JPS6423663A - System for testing automatic subscriber line with priority - Google Patents

Abstract

PURPOSE:To shorten a time until a time required for autonomously detect a trouble from an exchange side after the trouble occurs by determining a subscriber line to execute an automatic subscriber line test with priority based on the presence of an answering signal returned from an ISDN terminal for an incoming request from an exchange. CONSTITUTION:A test starting means 3 is periodically started up, checks whether or not there is a subscriber line to be tested with priority by investigating the registration of the execution request of the automatic subscriber line test at a test receiving means 2, determines the subscriber line of a test subject and issues a test execution request. A test execution means 4 executes the automatic subscriber line test to the subscriber line of the test subject, based on the test execution request from the test starting means 3. A maintainer reporting means 5 reports a maintainer of the possibility of occurrence of a subscriber line trouble when a test result by the test execution means 4 is adverse and reports the maintainer of the possibility of occurrence of an ISDN terminal trouble when the test result is good and the subscriber line of the test subject is the subscriber line to be tested with priority. Thus, a trouble detecting time can be shortened and the unnecessary execution of the automatic subscriber line test can be suppressed.