FR1435863A - Observation recording device for telephone exchange - Google Patents

Observation recording device for telephone exchange

Info

Publication number
FR1435863A
FR1435863A FR1396A FR1396A FR1435863A FR 1435863 A FR1435863 A FR 1435863A FR 1396 A FR1396 A FR 1396A FR 1396 A FR1396 A FR 1396A FR 1435863 A FR1435863 A FR 1435863A
Authority
FR
France
Prior art keywords
recording device
telephone exchange
observation recording
observation
telephone
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
FR1396A
Other languages
French (fr)
Inventor
Jean Charriot
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 filed Critical
Priority to FR1396A priority Critical patent/FR1435863A/en
Application granted granted Critical
Publication of FR1435863A publication Critical patent/FR1435863A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H04M3/36—Statistical metering, e.g. recording occasions when traffic exceeds capacity of trunks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H04M3/24—Arrangements for supervision, monitoring or testing with provision for checking the normal operation
    • H04M3/248—Arrangements for supervision, monitoring or testing with provision for checking the normal operation for metering arrangements or prepayment telephone systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
FR1396A 1965-01-09 1965-01-09 Observation recording device for telephone exchange Expired FR1435863A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1396A FR1435863A (en) 1965-01-09 1965-01-09 Observation recording device for telephone exchange

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1396A FR1435863A (en) 1965-01-09 1965-01-09 Observation recording device for telephone exchange

Publications (1)

Publication Number Publication Date
FR1435863A true FR1435863A (en) 1966-04-22

Family

ID=1578217

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1396A Expired FR1435863A (en) 1965-01-09 1965-01-09 Observation recording device for telephone exchange

Country Status (1)

Country Link
FR (1) FR1435863A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2538198A1 (en) * 1982-12-20 1984-06-22 Hezard Pierre Apparatus for monitoring the call-fee determination of a telephone exchange.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2538198A1 (en) * 1982-12-20 1984-06-22 Hezard Pierre Apparatus for monitoring the call-fee determination of a telephone exchange.

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