How to open CRBT when Unicom sends a message?

If you want to enable Unicom's ringtone function, you can use your computer to access Wo Music's website, click "Login" in the upper right corner of the page, enter your mobile phone number (user name such as email address), password and verification code, click the user name in the upper right corner after successful login, and enter business management > ringtone management > ringtone library to enable ringtone service, or log in with ringtone password, click "Enable ringtone" at the bottom of the window and follow the page prompts.