CA2145855A1 - Method and Apparatus for Limiting the Duration of a Telephone Call - Google Patents

Method and Apparatus for Limiting the Duration of a Telephone Call

Info

Publication number
CA2145855A1
CA2145855A1 CA 2145855 CA2145855A CA2145855A1 CA 2145855 A1 CA2145855 A1 CA 2145855A1 CA 2145855 CA2145855 CA 2145855 CA 2145855 A CA2145855 A CA 2145855A CA 2145855 A1 CA2145855 A1 CA 2145855A1
Authority
CA
Canada
Prior art keywords
telephone
duration
time
limiting
lines
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
CA 2145855
Other languages
French (fr)
Other versions
CA2145855C (en
Inventor
Harry B. Hahn
Lawrence A. Ball
James G. Ferro
Travis Marlatte
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.)
Rauland Borg Corp
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2145855A1 publication Critical patent/CA2145855A1/en
Application granted granted Critical
Publication of CA2145855C publication Critical patent/CA2145855C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/38—Graded-service arrangements, i.e. some subscribers prevented from establishing certain connections

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
  • Telephonic Communication Services (AREA)

Abstract

An apparatus and method is provided for limiting the connection time of selected telephone lines in a private branch exchange. A maximum connection time is programmed into the system for selected lines. Calls are automatically terminated if the duration of the call exceeds the maximum time. The selected line is prevented from re-dialing the called number for a certain period of time. If desired, the selected telephone line is automatically enabled and disabled by the system at predetermined times. The telephone system may also incorporate other conventional features for certain ones of the telephone lines in the PBX system, including limited prefix dialing capabilities, limited area code dialing capabilities, blocking of incoming calls, and the like.
CA 2145855 1993-07-30 1993-08-02 Method and apparatus for limiting the duration of a telephone call Expired - Fee Related CA2145855C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US9995893A 1993-07-30 1993-07-30
US099,958 1993-07-30

Publications (2)

Publication Number Publication Date
CA2145855A1 true CA2145855A1 (en) 1995-02-09
CA2145855C CA2145855C (en) 1998-12-08

Family

ID=22277421

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2145855 Expired - Fee Related CA2145855C (en) 1993-07-30 1993-08-02 Method and apparatus for limiting the duration of a telephone call

Country Status (2)

Country Link
CA (1) CA2145855C (en)
WO (1) WO1995004422A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19706779C2 (en) * 1997-02-20 2000-05-18 Siemens Ag Communication system with a special service for subscriber stations
JP5890448B2 (en) * 2014-02-17 2016-03-22 日本電信電話株式会社 PBX device call restriction method, PBX device, and PBX control program

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5662492A (en) * 1979-10-26 1981-05-28 Nec Corp Forced cut-off system for inter-office trunk line
US4346264A (en) * 1980-04-02 1982-08-24 Cindon Research Inc. Telephone call restriction apparatus
JPS5923666A (en) * 1982-07-29 1984-02-07 Matsushita Electric Ind Co Ltd Forcible disconnecting method of automatic exchange
US4511765A (en) * 1983-05-11 1985-04-16 Aurora Mechatronics Corporation Universal control device for restricting dialing and time limiting telephone calls
US4656657A (en) * 1985-10-15 1987-04-07 Richard Hunsicker Telephone monitoring device
JPS6471253A (en) * 1987-09-11 1989-03-16 Nec Corp Telephone set
US4924499A (en) * 1988-02-25 1990-05-08 Serby Victor M Timer control for telephone

Also Published As

Publication number Publication date
CA2145855C (en) 1998-12-08
WO1995004422A1 (en) 1995-02-09

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed