A.Cmnet.mnc000.mcc460.gprs B.www.sinA.com.cn C.Wap.sinA.com.cn D.www.163.com
A.BTS B.BSC C.SGSN D.HLR
A.Wap over GPRS---Radius Server B.GSM語音---MSC C.CMNet---GSN D.Wap over GSM---MFS