What is the "Tianyi Package Optional Package Fee"? Only charge, don't know the purpose.

Taking Hangzhou Telecom's "Tianyi Package Optional Package Fee" as an example, it is explained that "Tianyi Package Optional Package Fee" includes: color ring tones, Tianyi videos, weather forecasts, communication assistants, morning and evening news, SMS packages, Tianyi SMS assistants and bell boxes. ***8 items, only pick 3 items you like! The contents of the package vary from place to place. I just give you an example to see what the "Tianyi Package Optional Package Fee" is for.