How to hide the number when Unicom sends a message?

According to the query, the mobile communication network displays.

1. First, the mobile phone clicks on the calling interface, and at least three o'clock in the upper right corner, it enters the calling card setting interface.

2. Next, click More Settings. Slide down, you will see the displayed phone number, and select Unicom card.

3. Finally, select the hidden number. Unicom card can hide the number when sending messages.