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通过对NEAX61Σ交换机ISUP信令中的iam信号进行分析和局数据的修改，以及利用该交换机所具备的局数据信号屏蔽功能，解决了NEAX61Σ交换机与其它制式交换机之间ISUP信令配合的问题，提高了NEAX61Σ交换机的适应能力。
By analyzing the iam signal in the ISUP signaling of the NEAX61Σ switch and modifying the office data, and using the office data signal shielding function provided by the switch, the problem of ISUP signaling coordination between the NEAX61Σ switch and other standard switches is solved and the problem is solved Adaptability of the NEAX61Σ switch.