SP is the English abbreviation of (Service Provider), which refers to the direct provider of mobile Internet service content and application services. It is responsible for developing and providing services suitable for mobile phone users according to user requirements. SP services on mobile phone terminals include plain text message (SMS), which is the simplest SP service with low entry threshold. It is also the most important service type with the largest user base and the largest market capacity. It also includes MMS (MMS Multimedia Messaging Service, which means multimedia SMS service in Chinese, which is China Mobile's MMS and China Unicom's MMS) where users can obtain various personalized multimedia contents. Compared with ordinary SMS, in addition to basic text information, it has more There are rich color pictures, sounds, animations, vibrations and other multimedia contents. In addition, games, ring tones, dating communities, advertisements, etc. are all profit methods of our company's value-added business, which can be roughly divided into two categories. One is direct Provide entertainment services, such as making friends, MMS, ring tones, games, ringtones, voice interaction, etc.; the other type provides information services, such as advertisements, introduction to specialized medical knowledge, weather forecasts, etc. From the perspective of enterprise business development, currently SP can be divided into three major categories: Portal SP is the SMS service provided by the portal website. The main ones include Sohu, Sina, NetEase, China.com, Tom, etc. The content of its SMS service mainly includes ringtones, pictures, text messages, news, games, etc. These services that require constant replenishment of materials are the expertise of these portal SPs; professional SPs are companies whose main business is SMS. Judging from the types of services provided, professional SPs and portal SPs almost completely overlap. But from the perspective of specific business, the advantage of professional SP lies in the technical and creative services that require continuous innovation; the representative of special SP is Tencent. Tencent is different from other SMS service providers in that it does not have common pictures, ringtones, games and other services. It only focuses on QQ-derived SMS services, which it has a monopoly advantage.