iPhone changes the primary and secondary numbers

If you insert two SIM cards in your iPhone 11 or other dual-SIM enabled device, you can follow the steps below to select the number you want to use for calls.

1.Toggle within the dial pad.

Before or after entering the ** number you want to dial, click the number selection button at the top to select another number, and click the dial button directly after selection to call through that number.

2.Call a contact in your Contacts list.

On models with Dual SIM, when you call** or text a contact, iPhone defaults to the same number that you last used to communicate with that contact. To choose a preferred number for calls and SMS MMS conversations, select the contact, tap the Default button below the contact's name, then choose another number.

3.Call a contact in your favorites.

On an iPhone with a dual SIM card inserted, iPhone chooses a number for the call in the following order: the contact's preferred number, the number you used to last talk to the contact, and the default voice number!

Extended Information: Tips to Extend iPhone Battery Life:

1.Make it a good habit to recharge.

Charge the battery in time when the iPhone prompts a low battery to avoid automatic shutdown caused by too low a battery, and try to replace the battery if the battery efficiency is less than 80%.

2.Upgrade to the latest version of iOS 14

Apple has added a new feature called "Optimize Battery Charging" in iOS 14, which can intelligently learn and judge the user's usage and charging habits, making the charging process more balanced, thereby slowing down the aging of the battery and improving the battery life of the iPhone to a certain extent.

How to view: The "Optimize Battery Charging" function can be viewed in Settings - Battery - Battery Health

3.Disable background app refreshes.

Since iOS 7, apps can and do use battery life when running in the background. You can see how much time the app is running in the background. If an app runs out of too much power when it's not in use, you can disable background app refresh to prevent it from running in the background.

If the app is draining too much battery, we can also choose to uninstall it!

4.Enable Low Power Mode.

iOS 9 adds a new "Low Power Mode" feature that allows your phone to save more power. When Low Power Mode is enabled, your screen dims slightly, restricting background processes, slowing down your processor slightly, or reducing the amount of energy your device needs during normal use.

How to do it: The easiest way to enable this feature is to swipe down from the top right corner of your iPhone and then the battery icon. Or you can enable the low power mode in Settings > Battery > Low Power Mode.

You know, some push notifications, app notifications, email read notifications, and so on, all of these can shorten the battery life, so if you want your iPhone to have a longer battery life, it's best to turn it off. Notifications can be turned off in "Settings" for each app.

The secondary card and the primary card share the same traffic. The main and auxiliary cards share ** discount and cannot be re-opened separately**. Regardless of the recharge of the main and secondary cards, the dual cards are displayed.

China Unicom's 3G data supplementary card business means: you can apply for a supplementary card, which is generally designated by China Unicom as a new card, and put it in a wireless Internet terminal or iPad and other devices that support the WCDMA network for high-speed wireless Internet access, and the data traffic generated will be recorded in your original main card**. The voice, SMS, MMS, and data communication functions of the original primary card will not be affected.

At the same time, the data supplementary card and the primary card can access the Internet at the same time. The supplementary data card only has the function of Internet access, and does not have other functions such as voice, SMS, and MMS. The HSPA+ function cannot be activated separately for the data supplementary card, nor can the HSPA+ function be used.

A primary card can only open one secondary card, and a certain monthly function fee will be charged. For example, Hunan Unicom launched a supplementary card of 5 yuan a month.

It is recommended to go to the nearest Unicom business hall to handle it. How it works:

If the two telecom cards are bound, the existing main card cannot be replaced with an additional card, and the secondary card cannot be replaced with a primary card.

The main card bound to Telecom Broadband is signed with China Telecom, and it cannot be unbound in the contract.

Mobile phones and broadband are currently a **whole, because the main and secondary cards of the mobile phone are shared a**, and the broadband is currently bound within **, 04

You can check the ** description in the online business hall of the telecom, or call customer service for inquiries.

Note: You can bring the original ID card of the main and auxiliary card to the nearby business hall to apply for the replacement of the auxiliary card.

The effect of the use of the main and secondary cards of the telecom is the same, and there is no difference between the replacement and the replacement for the user.

If you want to replace the primary card, you need to bring the owner's ID card to the nearby telecom business office, apply to cancel the supplementary card as a separate card, and then turn on the primary and secondary card permissions of the original secondary card, and then set the original primary card as the supplementary card of the original supplementary card.

