The opening of China Telecom's wing payment is free, and the use is also free. Wing Pay mobile phone client business does not charge users a separate function fee (except Inner Mongolia). The use of the Wing Pay mobile client to generate traffic charges provides account inquiry, transaction inquiry and other services, and users will incur traffic charges when using the mobile phone purchase, game fast charging and other services provided by the Wing Pay mobile phone client. It will be deducted from the user's corresponding data plan.