CA1032256A - Systeme de comptage pour central telephonique - Google Patents

Systeme de comptage pour central telephonique

Info

Publication number
CA1032256A
CA1032256A CA211,052A CA211052A CA1032256A CA 1032256 A CA1032256 A CA 1032256A CA 211052 A CA211052 A CA 211052A CA 1032256 A CA1032256 A CA 1032256A
Authority
CA
Canada
Prior art keywords
metering system
telephone exchange
exchange metering
telephone
metering
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.)
Expired
Application number
CA211,052A
Other languages
English (en)
Inventor
James E. Ahern
Winston D. Gayler
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.)
Northrop Grumman Space and Mission Systems Corp
Original Assignee
TRW Inc
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 TRW Inc filed Critical TRW Inc
Application granted granted Critical
Publication of CA1032256A publication Critical patent/CA1032256A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/04—Recording calls, or communications in printed, perforated or other permanent form

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
  • Meter Arrangements (AREA)
CA211,052A 1973-10-10 1974-10-09 Systeme de comptage pour central telephonique Expired CA1032256A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US404873A US3870823A (en) 1973-10-10 1973-10-10 Telephone exchange metering system

Publications (1)

Publication Number Publication Date
CA1032256A true CA1032256A (fr) 1978-05-30

Family

ID=23601389

Family Applications (1)

Application Number Title Priority Date Filing Date
CA211,052A Expired CA1032256A (fr) 1973-10-10 1974-10-09 Systeme de comptage pour central telephonique

Country Status (6)

Country Link
US (1) US3870823A (fr)
JP (1) JPS5084112A (fr)
CA (1) CA1032256A (fr)
DE (1) DE2448030A1 (fr)
FR (1) FR2247861B1 (fr)
GB (1) GB1486943A (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5068004A (fr) * 1973-10-16 1975-06-07
US4066843A (en) * 1975-03-28 1978-01-03 Applied Data Research, Inc. Telephone circuit monitoring system
US4022978A (en) * 1975-11-14 1977-05-10 Telesciences, Inc. Event monitoring transceiver
IT1128782B (it) * 1980-05-05 1986-06-04 Cselt Centro Studi Lab Telecom Dispositivo per l acquisizione di criteri telefonici da organi di centrali elettromeccaniche
US7822183B1 (en) * 2005-09-14 2010-10-26 Embarq Holdings Company Llc Converting a toll calling area to an extended area service

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1457308A (fr) * 1965-05-13 1966-01-24 Système de transmission et d'enregistrement de taxation téléphonique
NL139150B (nl) * 1969-05-06 1973-06-15 Nederlanden Staat Bipolaire overdrager.
US3697695A (en) * 1970-12-09 1972-10-10 Uwe A Pommerening Call metering for telephone exchange

Also Published As

Publication number Publication date
DE2448030A1 (de) 1975-04-30
JPS5084112A (fr) 1975-07-07
FR2247861A1 (fr) 1975-05-09
US3870823A (en) 1975-03-11
GB1486943A (en) 1977-09-28
FR2247861B1 (fr) 1978-05-05

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