Circuit switched data network , csdn 電路交換數(shù)據(jù)網(wǎng)
Csd circuit switched data 電路交換數(shù)據(jù)
Which connects to the sms short message service centers and csd circuit switched data routers , providing a unified interface to them for the wapbox ,它連接到sms (短消息服務(wù))中心和csd (電路交換路數(shù))路由器,為wapbox向它們提供一個(gè)統(tǒng)一的接口。
While ss7 deals with non - circuit switched data ( messages are transported without a dedicated circuit established for that purpose ) , the function of the isdn - up ( isup ) is to control the circuit - switched voice or data connection services Ss7是處理非電路交換數(shù)據(jù)(傳輸消息時(shí),沒(méi)有建立用于該目的的專用電路)的,而isdn - up ( isup )則實(shí)現(xiàn)控制電路交換語(yǔ)音或數(shù)據(jù)連接業(yè)務(wù)的功能。
百科解釋
Circuit Switched Data (CSD) is the original form of data transmission developed for the time division multiple access (TDMA)-based mobile phone systems like Global System for Mobile Communications (GSM). CSD uses a single radio time slot to deliver 9.