Method and apparatus for tapping control in an electronic switch

Details Method and apparatus for tapping control in an electronic switch Method and apparatus for tapping control in an electronic switch

1997-08-21

1999-07-27

Kuntz, Curtis A.

Telephonic communications

Diagnostic testing, malfunction indication, or electrical...

Monitoring

379 7, 379133, 379265, H04M 124

Patent

active

059303352

ABSTRACT:
A method for use in an electronic switching system having more than one operator position system connected thereto, is used for wiretapping in order to determine a time length of a telephone call between a caller and a receiver. The method comprises the steps of: (a) measuring an elapsed time from the instant the caller is connected to the receiver; (b) checking if the elapsed time reaches a preset time; (c) wiretapping when the elapsed time reaches the preset time; (d) resetting the elapsed time and going back to step (a) if the caller is determined to be still on the line by the wiretapping; and (e) releasing the connection between the caller and the receiver if the caller is determined not to be on the line any longer by the wiretapping.

REFERENCES:
patent: 4503290 (1985-03-01), Post et al.
patent: 4937862 (1990-06-01), Kosich
patent: 5438570 (1995-08-01), Karras et al.
patent: 5535256 (1996-07-01), Maloney et al.
patent: 5818909 (1998-10-01), VanBerkum
patent: 5844982 (1998-12-01), Knitl

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