| 摘要 |
<p>PROBLEM TO BE SOLVED: To diagnose which terminal equipment for forming a call the fault generation part is in when a fault is generated in the call by reconnecting the respective input/output routes of the two terminal equipments and judging the presence/absence of the fault of the respective routes. SOLUTION: This method is constituted of a resource A6 and the resource B8 used by the terminal equipment A2 and the terminal equipment B4 for call setting, a time switch 10 for mutually connecting the respective resources A6 and B8 and a controller 12 for controlling the time switch 10. Then, by turning the output of the terminal equipment A2 or the terminal equipment B4 to its own input, the flow of the call from the terminal equipment A2 to the terminal equipment B4 or from the terminal equipment B4 to the terminal equipment A2 is changed and the call is circulated to the respective terminal equipments themselves. Thus, a fault part on the route is predicted. In such a manner, the respective input/output routes of the two respective terminal equipments A2 and B4 are reconnected and the presence/absence of the fault of the respective routes are judged.</p> |
