介绍笔者为测试交换机呼叫接续功能而开发的，供大型交换机生产线使用的一套专用测试系统的软硬件设计方法。

The designs both software and hardware for a special test system of the call-connection of the program-controlled exchange are introduced and the structures both software and hardware are showed here.

youdao

介绍笔者为测试交换机呼叫接续功能而开发的，供大型交换机生产线使用的一套专用测试系统的软硬件设计方法。

The designs both software and hardware for a special test system of the call-connection of the program-controlled exchange are introduced and the structures both software and hardware are showed here.

youdao