Telecommunications systems

Telephonic communications – With usage measurement – Call traffic recording or monitoring

Reexamination Certificate

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Details

C379S032010, C379S015050

Reexamination Certificate

active

10332536

ABSTRACT:
A telecommunications network includes a management system for analyzing call detail records (CDR's) from terminating switches. The management system recovers CDR's by polling through switch managers which poll dependent exchanges. CDR's indicating a call clear occurring within a short predetermined time after a call answer are stored and used to indicate potentially faulty access network lines.

REFERENCES:
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patent: 4484030 (1984-11-01), Gavrilovich
patent: 5218632 (1993-06-01), Cool
patent: 5408524 (1995-04-01), Reum
patent: 5805686 (1998-09-01), Moller et al.
patent: 6385444 (2002-05-01), Peschel et al.
patent: 0541145 (1993-05-01), None
Canadian Office Action issued Jun. 9, 2005 in corresponding Canadian Application No. 2,417,710.
Response to Official Action filed Nov. 9, 2005 in corresponding Canadian Application No. 2,417,710.
Notice of Allowance issued Nov. 1, 2006 in corresponding Canadian Application No. 2,417,710.

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