FR867232A - Central office telecommunications systems - Google Patents

Central office telecommunications systems

Info

Publication number
FR867232A
FR867232A FR867232DA FR867232A FR 867232 A FR867232 A FR 867232A FR 867232D A FR867232D A FR 867232DA FR 867232 A FR867232 A FR 867232A
Authority
FR
France
Prior art keywords
central office
telecommunications systems
office telecommunications
systems
central
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
Other languages
French (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.)
Thales SA
Original Assignee
Le Materiel Telephonique Thomson CSF
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 Le Materiel Telephonique Thomson CSF filed Critical Le Materiel Telephonique Thomson CSF
Application granted granted Critical
Publication of FR867232A publication Critical patent/FR867232A/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
    • H04M15/04—Recording calls, or communications in printed, perforated or other permanent form
    • 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
    • H04M15/08—Metering calls to called party, i.e. B-party charged for the communication

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Relay Circuits (AREA)
FR867232D 1939-06-30 1940-09-19 Central office telecommunications systems Expired FR867232A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB244473X 1939-06-30

Publications (1)

Publication Number Publication Date
FR867232A true FR867232A (en) 1941-10-07

Family

ID=10211845

Family Applications (1)

Application Number Title Priority Date Filing Date
FR867232D Expired FR867232A (en) 1939-06-30 1940-09-19 Central office telecommunications systems

Country Status (4)

Country Link
BE (1) BE440021A (en)
CH (1) CH244473A (en)
FR (1) FR867232A (en)
GB (1) GB531205A (en)

Also Published As

Publication number Publication date
CH244473A (en) 1946-09-15
GB531205A (en) 1940-12-31
BE440021A (en)

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