Unicom's mobile phone number can be connected to the music portal through the computer. Click "Login" in the upper right corner of the page and enter the mobile phone number (email address, other user name), password and verification code. After logging in successfully, click the account at the portrait in the upper right corner to enter the user center > ringtone management > ringtone library, select one-button ringtone setting, and set ringtone songs according to the page prompts.