The simple comparison is made between Integrated Server Digital Network User Part (ISUP) and Telephone User Part (TUP) in this paper.
公共信道信令系统中的综业务数字网部分(ISUP)和电部分(TUP)进行了简单的比较。
The simple comparison is made between Integrated Server Digital Network User Part (ISUP) and Telephone User Part (TUP) in this paper.
公共信道信令系统中的综业务数字网部分(ISUP)和电部分(TUP)进行了简单的比较。
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