How to Use Dual Sim in iPhone Xs, iPhone XS Max: eSIM Settings Explained

🗓️ December 4, 2020 By ✍️ Jaysukh patel

One of the most awaited function that users are waiting over the years has been finally available in iPhone Xs and iPhone Xs Max. The feature are we talking about is Dual-Sim support. In my experience, the iPhone is an awesome product among all the, but before this Apple Event 2018 there was only one feature was lagging that was dual sim support. However from now onwards iPhone Xs and iPhone Xs Max have all the hardware and software supports that we were looking for, isn’t it?

With dual sim, you can have two phone numbers in a single phone, and there you can bifurcate them as the Business number and personal number. There are a lot more facilities are released with dual sim support which is mentioned below. Keep reading and use your dual sim iPhone with more flexibility.

You Can use Two neon sim card in mainland China, Hong Kong, and Macau.

How to use Dual SIM iPhone XS Max and iPhone XS

Complete Guide to Setup and Use eSIM on iPhone XS, iPhone XS Max

1. Fresh Setup Cellular Plan With eSIM on iPhone Xs Max and iPhone Xs

It takes a few steps to set up the cellular plan on eSIM,

  1. Go to the “Settings” app.
  2. Tap on “Cellular”.
  3. Next, tap on “Add Cellular Plan”.
  4. Open the iPhone’s camera and scan the QR code provided by the carrier.
  5. Sometimes you may receive a confirmation code from the particular carrier, so you have to enter it and activate the eSIM on your iPhone Xs and iPhone Xs Max.
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There is also another way to add a cellular plan. Yes, you can also add cellular plan manually by tapping on “Enter Details Manually” on the bottom of the screen and complete the setup.

Also, use Carrier app for eSIM Activation,

Else you can download the carrier app and then activate and select the cellular plan right from the app.

Find Cellular Carrier Name and Signal Strength

2. Quickly Switch eSIMs on iPhone Xs Max and iPhone Xs

The thing that Apple still doesn’t include in to use two sims simultaneously. However, you can store two sims but can use only one at a time.

  1. Launch “Settings” in your iPhone.
  2. Tap on “Cellular”.
  3. Now, tap on “Cellular Plans”.
  4. Select the Plan to be used.
  5. lastly, “Turn on” This Line.

Check Recently Added Cellular Settings

In order to reduce confusion between two numbers, you can label the number as Professional or Personal.

3. Give a name to Cellular Plans

This option lets you to select the particular number that you want to use to call or receive call and texts and along with that set the phone number to use cellular data.

Give a name to Cellular Plan on iPhone XS or iPhone XS Max

  • Go to “Settings”.
  • Open up the “Cellular” option.
  • Select the number to change labels.
  • Tap on “Cellular Plan Label” and enter the custom label or choose among the listed ones.


Use Primary as your default line:

If you select this option then FaceTime, iMessage, SMS, Data and the voice will use your primary line by default. And the second line will be only used for SMS and voice.

Use Secondary as your default line:

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If you go for Secondary line then it is totally opposite to the primary line. As voice, SMS, data, FaceTime and iMessage will all use secondary line and only the SMS and voice will use a primary line.

Use Secondary for Cellular data only:

The line itself tells you the meaning, it will use secondary line only for data.

4. How to Manage Cellular Settings

From here you can manage several options as per your requirement in your iPhone Xs and iPhone Xs Max.

  1. Open “Cellular” from the “Settings”.
  2. Tap on “Phone Line”.
  3. There you can open various options and customize them.

5. How to set the default number for calls in iPhone

This is the point where many users waste their time in selecting contact number to call. Instead, you should set the default number and then the iPhone will automatically use that number.

set default number for calls

  1. Open up particular contact.
  2. Next, click on “Preferred Cellular Plan”.
  3. Lastly, enter the phone number that you want to use with that contact.

In case if you are busy on a call with someone and at that time on another SIM you are receiving a call, then you will get voicemail and it only works if you have enabled this function. Therefore you will not get notification of missed-call from another number.

Switch Phone Number Before Call, Message, SMS/MMS, iMessage, Face Time.

6. How to Switch phone numbers for a call

Before calling someone here’s how you can switch number.

  • From the Phone app, tap on the information button next to the contact.
  • Tap on the number that you are using currently and then there only go for the new number.
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Switch phone numbers for a call

7. How to Select which number uses iMessage and FaceTime

Similarly, in iMessage and FaceTime, you can also change the number.

Which Number Using iMessage and FaceTime

  1. Launch “Settings” and open “Messages”.
  2. Next, go to “iMessages & FaceTime Line”.
  3. Enter or select the number that you want to use.

8. How to Switch the phone number before sending SMS or MMS

To change phone number before texting someone  then follow the steps,

  1. Go to “Messages” app.
  2. On the top right corner, you will see “New Button” tap on it.
  3. Its time to enter the name of the contact and tap on your current number.
  4. Select the number that you want to use.

9. How to Change Cellular Data Number

If you don’t want to use cellular data from selected sim then switch the cellular data number.

Change the Cellular Data number on iPhone XS or iPhone XS Max

  1. Go to “Cellular” followed by “Settings”.
  2. Tap on “Cellular Data”.
  3. Finally, choose one number that you want to use over cellular data.

Now the time is over to use Extra Benefits from Two carriers that have specific offers for Data, Call, and More. After installing eSIM setup in your iPhone XS Max, iPhone XS.

Jaysukh Patel
Jaysukh Patel

Jaysukh Patel is the founder of howtoisolve. Also self Professional Developer, Techno lover mainly for iPhone, iPad, iPod Touch and iOS, Jaysukh is one of responsible person in his family. Contact On: [OR]

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