iPhone Xs Dual SIM Question

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iPhone Xs Dual SIM Question

This may be a bit premature ... but I have a question about how to use the iPhone Xs's dual SIM feature.

I currently have AT&T wireless on my iPhone 6. I travel to the UK often and while there use an old iPhone with a UK "Three" carrier SIM. I'd love to be able to use these two SIMs in an iPhone XS, that is, AT&T as the eSIM and a Three SIM in the second SIM slot.

There's one issue, however. When in the US I want to use only the AT&T SIM, and while in the UK use only the Three SIM - otherwise the second SIM will connect to a local carrier and I'll be charged by for this service.

Will there be a way to select which SIM is to be used and turn off the other SIM? I don't see anything in the documentation for iOS 11 or iOS 12 to address this situation.

Thanks.

iPhone 6, iOS 11.1

Posted on Sep 12, 2018 3:16 PM

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Answer 1

Phil0124

Level 10

217,322 points

Sep 12, 2018 3:45 PM in response to jas2

Apparently it can be turned off:

Do note that the secondary sim is an e-sim for iPhones outside of China. So the secondary carrier you choose must support the E-Sim setup.

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Answer 2

deggie

Level 10

167,525 points

Sep 12, 2018 3:40 PM in response to jas2

As far as they showed there is not way to turn it off, but if you are that far away from your carrier you will not be able to connect anyway so the 2nd one becomes moot in your case. You are also going to have to check to see which has to be the primary.

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Answer 3

Luc@90

Level 1

8 points

Sep 30, 2018 2:37 PM in response to Phil0124

it does not work for me. it keeps switching itself back on! - I hope this is a bug and will be resolved soon!!

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Answer 4

jas2 Author

Level 1

53 points

Sep 12, 2018 6:29 PM in response to jas2

Thanks for all the useful replies. (For the sake of this discussion, I suggest ignoring the issue of which carriers will accept an e-SIM since most probably will in the near future.)

Unfortunately, I don't think deggie's comment about the issue being moot is correct. In my experience, if I turn on my AT&T iPhone in the UK (or Mexico, for that matter), it will connect to an AT&T-partner local plan and AT&T will charge me $10/day for an international connection. Ditto with my UK Three iPhone in the US - if I turn it on while in the US, it will connect to a US carrier automatically. I'm not sure if turning-off roaming has any effect on this behavior. Of course, if I'm wrong, I'm eager to be corrected.

The Apple support page, "Learn about Dual SIM ..." is also not very helpful in this regard. It does not appear that one can completely turn off the secondary SIM.

Many of the press reports on the iPhone Xs say that the dual SIM is particularly useful for international travel.

The basic issue, however, is how to use the dual SIM iPhone Xs for international travel without incurring international roaming charges on the secondary SIM.

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Answer 5

jas2 Author

Level 1

53 points

Sep 30, 2018 6:06 PM in response to Luc@90

Luc@90, could you please provide a bit more information - your settings, general location, etc.?

Thanks.

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Answer 6

Sep 30, 2018 6:19 PM in response to Luc@90

It shouldn't work for you. It hasn't been activated yet by Apple.

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Answer 7

razmee209

Level 10

198,708 points

Sep 12, 2018 3:41 PM in response to jas2

jas2 wrote:

This may be a bit premature ... but I have a question about how to use the iPhone Xs's dual SIM feature.

I currently have AT&T wireless on my iPhone 6. I travel to the UK often and while there use an old iPhone with a UK "Three" carrier SIM. I'd love to be able to use these two SIMs in an iPhone XS, that is, AT&T as the eSIM and a Three SIM in the second SIM slot.

There's one issue, however. When in the US I want to use only the AT&T SIM, and while in the UK use only the Three SIM - otherwise the second SIM will connect to a local carrier and I'll be charged by for this service.

Will there be a way to select which SIM is to be used and turn off the other SIM? I don't see anything in the documentation for iOS 11 or iOS 12 to address this situation.

Thanks.

Here is Apple document support page Learn about Dual SIM with your iPhone Xs or iPhone Xs Max - Служба поддержки Apple

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iPhone Xs Dual SIM Question

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