Direct access test unit for central office

Details Direct access test unit for central office Direct access test unit for central office

H - Electricity

04

M

379/2

H04M 3/22 (2006.01)

Patent

CA 1265881

ABSTRACT OF THE DISCLOSURE A direct access test unit for testing subscriber lines is located in the central office and is accessable from a remote location through a standard ground start line circuit. The field technician involved in a troubleshooting problem dials the number of the ground start line circuit followed by a security code to gain access to the test unit which then returns dial tone. Dialing the number of a subscriber line to be tested provides for access to that line via the test unit and a test trunk connected thereto. Various tests may be performed on the subscriber line thus accessed by dialing a selected digit to identify the test. The test unit provides voice messages to the field technician to instruct in the use of the test unit and explain the available test operations and how they may be initiated.

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