Douglas P Hahn

US Patent:

49378503, Jun 26, 1990

Filed:

Dec 22, 1988

Appl. No.:

7/289209

Inventors:

William F. Borbas - Woodridge IL
Robert D. Hahn - LaGrange IL
Douglas A. Hahn - Geneva IL

Assignee:

Illinois Bell Telephone Company - Chicago IL

International Classification:

H04J 116
H04M 332

US Classification:

379 6

Abstract:

The present invention provides a test set which checks the communication line from a central office to a telephone responder which has a predetermined telephone number and which generates an output signal consisting of a predetermined sequence of signals. The checking is performed from a central testing station from where an operator inputs a test signal which identifies the telephone number of the test set located in the central office from which the test is to be made. Once the connection is established, the telephone number of the responder to be called is transmitted. The test set includes a signal detector which identifies an input signal. The signal detector is interfaced to the responder transmission medium such that the signal detector receives responder output signal as an input signal. The test set further includes a memory which includes the correct signal which should be received from the responder with called telephone number, and a processor. The processor is interfaced to the memory and is coupled to receive the identification signal and the test signal.

US Patent:

53696808, Nov 29, 1994

Filed:

Mar 9, 1993

Appl. No.:

8/028259

Inventors:

William F. Borbas - Woodridge IL
Douglas A. Hahn - Willowbrook IL
Thomas W. Mines - Orland Park IL

Assignee:

Illinois Bell Telephone Company - Chicago IL

International Classification:

H04M 1500

US Classification:

379 1

Abstract:

An apparatus for verifying the central office billing translations from a remote location is disclosed. The system includes a processor with software which generates patterned telephone calls through a test set at the switch at a switching station to all working access codes. The billing information of these calls is then recorded. Once the recorded information is processed, the records which originated from the test set are identified by their assigned telephone number. These records are extracted and preferably recorded such that they can be automatically verified against an accurate routing and billing table for the specific site. The table is preferably stored in the test set.