Comprehensive telephone call screening system
First Claim
1. A call screening system for blocking unwanted incoming calls to a telephonic instrument from a telephonic apparatus, which calls are received through a public switched telephone network and whereby call identification representations generated by a calling telephonic apparatus reveal the character of a call, the call screening system comprising:
- a receiver to interface an incoming call and associated call identification representations;
a signal recognition structure for receiving the call identification representations and to directly recognize select of said call identification representations that are generated by a facsimile capability of the calling telephonic apparatus by a comparison against stored reference data to selectively identify unwanted incoming facsimile calls to said telephone instrument; and
a call screening structure controlled by the signal recognition structure to block unwanted facsimile calls to the telephone instrument as selectively identified.
1 Assignment
0 Petitions
Accused Products
Abstract
A dynamic telephone-call screening system detects indications of the character for incoming calls as a basis to determine acceptance. Calls that are identified and indicated to be undesirable, as from a facsimile machine, may be categorically screened on the basis of character. Calls identified to be from an undesired terminal also are recognized and screened. Indications of undesired character calls and undesired calling terminal are stored for reference testing. Upon receiving an undesired call, its character and source may be stored for future reference.
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Citations
16 Claims
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1. A call screening system for blocking unwanted incoming calls to a telephonic instrument from a telephonic apparatus, which calls are received through a public switched telephone network and whereby call identification representations generated by a calling telephonic apparatus reveal the character of a call, the call screening system comprising:
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a receiver to interface an incoming call and associated call identification representations; a signal recognition structure for receiving the call identification representations and to directly recognize select of said call identification representations that are generated by a facsimile capability of the calling telephonic apparatus by a comparison against stored reference data to selectively identify unwanted incoming facsimile calls to said telephone instrument; and a call screening structure controlled by the signal recognition structure to block unwanted facsimile calls to the telephone instrument as selectively identified. - View Dependent Claims (2, 3, 4, 5)
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6. At least one processor readable storage device having processor readable code embodied on said processor readable storage device, the processor readable code for programming the at least one processor to perform a method of telephone call screening for a telephone instrument for unwanted calls received from a calling telephonic apparatus through a public switched network, which calling telephonic apparatus provides call identification signals including call character signals reveling the character of an incoming call, the method comprising the steps of:
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interfacing a called telephone line to receive said call identification signals generated directly by a calling telephonic apparatus provided through the public switched telephone network; identifying certain select of said received call identification signals including call character signals associated with a facsimile transmission call by a comparison against stored reference data and indicating unwanted facsimile telephone calls to provide a blocking signal; and terminating the interface of calls under control of the blocking signal. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14)
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15. A call screening process for blocking unwanted calls to a telephone instrument, which are received through a public switched telephone network from a calling telephonic apparatus and whereby call identification signals provided by the calling telephonic apparatus reveal the character of an incoming call and accompany incoming calls to the telephone instrument, the call screening system comprising the steps of:
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interfacing incoming calls to the telephone instrument to provide call identification signals including the call identification signals generated by the calling telephonic apparatus to indicate a facsimile transmission call; directly recognizing select of the call identification signals provided to the telephone instrument; identifying select of the recognized call identification signals to command a screening operation of a facsimile transmission call by a comparison against stored reference data; and blocking incoming facsimile calls under control of the screening operation. - View Dependent Claims (16)
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Specification