本标准针对采用基于北美使用的7号信令系统（SS7）协议的公共信道信令（CCS）的网络连接所需的测试。网络连接可能在北美国家内部，也可能在北美国家之间。本标准提供了用于测试用于呼叫控制和电路监控的SS7协议ISDN用户部分（ISUP）互连网络之间兼容性的测试脚本列表。

This standard addresses the testing required for internetwork connections employing Common Channel Signaling (CCS) based on Signaling System No. 7 (SS7) protocol used in North America. The internetwork connection may be either within or between North American countries. This standard provides a list of test scripts for testing compatibility between the interconnecting networks of the ISDN User Part (ISUP) of the SS7 protocol used for call control and circuit supervision.