FR943864A - Improvements to semi-automatic telephone systems - Google Patents

Improvements to semi-automatic telephone systems

Info

Publication number
FR943864A
FR943864A FR943864DA FR943864A FR 943864 A FR943864 A FR 943864A FR 943864D A FR943864D A FR 943864DA FR 943864 A FR943864 A FR 943864A
Authority
FR
France
Prior art keywords
semi
telephone systems
automatic telephone
automatic
systems
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)
Inventor
Fernand-Pierre Gohorel
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
CSF Compagnie Generale de Telegraphie sans Fil SA
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 CSF Compagnie Generale de Telegraphie sans Fil SA filed Critical CSF Compagnie Generale de Telegraphie sans Fil SA
Application granted granted Critical
Publication of FR943864A publication Critical patent/FR943864A/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
    • H04M15/08—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)
FR943864D 1947-03-06 1947-03-06 Improvements to semi-automatic telephone systems Expired FR943864A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR943864T 1947-03-06

Publications (1)

Publication Number Publication Date
FR943864A true FR943864A (en) 1949-03-21

Family

ID=9471466

Family Applications (1)

Application Number Title Priority Date Filing Date
FR943864D Expired FR943864A (en) 1947-03-06 1947-03-06 Improvements to semi-automatic telephone systems

Country Status (1)

Country Link
FR (1) FR943864A (en)

Similar Documents

Publication Publication Date Title
FR1003657A (en) Improvement in elastic systems
FR1004582A (en) Improvements to transmission systems
FR58511E (en) Improvements to electrical communication systems
FR944379A (en) Improvements to telecommunications systems
FR934661A (en) Improvements to electrical communication systems
FR953245A (en) Improvements to electroacoustic systems
FR950633A (en) Stylograph refinements
FR928167A (en) Improvements to telephone systems
FR943864A (en) Improvements to semi-automatic telephone systems
FR55348E (en) Improvements to semi-automatic telephone systems
FR933606A (en) Improvements to automatic telephone systems
FR1005731A (en) Improvements to two-sided speakerphone systems
FR933602A (en) Improvements to telephone systems
FR941540A (en) Improvements to telephone systems
FR928329A (en) Improvements to telephone systems
FR932546A (en) Improvements to telephone systems
FR938990A (en) Improvements to automatic telephone systems
FR924952A (en) Improvements to automatic telephone systems
FR948845A (en) Improvements to speakerphone systems
FR973006A (en) Improvements to communication systems
FR967338A (en) Improvements to telephone systems
FR978603A (en) Improvements to telephone systems
FR940683A (en) Telephone systems
FR930846A (en) Improvements to multiplex telephone systems
FR952852A (en) Improvements to telecommunication systems