对公共信道信令系统中的综合业务数字网用户部分（ISUP）和电话用户部分（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.

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对公共信道信令系统中的综合业务数字网用户部分（ISUP）和电话用户部分（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.

youdao