Mobile Authentication with ASP.Net

Question

pls help. Real life problem! how can i do programmatically a mobile wap form Authentication using asp.Net? Problem Discription: i am working with an operetor MObile Company based CDMA Technology. i'd like to make an authentication form who access the wap site. Notice i have a Data-base with a 400 Customer. so, is thier any mechanism to connect the DB. with an Asp.net Authentication Form "using wap ofcourse" any helpfull ideas w'd be greatly appreciated. Thnx