Switched network call progress protocol analyzer

Details Switched network call progress protocol analyzer Switched network call progress protocol analyzer

1996-08-12

1998-07-28

Bost, Dwayne D.

Telephonic communications

Supervisory or control line signaling

Signal reception at substation

379377, 379386, 379376, 379373, H04M 100

Patent

active

057871647

ABSTRACT:
A device capable of analyzing call progress event information from sensors connected to switched network circuits for the purpose of identifying the beginning and end of a telephone call. The invention also collects and analyzes all events occurring between the origination and termination of the call, providing a detailed description of both telephone user and network element actions. Abnormal events are identified during this analysis so that call quality can be determined. The invention can use information supplied by sensors that are intrusive or non intrusive to the switched network circuit.

REFERENCES:
patent: 4935958 (1990-06-01), Morganstein et al.
patent: 5023906 (1991-06-01), Novas
patent: 5448624 (1995-09-01), Hardy et al.
patent: 5483593 (1996-01-01), Gupta et al.
patent: 5590182 (1996-12-01), Stevens et al.

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