FR1136028A - Identification device for automatic telephone systems - Google Patents

Identification device for automatic telephone systems

Info

Publication number
FR1136028A
FR1136028A FR1136028DA FR1136028A FR 1136028 A FR1136028 A FR 1136028A FR 1136028D A FR1136028D A FR 1136028DA FR 1136028 A FR1136028 A FR 1136028A
Authority
FR
France
Prior art keywords
identification device
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)
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Application granted granted Critical
Publication of FR1136028A publication Critical patent/FR1136028A/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)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Devices For Supply Of Signal Current (AREA)
FR1136028D 1954-09-17 1955-09-15 Identification device for automatic telephone systems Expired FR1136028A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE778025X 1954-09-17

Publications (1)

Publication Number Publication Date
FR1136028A true FR1136028A (en) 1957-05-07

Family

ID=20333515

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1136028D Expired FR1136028A (en) 1954-09-17 1955-09-15 Identification device for automatic telephone systems

Country Status (4)

Country Link
US (1) US2779823A (en)
DE (1) DE1002801B (en)
FR (1) FR1136028A (en)
GB (1) GB778025A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3087019A (en) * 1960-03-30 1963-04-23 Automatic Elect Lab Terminal per station identification circuit

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2543534A (en) * 1947-01-09 1951-02-27 Stromberg Carlson Co Automatic telephone system
NL78690C (en) * 1949-04-26

Also Published As

Publication number Publication date
DE1002801B (en) 1957-02-21
GB778025A (en) 1957-07-03
US2779823A (en) 1957-01-29

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