FR2247861B1 - - Google Patents

Info

Publication number
FR2247861B1
FR2247861B1 FR7433969A FR7433969A FR2247861B1 FR 2247861 B1 FR2247861 B1 FR 2247861B1 FR 7433969 A FR7433969 A FR 7433969A FR 7433969 A FR7433969 A FR 7433969A FR 2247861 B1 FR2247861 B1 FR 2247861B1
Authority
FR
France
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
FR7433969A
Other versions
FR2247861A1 (fr
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.)
VIDAR CORP
Original Assignee
VIDAR 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 VIDAR CORP filed Critical VIDAR CORP
Publication of FR2247861A1 publication Critical patent/FR2247861A1/fr
Application granted granted Critical
Publication of FR2247861B1 publication Critical patent/FR2247861B1/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)
FR7433969A 1973-10-10 1974-10-09 Expired FR2247861B1 (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 (2)

Publication Number Publication Date
FR2247861A1 FR2247861A1 (fr) 1975-05-09
FR2247861B1 true FR2247861B1 (fr) 1978-05-05

Family

ID=23601389

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7433969A Expired FR2247861B1 (fr) 1973-10-10 1974-10-09

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
FR2247861A1 (fr) 1975-05-09
CA1032256A (fr) 1978-05-30
GB1486943A (en) 1977-09-28
DE2448030A1 (de) 1975-04-30
JPS5084112A (fr) 1975-07-07
US3870823A (en) 1975-03-11

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Legal Events

Date Code Title Description
ST Notification of lapse