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How the Dual SIM (Two Chips) Feature of New iPhones Works

Among some of the features of the new XS / XS Max iPhones and iPhone XR that most share users' opinions, I believe the functionality Dual sim (support for two chips) is on top.

Despite being present in iPhones for the first time now, in 2018, this technology in recent years and other manufacturers have already used it in their devices for several years. For the XS, XS Max, and XR iPhones, Apple chose to use a YES physical It is another electronics except in China, where eSIM technology is not present and, for legal reasons, is probably not so early.

According to Apple's website, even in several countries that will market iPhones with eSIM, this functionality will not be available immediately as it depends on whether or not carriers support such technology and an iOS 12 update that will be released later. Ma is working with its partners to make it expand as quickly as possible, but the fact is that in many regions (such as Brazil) there is no predicting when this functionality will be available.

The technology used for eSIM, in turn, is also recent and the company itself already uses it in two gadgets: on iPad (Wi-Fi + Cellular) and Apple Watch (GPS + Cellular). In the new iPhones, Apple has adopted the feature called Dual SIM Dual Standby, or DSDS, which means both numbers can make and receive calls, depending only on the contracted plans. However, if one number is on a call, incoming calls on the other number will go to voicemail which will also depend on your plan.

You might be wondering, "But I can put a call on hold and answer another call, how can this not be possible on the new iPhone?" First, this will be possible as long as both calls are made. to the same mobile number. If you are on a call using a chip and the other number also receives a call, you will not be able to answer it.

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Official Image:

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To avoid missing an important call, Apple recommends enabling call forwarding and forwarding all calls from one number to the other. To set what your primary and secondary number will be, there will be a section within the iOS 12 “Settings” app of these devices in order to set a default number and define which features will be used from the enabled numbers like calls, SMS, iMessage , FaceTime and data usage.

Initially, Apple is working with some carriers to enable eSIM on new iPhones, including AT&T (US), T-Mobile (US) and Vodafone (Europe). Check out the full list here.

As we said, it may be that this functionality also takes time to reach Brazil. However, as at least one carrier here has already started working with this technology for Apple Watch, let's hope he and others adopt the new feature for iPhones as soon as possible.

To set up eSIM, carriers will offer a scanable QR code through the iPhone's own camera, which will allow you to set up your contracted plan.

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Official Image:

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And here is a curiosity: with two SIMs enabled, the signal cone on the iPhone displays the intensity of the two carriers; the larger bars indicate the standard SIM signal, while the smaller bars (just below) the secondary SIM signal.