CA2167875A1 - Communications Privacy Protection System - Google Patents

Communications Privacy Protection System

Info

Publication number
CA2167875A1
CA2167875A1 CA2167875A CA2167875A CA2167875A1 CA 2167875 A1 CA2167875 A1 CA 2167875A1 CA 2167875 A CA2167875 A CA 2167875A CA 2167875 A CA2167875 A CA 2167875A CA 2167875 A1 CA2167875 A1 CA 2167875A1
Authority
CA
Canada
Prior art keywords
telephone number
randomly selected
telephone
subscriber
assigned
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA2167875A
Other languages
French (fr)
Other versions
CA2167875C (en
Inventor
Thomas Bennet London
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AT&T Corp
Original Assignee
AT&T Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by AT&T Corp filed Critical AT&T Corp
Publication of CA2167875A1 publication Critical patent/CA2167875A1/en
Application granted granted Critical
Publication of CA2167875C publication Critical patent/CA2167875C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/57Arrangements for indicating or recording the number of the calling subscriber at the called subscriber's set
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M3/00Automatic or semi-automatic exchanges
    • H04M3/42Systems providing special services or facilities to subscribers
    • H04M3/42008Systems for anonymous communication between parties, e.g. by use of disposal contact identifiers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/57Arrangements for indicating or recording the number of the calling subscriber at the called subscriber's set
    • H04M1/571Blocking transmission of caller identification to called party
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M2242/00Special services or facilities
    • H04M2242/22Automatic class or number identification arrangements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M3/00Automatic or semi-automatic exchanges
    • H04M3/42Systems providing special services or facilities to subscribers
    • H04M3/42025Calling or Called party identification service
    • H04M3/42034Calling party identification service
    • H04M3/42042Notifying the called party of information on the calling party
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M3/00Automatic or semi-automatic exchanges
    • H04M3/42Systems providing special services or facilities to subscribers
    • H04M3/42025Calling or Called party identification service
    • H04M3/42034Calling party identification service
    • H04M3/42059Making use of the calling party identifier
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M3/00Automatic or semi-automatic exchanges
    • H04M3/42Systems providing special services or facilities to subscribers
    • H04M3/42025Calling or Called party identification service
    • H04M3/42085Called party identification service
    • H04M3/42102Making use of the called party identifier
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M3/00Automatic or semi-automatic exchanges
    • H04M3/42Systems providing special services or facilities to subscribers
    • H04M3/48Arrangements for recalling a calling subscriber when the wanted subscriber ceases to be busy

Abstract

A telephone subscriber of a privacy communications service is allowed to use a randomly selected non-assigned telephone number -- instead of the subscriber's real telephone number --as a return phone number in a telephone message left for a called party. The non-assigned, randomly selected telephone number becomes inoperative after a threshold that may be pre-imposed by the subscriber is exceeded. According to a feature of the invention, the function ofrandomly selecting a non-assigned telephone number may also include replacing the calling party number with the randomly selected number. Hence, when a caller-id display unit receives the telephone number of an incoming call for which the privacy communications service is used, the randomly selected telephone number -- as opposed to the real telephone number -- is received and recorded by the caller-id display unit.
CA002167875A 1995-03-03 1996-01-23 Communications privacy protection system Expired - Fee Related CA2167875C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US398,251 1995-03-03
US08/398,251 US5590184A (en) 1995-03-03 1995-03-03 Communications privacy protection system by replacing calling party number with non-assigned number

Publications (2)

Publication Number Publication Date
CA2167875A1 true CA2167875A1 (en) 1996-09-04
CA2167875C CA2167875C (en) 1999-05-11

Family

ID=23574628

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002167875A Expired - Fee Related CA2167875C (en) 1995-03-03 1996-01-23 Communications privacy protection system

Country Status (2)

Country Link
US (1) US5590184A (en)
CA (1) CA2167875C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998012890A3 (en) * 1996-09-18 1998-06-25 Method and arrangement for rendering telecommunication operations and relations anonymous in telematic applications

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998012890A3 (en) * 1996-09-18 1998-06-25 Method and arrangement for rendering telecommunication operations and relations anonymous in telematic applications

Also Published As

Publication number Publication date
US5590184A (en) 1996-12-31
CA2167875C (en) 1999-05-11

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Legal Events

Date Code Title Description
EEER Examination request
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