How to make a mobile phone without a card an extension of another mobile phone?

I don't know if everyone is like Xiao Lei. Unconsciously, I have a mobile phone card, which is too much for a mobile phone. The reason is not complicated. Sometimes the new mobile phone package is very favorable, so I bought it at once. The original mobile phone number is too lazy to cancel because there are too many bound accounts.

Friends who use iPhone are even more bitter. Before 20 18, it was a single card machine, and sometimes I didn't know which mobile phone card to insert when I went out. However, after a long period of pain, Xiao Lei found a solution. He can use an application called "Worry-Free Travel" to receive short messages and phone calls from an offline SIM card, among other powerful functions.

Now, let's have a look!

It's easy to answer SMS calls for free!

5Worry-Free is an application launched by China Mobile, through which you can receive messages and calls from the original mobile phone number for free. The key is that this SIM card is not inserted in the mobile phone, so that you can change a single-card mobile phone into a dual-card mobile phone and change a dual-card mobile phone into a three-card mobile phone in disguise.

The setup process is simple.

Let's talk about the specific operation steps. The demo machine we used was Xiao Lei's own iPhone 8P, a single card machine.

The first step is to insert the mobile phone card that receives SMS and phone calls into the iPhone, and then download and install it. Open the worry-free App and use this mobile phone number to complete the registration and login.

Step 2: Click the phone/message answering settings at the bottom of the screen in the worry-free App to enable the functions we want. This entrance can also be reached by SMS in the "message".

Step 3: After entering the setting interface, first complete the equipment security verification, and the mobile phone card can be successfully verified by inserting it into the mobile phone and opening the data network. If you use a dual-card mobile phone, remember to turn on the data switch and set the mobile phone card. Then turn on the option of receiving incoming calls and text messages for free, and the system will prompt you to take the SIM card out of your phone or be in flight mode.

We must pay attention to this. If the original mobile SIM card is in domestic online mode, it will not be able to open the function of answering incoming calls and text messages for free.

This step is completed after successfully turning on the option of answering calls and text messages for free. We can insert other mobile phone cards into our mobile phones. Ray's single-card iPhone now has some functions of a dual-card phone.