What does it mean to log in to the pinball camera and show that the mobile phone number has been taken?

The mobile phone number has been logged in. When logging in to the marble camera, it shows that the mobile phone number has been occupied, indicating that the user's mobile phone number has been logged in. When the mobile phone number is occupied, the password can be retrieved through the mobile phone. If you forget your password, you will send a text message to verify it, and you can reset it after verification.