TALKING CONTROL, COMPLETION OF TELEPHONE CALLING, CREATION OF TALKING LIMIT AND CONTROL INDEX AS WELL AS TELEPHONE CALLING CONTROL IN ONE EXCHANGE

摘要

PURPOSE: To prevent excessive congestion by collecting individual talk operation data for each of plural talk kinds and also selectively controlling talk in order to limit talk on a route only to selected kinds. CONSTITUTION: When the ratio of call numbers which responds to call trials about a certain route exceeds a certain threshold, it automatically starts to perform decision processing of which is specific destination code whose value to answering ratio exceeds a prescribed threshold. An exchange collects measurement values only from destination codes that use a route having a problem state. The exchange also stores information with which a call completion rate can be decided not only about a direct route but also about an alternate route. Thereby, excessive congestion in communication network management can be prevented.