How to resume 12 123 SMS reception?

The method of restoring 12 123 SMS reception is as follows:

Tools/materials: iPhone 1 1, iOS 16.5, traffic management 12 1232.9.6app.

1, open traffic control 12 123APP.

2. Click on the lower right corner to enter my page, and then click "Mobile Number".

3. On the expanded page, select and click "If the mobile phone number cannot receive SMS verification code".

4. Brush face verification and identity authentication.

5. After the authentication is completed, enter the change mobile phone number page, enter the mobile phone number being used, and click Next. After the mobile phone number is changed, you can receive the SMS verification code.