SE7700719L - SET AND DEVICE AT AUTOMATIC HOUSE CALL CENTERS - Google Patents

SET AND DEVICE AT AUTOMATIC HOUSE CALL CENTERS

Info

Publication number
SE7700719L
SE7700719L SE7700719A SE7700719A SE7700719L SE 7700719 L SE7700719 L SE 7700719L SE 7700719 A SE7700719 A SE 7700719A SE 7700719 A SE7700719 A SE 7700719A SE 7700719 L SE7700719 L SE 7700719L
Authority
SE
Sweden
Prior art keywords
exchange
line
detected
jan
monitoring unit
Prior art date
Application number
SE7700719A
Other languages
Unknown language ( )
Swedish (sv)
Inventor
B Koch
W Knusli
Original Assignee
Sodeco Compteurs De Geneve
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 Compteurs De Geneve filed Critical Sodeco Compteurs De Geneve
Publication of SE7700719L publication Critical patent/SE7700719L/en
Priority to DE7729694U priority Critical patent/DE7729694U1/en

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

1531671 Automatic exchange systems SODECO-SAIA AG 19 Jan 1977 [26 Jan 1976] 02140/77 Heading H4K The use of telephone extensions of a PABX is detected by periodically feeding tone pulses into active exchange lines and detecting those tones at the extension lines. As shown line current in an exchange line 4 of a PABX7 is detected at 2. Immediately thereafter and after each exchange metering pulse as detected at 1, a monitoring unit 5 repeatedly transmits a train of tone pulses via a coupling unit 4 to the line. A filter 18 prevents the tones reaching the exchange. The trains are verified in a detector 14 individual to the extension line involved. The detector transmits the line identity to monitoring unit 5 where it is printed or logged for billing.
SE7700719A 1976-01-26 1977-03-31 SET AND DEVICE AT AUTOMATIC HOUSE CALL CENTERS SE7700719L (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE7729694U DE7729694U1 (en) 1977-03-31 1977-09-24 PORTABLE ARRANGEMENT FOR IRRIGATION

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
SE7700719L true SE7700719L (en) 1977-07-27

Family

ID=4197274

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7700719A SE7700719L (en) 1976-01-26 1977-03-31 SET AND DEVICE AT AUTOMATIC HOUSE CALL CENTERS

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
DE2607397A1 (en) 1977-12-08
CH592988A5 (en) 1977-11-15
FR2339302B1 (en) 1982-03-12
FR2339302A1 (en) 1977-08-19
AT357609B (en) 1980-07-25
NO770159L (en) 1977-07-27
GB1531671A (en) 1978-11-08
ES455321A1 (en) 1978-05-01
NO144185B (en) 1981-03-30
NO144185C (en) 1981-07-08
ATA10577A (en) 1979-12-15
DE2607397C3 (en) 1978-11-16

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