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Home / Tips and Tricks / Everything You Need to Know About Using Dual SIMs on the iPhone XR, XS & XS Max «iOS & iPhone :: Gadget Hacks

Everything You Need to Know About Using Dual SIMs on the iPhone XR, XS & XS Max «iOS & iPhone :: Gadget Hacks



One of the biggest advances in the new iPhone X S X S Max, and X R is the dual-SIM feature which allows you to use two mobile networks at the same time. Like Sinatra, Apple is known for doing things in its own way, so their dual-SIM setup is a bit different than you might think.

All three 2018 iPhone models are dual SIM, just not in the way most of us imagined. Traditionally, dual-SIM smartphones literally had two SIM card slots to allow the use of two networks. However, Apple went a different way and built its flagship so that only one Nano-SIM card is used and paired with embedded SIM ̵

1; eSIM – short.

In other words, Chinese variants of the latest iPhones will be shipped with the traditional dual-nano-SIM slots that give customers the ability to activate two off-the-shelf lines. For the rest of us, a second line will be created via eSIM in a future iOS update. While this may seem daunting from the outset, eSIM does more than it seems at first glance, and this could be a better choice on the road.

What is an eSIM?

Embedded SIMs, sometimes referred to as electronic SIMs, are not that new in the mobile world. Android devices such as the Google Pixel 2 and the Nuu Mobile X5 use the technology as a viable alternative to physical Nano-SIMs to store your phone number and user data associated with the cellular network. Apple has even used eSIMs in select devices like the Apple Watch 3 and the iPad Pro.

The eSIM is a non-removable chip that is integrated with the new iPhones. If you enable this chip, it works the same way as a physical SIM, for which the new iPhones also have a slot (hence the dual-SIM aspect – a removable and an embedded one). As an added bonus, you can store multiple eSIMs in your iPhone, although you can only use them individually. At this point we are still unsure how many lines you can program into the eSIM of an iPhone. If we know more about it, of course we will review it again.

Because eSIMS is embedded in the hardware of your iPhone in the form of a microchip, eSIMS is much smaller than your physical device's logic board and all its hardware components compared to a physical Nano-SIM. This reduces the overall cost that may play a role in why the iPhone X R starts at around $ 950 in China, compared to $ 750.

SIM card slot on an iPhone 6 S . Note the overall size with respect to the motherboard. Picture of Amboy Manalo / Gadget Hacks

You may feel a little uncomfortable using an eSIM to save your line as it is a way of tying you to your net and switching to one other companies to complicate better service. However, this is not the case, as the transfer of your line from one carrier to another via the eSIM of your iPhone is as easy as changing W-Fi networks. In fact, the technology behind eSIM is so disruptive that big carriers like it AT & T and Verizon have been notified, and the US Department of Justice has initiated an investigation in early 2018 to see if companies are working with the GSMA to bring the prevent eSIM development and adoption. The investigation revolves around her alleged attempt to influence mobile technology to prevent innovation and maintain dominance.

Which carriers support eSIMs in iPhones?

Due to the general lack of infrastructure to support the iPhone's dual-SIM functionality via eSIM Only a handful of large carriers from ten countries will offer eSIM support from the outset:

In the US, AT & T, T Mobile and Verizon dual-SIM functionality as soon as it is available through an iOS update. According to PCMag, Verizon plans to offer all of its regular plans for the eSIM on arrival, while T-Mobile and AT & T will most likely provide eSIM support on a roll-out basis. Sprint has confirmed with the page that it also wants to support eSIM, although no exact timeframe has been specified.

To repeat, variants of the iPhone X S X S Max, and iPhone X R with the standard dual -Nano SIM setup will be available only in China, Hong Kong and Macau.

Enabling a Line An eSIM

As mentioned above, the ability to enable a line with an eSIM, whether primary or secondary, is not available for the 2018 iPhones, but instead is provided via an iOS update. For this reason, you still need to activate and set up your brand new iPhone using the traditional Nano SIM method, setting the Nano SIM card number as the primary line.

Once available, creating a secondary line with your iPhone eSIM should be easy enough. Keep in mind that your iPhone needs to be SIM unlocked if you want to use it with two different carriers. Otherwise, you must activate a second line with the same network operator.

This means that it should also be possible to transfer your primary line out of your Nano SIM and reprogram it into your iPhone's eSIM to release the SIM card slot after you activate the phone. This allows you to use the physical SIM card slot when traveling or switching to a network that does not support eSIMs. Note that the old physical SIM card is likely to stop working when you move a line from a physical SIM to an eSIM.

Apple states that a new wire is created using a digitally stored eSIM on your iPhone X X S Max, or iPhone X R can be done either through QR code or by purchasing a plan Your mobile service provider uses his app. You can then freely set your primary and secondary line by tapping a destination number on the Mobile page of your Settings app, and you can choose Cell Plan Name to change the display name of a line.

In addition to assigning labels to your numbers You can also set up a default line for services that require mobile data, such as: FaceTime and iMessage, in addition to phone calls made and received with numbers not included in your Contacts app.

Pictures about Apple

It's worth it Note that as mentioned above, you can store more than one eSIM in your iPhone. However, you can only use one eSIM-based line at a time. To switch between eSIMs, you first need to go to the Mobile Settings page in the Settings app. There, select "Mobile Plans", tap the plan you want to use, and click "Turn on this line" to set the number for use.

With two (or more) active lines, you can make and receive voice calls and send and receive ordinary text messages (SMS) and picture messages (MMS). However, you can only use a mobile data network for Internet-based services such as FaceTime, iMessages and Safari

Make and receive phone calls

The iPhone X S X S [19659003] Max, and X R handle two active lines in a direct manner. You use your default number set to make or receive calls to contacts you have not yet called. You can manually call a contact with your secondary number, and if you do, your iPhone will automatically use that number to communicate with that contact.

From the information gathered so far, Apple lets you freely set the phone line that will be assigned to each contact via an option on its info page. You can also spontaneously change the phone numbers before you call, most likely by tapping the Primary button in the Dialer app and then selecting the line you want from the prompt that appears.

Images about Apple

When you call a contact in your Favorites list, swap numbers by tapping the blue information button on the right, then tap your current phone number and dial the other number

During a call, all incoming calls on the second line will not result in call waiting, but directly to your voicemail (if you have one set up). More importantly, due to a recent call on the other line, you will not receive missed call notification for incoming calls on the second line.

For this reason, we strongly recommend that you set up call forwarding to divert calls between your two lines. Avoid important phone calls. In addition, call waiting and missed call notifications will continue to function normally if they are received at the same number as your active call.

Sending and Receiving Messages

For iMessage and FaceTime, your iPhone is X S X S Max, or iPhone X R uses the mobile data of the phone number you have assigned as the default line. As with phone calls, you can always change the line using the "iMessage & FaceTime" option in the "Settings" application.

If that's not enough, you can also change the numbers within the conversation. Click the blue Primary button (shown below).

Image via Apple

Managing your mobile data

As mentioned earlier, the iPhone is X S X S Max and X With R you can use only one line at a time with respect to cellular data, as opposed to phone calls , SMS and MMS texts that are active for both lines. You can always change which line you want to use for the Internet by simply clicking "Mobile" and "Mobile" in the Settings app.

Additionally, you can also access the "Primary" or "Secondary" tabs under "Cellular Plans" in "Cellular" in the App "Settings" to enable or disable cell data for each line.

Cover photo of Dallas Thomas / Gadget Hacks

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