USSD can be used to provide independent calling services such as a callback service (to reduce phone charges while roaming), enhance mobile marketing capabilities or interactive data services.
USSD可被用于提供独立的拨叫服务，如回拨（英语：Callback (telecommunications)）服务（减少漫游时的通话费用）、增强移动营销功能、交互式数据服务。