HOW TO

How to use Dual SIM on iPhone?

Having Dual SIM on iPhone was an old wish for apple users through the years, but after introducing iPhone 11, the dreams come true.

According to Apple’s official site, In China mainland, Hong Kong, and Macao, iPhone 11, iPhone 11 Pro, iPhone 11 Pro Max, iPhone XS Max, and iPhone XR feature Dual SIM with two nano-SIM cards. This gives you two phone numbers to make and receive calls and text messages.

It means that these iPhones can manage two phone lines simultaneously — calls coming into either line will ring your phone, and you’ll be able to easily make calls and send texts from either line without reconfiguring settings or swapping out SIM cards.

Also, With iOS 13, both of your phone numbers can make and receive voice and FaceTime calls and send and receive messages using iMessage SMS and MMS.* Your iPhone can use one cellular data network at a time.

But how to control this new feature? On the upcoming lines, we will guide you to do that In the right way.

How to use Dual SIM on iPhone?

First, note that this feature is available In China mainland, Hong Kong, and Macao, iPhone 11, iPhone 11 Pro, iPhone 11 Pro Max, iPhone XS Max, and iPhone XR models and not existing in other editions.

These models should have iOS 12.1 or later, and you should two nano-SIM cards.

After ejecting your SIM tray, you will notice only one place for SIM but is designed to take 2 nano-SIM one on the top and one on the bottom, like this photo.

How to use Dual SIM on iPhone?
How to use Dual SIM on iPhone?

After entering the 2 sims, insert the SIM tray back into the device completely and in the same orientation that you removed it.

Now, label your plans and choose the use of each sim, you can label one plan Business and the other plan Personal.

You can choose which phone number to use for making or receiving calls and messages, and Choose which cellular plans you want to use for iMessage and FaceTime. With iOS 13, you can choose either or both numbers.

On this screen, choose a number to be your default, or you can choose which number is to be used only for cellular data.

How to use Dual SIM on iPhone?
How to use Dual SIM on iPhone?
Your other number will be your default. If you want your iPhone to use cellular data from both plans, depending on coverage and availability, turn on Allow Cellular Data Switching.

Set a default number for every contact:

You can choose a default SIM that you can use it as a default plan only for one contact, you can specify which number to use for your calls with a contact. Follow these steps:

  • Tap the contact.
  • Tap Preferred Cellular Plan.
  • Tap the number you want to use with that contact.

Now that your iPhone is set up with two phone numbers, here’s how to use them.

Switch phone numbers for a call:

You can switch phone lines before you make a call. If you’re calling someone in your Favorites list, follow these steps:

  • Tap  .
  • Tap the current phone number.
  • Tap your other number.
  • If you’re using the keypad, follow these steps:
  • Enter the phone number.
  • Tap the phone number, near the top of the screen.
  • Tap the number you want to use.

Send messages with iMessage and SMS/MMS

  • Open Messages.
  • Tap the New button, in the upper right corner of the screen.
  • Enter your contact’s name.
  • Tap the current phone number.
  • Tap the number you want to use.

Change your cellular data number

One number at a time can use cellular data. To change which number uses cellular data, follow these steps:

How to use Dual SIM on iPhone?
How to use Dual SIM on iPhone?
  • Go to Settings > Cellular, or Settings > Mobile Data.
  • Tap Cellular.
  • Tap the number you want to use cellular data.

If you turn on Allow Cellular Data Switching, then while you’re on a voice call on your voice-only number, that number automatically switches to use voice and data.* This lets you use both voice and data while on the call.

If you turn off Allow Cellular Data Switching and you’re active on a voice number that isn’t your designated cellular-data number, then cellular data won’t work while you’re on the call.

To turn on Allow Cellular Data Switching, follow these steps:

  • Go to Settings > Cellular, or Settings > Mobile Data.
  • Tap Cellular Data.
  • Turn on Allow Cellular Data Switching.

Manage cellular settings

To change your cellular settings for each of your plans, follow these steps:

  • Go to Settings > Cellular or Settings > Mobile Data.
  • Tap the number you want to change.
  • Tap each option and set it as you normally would.

Note: these steps on the top is according to https://support.apple.com/

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