Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – Testing of subscriber loop or terminal
Patent
1992-10-23
1995-10-31
Chin, Stephen
Telephonic communications
Diagnostic testing, malfunction indication, or electrical...
Testing of subscriber loop or terminal
H04M 124
Patent
active
054636701
ABSTRACT:
Communications services and circuits are tested by a system which includes a voice response unit (VRU) operating under the control of processes performed in a workstation. The system can automate the various tasks associated with making test calls, such as by initiating one or multiple simultaneous test calls to a customer's telephone number, and then by playing a stored voice message when any of the test calls is answered by customer personnel, or by establishing a voice path that can be used to talk to the customer personnel. The circuits being tested are then monitored by the VRU, which can both detect supervisory signals as well as perform call disposition analysis by detecting ring, ring
o answer, busy, fast busy, tones, or other audible conditions that are indicative of many circuit abnormalities. A display indicates test system status to a technician, including the progress of all test calls as well as information pertaining to the test system itself. The system can be used by several technicians at one time.
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patent: 5073919 (1991-12-01), Hagensick
R. Perdue et al. Conversant.RTM. 1 Voice System: Architecture and Applications, AT&T Technical Journal, vol. 65, Issue 5, pp. 34-47. Sep.-Oct., 1986.
K. H. Nilsen "Measuring Network Performance with Automatic Test Calls" IEEE International Conference on Communications, Boston, Mass., pp. 385-388.
G. K. Kelly, "A Microprocessor-Based Telex Traffic Route Tester", Conference on Microprocessor Systems, 1981, pp. 54-58.
M. Hammano, et al. "Development of Multiload Test Call Generation/Remote Patch Throwing Control for Telex Switchboard", KDD Technical Journal, No. 142, pp. 68-75. This reference may possibly be relevant based on the Abstract obtained in a computer literature search (copy attached) which is in English. A translation of the reference has not been obtained.
Chiang Marilyn C.
Fenley, Jr. R. Earl
Holland George F.
Javvaji Anand K.
Sreedhara Ramadevi
AT&T IPM Corp.
Chin Stephen
Kim Kevin
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