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How dual-SIM works with Apple's iPhone XS & XS Max



One of the new features of the iPhone XS and XS Max is dual SIM support, which allows people to use two phone numbers on the same device. This is how it works in countries where eSIM is available.

  Apple iPhone XS

Setup

This is of course the first time: Only 1

0 countries support Apple's eSIMs, Austria, Canada, Croatia, Czech Republic, Germany, Hungary, India, Spain, UK, and the United States. Even then, the carriers will also offer compatibility, and initially, the only supportive US carriers for XS and XS Max will be AT & T, T-Mobile and Verizon. Sprint plans to reset technology but has not yet a date.

iPhone owners will also need an update to iOS 12 that comes "later this year" and a carrier's official app or special QR code.

Many people already want a nano SIM card from the main operator, in case adding a second number involves adding a plan for eSIM. If you are using a carrier app, the process is as simple as using that app to purchase a plan – in the case of a QR code, you must open the Settings app press Cellular Cellular ]then "Add Cellular Plan." You will be presented with an option to scan the code.

In particular, you will be able to use eSIM instead of a nano SIM, regardless of a single account or more, but you will not be able to have more than one eSIM account active at a time. For most, the best option would be to have a nano SIM primary.

When multiple plans are running, you will be prompted to tag them. There are preset options like "Primary", "Secondary", "Business" and "Travel", or you can only create your own. To change a label later, go to the Settings app s Cellular menu, touch the number you want to change, then Cellular Plan Label ].

  iOS 12 Dual SIM Labels

You will also be asked to enter a default number, which is critical since it will be the only one that supports the full range of mobile services. Secondary numbers can normally only mark voice and SMS.

  iOS 12 Dual SIM lines

The exception is an option to transfer a secondary line of data, which may be useful for traveling – this will let people call or sign in to your main number, but avoid unnecessary roaming charges with a local SIM card. Be warned that in addition to voice and SMS, iMessage and FaceTime will still go to your primary, which can retrieve data charges.

Calling up

  iOS 12 Phone App

After you get things up and running, you can switch numbers before calling the phone app by pressing the current directly from the keyboard or otherwise pressing the "i" button first when browsing Favorites. Picking an SMS number is similar, but you press the number after starting a new call and selecting a contact.

Changing the line for iMessage and FaceTime is more complicated since you must enter Settings Messages and then iMessage & FaceTime Line . The chosen option is permanent until you reverse it.

There is one last thing to note, which is iOS 12's status line information. You normally see only signal strength for one line at a time, but you can see how a secondary does it by opening Control Center.

  iOS 12 Control Center

The first wave of advance orders for the iPhone XS and XS Max is on its way. Quick-trigger buyers should see their orders delivered on September 21st.


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