| 摘要 |
PURPOSE: A call cutoff control method of a full-electronic switching system is provided to cut off one speech path of trunk line forcedly and enable outgoing/incoming service subscribers to have an urgent communication with each other. CONSTITUTION: When all speech paths(50,...) of trunk line formed by using an operator position system(30, OPS) between a plurality of outgoing service subscribers(10,...) and incoming service subscribers(40,...) in other countries are busy, if a specific outgoing service subscriber(1) requires an urgent communication to the OPS(30), one of the speech paths which has been used for the longest time among a plurality of outgoing/incoming service subscribers(10..., 40...) is cut off forcedly. Thereby, specific outgoing/incoming service subscribers(1, 4) are able to have an urgent communication with each other.
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