MAS service is a kind of informationization application service based on mobile terminals (including text messages, multimedia messages, WAP and mobile clients), provided by China Mobile for the various IT systems of corporate customers through deploying mobile agent server at corporate customer ends. The enterprises extend their business to the mobile terminals through Mobile Agent Server.

MASs targeted customers are government offices, enterprises and public institutions which have some information construction basis with high degree of informationization. They themselved own INTRANET and an independent database, complete application systems, and a finer internal division of work as well as departments or staff specially working for IT construction.

MAS makes the best of the omnipresent advantages of China Mobile network, and cuts into the solutions of enterprise informatization and industry application with mobile terminal as the carrier. Through many wireless connection modes like WAP, text messages, multimedia messages and voices, it can meet the informatization requirements of mobile officing, production control, marketing service and procurement logistics to help enterprises and industries save cost, improve efficiency and increase incomes.