If your ** agreement has expired, you can go to the telecom business hall with your ID card. However, the use of the main and secondary cards is the same, and they can all be shared**The free call time, traffic, etc.

Apple's method of switching the main number and the secondary number of the call is as follows:

Tools Raw materials: iphone11, ios dial 1, select the dial icon of the phone to enter.

2. Once entered, click on the options below or on the dial pad.

3. Once you're in, click on the main number option at the top.

4. After clicking, select the sub-number blind option you need to use below.

5. After clicking, you can switch the secondary number, and when you dial ** after switching, you will use the secondary number to dial.

1. Turn on your phone, find the settings option on the desktop of your phone, and click to enter.

2. In the settings interface, find the cellular network option and click to enter.

3. In the cellular interface, find the card number you need to set and click to enter.

4. Enter the number card setting interface and click the cellular mobile tab to enter.

5. In the cellular mobile label interface, you can set the main number and secondary number.

iPhone mobile phone to set the main card and supplementary card function, you can click on the cellular network in the settings, you can see two SIM numbers inside, click the card to be set as the main number, click on the cellular network tab, set the card as the main number, go back to choose to enable 4G, then select the function of the main card, and then click on the supplementary card number to enter, click on the cellular network tab, and set the supplementary card label as the supplementary card.

The iPhone 12 has a primary card above the card slot and a secondary card below

iphone12 to design the main number and secondary number, just insert the required dual cards directly into card 1 and card 2.

Zhang 12, let's set up the main number, the second number borrowed the main number, and the official ** consultation of the second number is.

1. Take Apple 11 as an example, first open the "Settings" in the phone;

2. After entering "Settings", click to enter "Cellular Network";

3. Here you can switch the main number and the secondary number to connect to the network in the "Cellular Data", 4. Switch the main number and dial the secondary number in the "Default Voice Number";

5. In the "Cellular Number", you can set to enable or disable the main number, secondary number, etc.

The following takes the iPhone 12 mobile phone (the system version is iOS 14) as an example to illustrate the specific operation method:

1. Insert the two SIM cards into the Apple iPhone and turn them on, and click [Settings] on the main interface to enter the system settings menu.

2. Click the [Cellular] option in the system settings menu, and select the number that needs to be set as the primary and secondary card in the cellular mobile number.

3. Select the main number and secondary number in the secondary setting menu, and exit when completed.

4. If you need to temporarily switch the mobile phone card of the dialing number, you can click the number used at the top of the dialing interface to switch.

Hello, I am happy to serve you and give you the following answers: 1. The reasons for the problem: 1

The main and secondary numbers of the Apple mobile phone are the same, which may be because the user did not set the number segment correctly when setting up, or because the user did not operate correctly when changing the number, resulting in the same main and secondary numbers. 2. Solution: 1

First of all, open the settings of your Apple phone, click "**", then click "Main Number", in the "Number" column, enter the new main number, and then click "Save"; 2.Then, click on "Nickname", in the "Number" column, enter the new Nickname number, and click "Save"; 3.Finally, click "Done", and after completing the settings, you can change the main and secondary numbers of the Apple phone.

Personal Tips:1When setting the main and secondary numbers of the Apple mobile phone, be sure to check carefully to ensure that the main and secondary numbers are different; 2.

If you find that the main and secondary numbers are the same, you can follow the above steps to reset the number to avoid problems.

The method of setting the main number and the secondary number of the Apple 13 mobile phone is as follows:Tools Ingredients: iPhone 13, iOS 15, Settings.

You can set the main or secondary number for your iPhone by clicking on the cellular network in the settings, selecting the card number, selecting the cellular mobile number tab, and setting the card number as the primary or secondary number.

1. In the settings interface, find the cellular network option and click to enter.

2. In the cellular interface, find the card number you need to set and click to enter.

3. Enter the number card setting interface and click the cellular number label to enter.

4. In the cellular mobile label interface, you can set the main number and secondary number.

If you have the same primary and secondary numbers of your iPhone, you can change them by following the following steps:1Open the Settings app and select the Cellular Circle Connection option.

2.Find and tap on your "Cellular Data Plan" to go to the "Services" page. 3.

Find the "Add Mobile Data Number" option and click "Add Mobile Data Number Cavity Backup Code". 4.Follow the prompts, enter the numbers you need to add, and complete the verification.

5.You can find "Main Number" under the "Cellular" option and change it to the mobile number you need to use. If your secondary number is the same SIM card as your primary number, you can also contact your carrier to change it.