ES455321A1 - Methods of detecting the use of telephone extensions in automatic private branch telephone exchanges and circuit arrangements for carrying out the methods - Google Patents

Methods of detecting the use of telephone extensions in automatic private branch telephone exchanges and circuit arrangements for carrying out the methods

Info

Publication number
ES455321A1
ES455321A1 ES455321A ES455321A ES455321A1 ES 455321 A1 ES455321 A1 ES 455321A1 ES 455321 A ES455321 A ES 455321A ES 455321 A ES455321 A ES 455321A ES 455321 A1 ES455321 A1 ES 455321A1
Authority
ES
Spain
Prior art keywords
telephone
methods
detecting
carrying
private branch
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
ES455321A
Other languages
Spanish (es)
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.)
Sodeco Saia AG
Societe des Compteurs de Geneve SODECO
Original Assignee
Sodeco Saia AG
Societe des Compteurs de Geneve SODECO
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 Sodeco Saia AG, Societe des Compteurs de Geneve SODECO filed Critical Sodeco Saia AG
Publication of ES455321A1 publication Critical patent/ES455321A1/en
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
    • H04M15/34—Charging, billing or metering arrangements for private branch exchanges

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
  • Meter Arrangements (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
  • Telephone Function (AREA)
  • Telephonic Communication Services (AREA)

Abstract

Procedure for detecting the use of telephone stations in automatic private telephone exchanges equipped with several telephone stations, characterized in that a recognition signal superimposed by modulation on a carrier wave is fed to the exchange line and, after passing through the domestic telephone exchange, it is received and then processed on a power line between the domestic telephone exchange and the telephone station that has established and/or received telephone communication with an external subscriber. (Machine-translation by Google Translate, not legally binding)
ES455321A 1976-01-26 1977-01-25 Methods of detecting the use of telephone extensions in automatic private branch telephone exchanges and circuit arrangements for carrying out the methods Expired ES455321A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH87876A CH592988A5 (en) 1976-01-26 1976-01-26

Publications (1)

Publication Number Publication Date
ES455321A1 true ES455321A1 (en) 1978-05-01

Family

ID=4197274

Family Applications (1)

Application Number Title Priority Date Filing Date
ES455321A Expired ES455321A1 (en) 1976-01-26 1977-01-25 Methods of detecting the use of telephone extensions in automatic private branch telephone exchanges and circuit arrangements for carrying out the methods

Country Status (8)

Country Link
AT (1) AT357609B (en)
CH (1) CH592988A5 (en)
DE (1) DE2607397C3 (en)
ES (1) ES455321A1 (en)
FR (1) FR2339302A1 (en)
GB (1) GB1531671A (en)
NO (1) NO144185C (en)
SE (1) SE7700719L (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2816034C3 (en) * 1978-04-13 1985-07-18 Siemens AG, 1000 Berlin und 8000 München Circuit arrangement for the system-independent recording of call data and charges
AT397447B (en) * 1986-11-06 1994-04-25 Schrack Elektronik Ag DIGITAL PABX WITH TRANSMISSION OF TELEPHONE FEES

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3151219A (en) * 1959-07-28 1964-09-29 Gen Dynamics Corp Tone detecting circuitry
FR2036440A5 (en) * 1969-03-14 1970-12-24 Landis & Gyr Ag
SE377022B (en) * 1970-06-10 1975-06-16 Commw Of Australia
FR2358067A1 (en) * 1976-07-08 1978-02-03 Ericsson Telefon Ab L M Monitoring signal routes in telephone networks - uses cyclic distribution of sinusoidal wave over network and synchronous sampling of exchange outputs

Also Published As

Publication number Publication date
DE2607397B2 (en) 1978-03-23
NO144185B (en) 1981-03-30
NO770159L (en) 1977-07-27
FR2339302A1 (en) 1977-08-19
DE2607397C3 (en) 1978-11-16
NO144185C (en) 1981-07-08
DE2607397A1 (en) 1977-12-08
ATA10577A (en) 1979-12-15
SE7700719L (en) 1977-07-27
CH592988A5 (en) 1977-11-15
GB1531671A (en) 1978-11-08
FR2339302B1 (en) 1982-03-12
AT357609B (en) 1980-07-25

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