How to cancel the ringtone of mobile phone

I'm from the mobile business hall. It's easy to cancel CRBT! Method 1: directly dial 10086, follow the voice requirements, follow the manual service, and ask the operator to help you cancel. Method 2: Bring a mobile phone and apply for a valid certificate when opening an account in the business hall. Method 3: dial 100863 1 to set the password, and then go directly to the business hall to handle it. However, if you are a subscriber, you can't cancel even if you cancel. & gt& gt Please accept my suggestion, thank you!