FR933091A - Improvements to electrical signaling systems - Google Patents

Improvements to electrical signaling systems

Info

Publication number
FR933091A
FR933091A FR933091DA FR933091A FR 933091 A FR933091 A FR 933091A FR 933091D A FR933091D A FR 933091DA FR 933091 A FR933091 A FR 933091A
Authority
FR
France
Prior art keywords
signaling systems
electrical signaling
electrical
systems
signaling
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.)
Automatic Telephone and Electric Co Ltd
Original Assignee
Automatic Telephone and Electric Co Ltd
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 Automatic Telephone and Electric Co Ltd filed Critical Automatic Telephone and Electric Co Ltd
Application granted granted Critical
Publication of FR933091A publication Critical patent/FR933091A/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)
  • Monitoring And Testing Of Exchanges (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Interface Circuits In Exchanges (AREA)
FR933091D 1940-03-23 1946-08-29 Improvements to electrical signaling systems Expired FR933091A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5349/40A GB539823A (en) 1940-03-23 1940-03-23 Improvements in electrical signalling systems

Publications (1)

Publication Number Publication Date
FR933091A true FR933091A (en) 1948-04-09

Family

ID=9794429

Family Applications (1)

Application Number Title Priority Date Filing Date
FR933091D Expired FR933091A (en) 1940-03-23 1946-08-29 Improvements to electrical signaling systems

Country Status (6)

Country Link
US (1) US2292977A (en)
BE (1) BE468235A (en)
DE (1) DE826019C (en)
FR (1) FR933091A (en)
GB (1) GB539823A (en)
NL (1) NL63940C (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE464041A (en) * 1945-03-23
BE465859A (en) * 1945-06-13
BE468507A (en) * 1945-06-13
GB614177A (en) * 1946-05-25 1948-12-10 Automatic Telephone & Elect Improvements in or relating to electrical signalling systems
BE473455A (en) * 1946-07-25
US2600502A (en) * 1948-04-24 1952-06-17 Bell Telephone Labor Inc Calling line and private branch exchange line identifier
FR1040574A (en) * 1950-06-02 1953-10-16 Int Standard Electric Corp Electronic switching systems

Also Published As

Publication number Publication date
DE826019C (en) 1951-12-27
US2292977A (en) 1942-08-11
NL63940C (en)
GB539823A (en) 1941-09-25
BE468235A (en)

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