How do I know whether the text message is sent to the travel number or the main number?

Hello, SMS does not distinguish card numbers. As long as it is used information, it will be sent to the mobile phone number.

Although we usually distinguish between the primary card and the secondary card, you can receive messages as long as your phone card is not deactivated and is in use.

If you are an Apple user with 1 1 or above, this problem can be solved in the following ways:

There is an arrow to the right of the name or number at the top of the middle. Click to point the arrow down, and you will see an information option. Click enter, and you will see a prompt: You are using "major number" or "minor number" for this conversation.

It's really not intuitive for Apple to set up this kind of dialogue between primary and secondary numbers here. I hope it can be set up when the system is updated next time, so you can see it without clicking.

Tips to extend the life of iPhone battery;

1. Develop a good habit of charging.

2. Turn on optimized charging.

3. The background application refresh is prohibited.

4. Enable low battery mode.

5. Turn off some app push.