim on Moto G dual-sim version

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evildave_666
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Default Specs on second sim on Moto G dual-sim version

Is the second SIM WCDMA 3G voice capable or is it only GSM as most dual-sim phones out there?

I can't seem to find any information on it, and this is an important piece of data for people living in countries with no 2G GSM network.
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lcdiniz
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The second sim is GSM.

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evildave_666
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(Last edited by evildave_666; 3rd February 2014 at 03:09 AM.)
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Originally Posted by lcdiniz View Post
The second sim is GSM.

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In other words, useless for Japan (where all voice calls go over WCDMA and there is no GSM network).
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xford
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Info 2 Clarification

Quote:
Originally Posted by evildave_666 View Post
In other words, useless for Japan (where all voice calls go over WCDMA and there is no GSM network).
You are right in that it is useless in Japan. However, just to clarify the issue: Both SIM slots are 3g capable, but the phone forces the SIM card that is not used for data to 2g mode. Only one of the SIMs can be used for data at a time, just as you can only send texts or make voice calls through one at a time so it makes sense in any other country...

What is not clear is whether this is a Motorola decision to save battery or imposed by the chip set used or an Android OS issue. Covia Fleaphone has same issue, and provides a shortcut to switch the active SIM (active=3g enabled SIM), so it seems to be not just a Motorola decision...

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jaspreet997
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I believe it has only one 3g radio in it and used by whatever Sim is being used for data So its a hardware issue

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xford
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Originally Posted by jaspreet997 View Post
I believe it has only one 3g radio in it and used by whatever Sim is being used for data So its a hardware issue
Sounds about right... It is a real pity how bad the documentation/specifications info is on dual sim phones. Make it very difficult to pick the right one, several people now claim that the Xperia M2 works with 3g on both SIMs simultaneously, but can't verify this...

At the same time I guess Japan (where I use it) is an unusual case, most places still have 2g, and Japan only recently started selling separate SIMs...

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