FR654067A - Improvements to automatic or semi-automatic telephone systems - Google Patents

Improvements to automatic or semi-automatic telephone systems

Info

Publication number
FR654067A
FR654067A FR654067DA FR654067A FR 654067 A FR654067 A FR 654067A FR 654067D A FR654067D A FR 654067DA FR 654067 A FR654067 A FR 654067A
Authority
FR
France
Prior art keywords
automatic
semi
telephone systems
automatic telephone
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.)
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 FR654067A publication Critical patent/FR654067A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/08—Indicating faults in circuits or apparatus
    • H04M3/14—Signalling existence of persistent "off-hook" condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/50—Centralised arrangements for answering calls; Centralised arrangements for recording messages for absent or busy subscribers ; Centralised arrangements for recording messages
    • H04M3/51—Centralised call answering arrangements requiring operator intervention, e.g. call or contact centers for telemarketing
    • H04M3/523—Centralised call answering arrangements requiring operator intervention, e.g. call or contact centers for telemarketing with call distribution or queueing

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Business, Economics & Management (AREA)
  • Marketing (AREA)
  • Exchange Systems With Centralized Control (AREA)
  • Small-Scale Networks (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
FR654067D 1927-05-10 1928-05-10 Improvements to automatic or semi-automatic telephone systems Expired FR654067A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB12572/27A GB295421A (en) 1927-05-10 1927-05-10 Improvements in telephone systems

Publications (1)

Publication Number Publication Date
FR654067A true FR654067A (en) 1929-04-02

Family

ID=10007115

Family Applications (1)

Application Number Title Priority Date Filing Date
FR654067D Expired FR654067A (en) 1927-05-10 1928-05-10 Improvements to automatic or semi-automatic telephone systems

Country Status (3)

Country Link
US (1) US1757446A (en)
FR (1) FR654067A (en)
GB (3) GB295421A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2620401A (en) * 1945-04-04 1952-12-02 Vigren Sten Daniel Automatic telephone system
US2628282A (en) * 1946-02-23 1953-02-10 Automatic Elect Lab Telephone system
FR933606A (en) * 1946-08-27 1948-04-27 Constr Telephoniques Improvements to automatic telephone systems
US2605362A (en) * 1948-07-07 1952-07-29 Stromberg Carlson Co Telephone party line intercept circuit
NL151655B (en) * 1949-02-14 Politechnika Warszawska METHOD OF FORMING A REINFORCED CONCRETE PIPE AND WITH APPLICATION OF THIS METHOD, ACQUIRED REINFORCED CONCRETE PIPE.
BE500637A (en) * 1950-01-16
US2740836A (en) * 1951-01-11 1956-04-03 Automatic Elect Lab Toll ticketing telephone systems
DE972071C (en) * 1952-03-01 1959-05-21 Standard Elek K Lorenz Ag Circuit arrangement for central markers in telecommunications systems

Also Published As

Publication number Publication date
GB295449A (en) 1928-08-10
US1757446A (en) 1930-05-06
GB295450A (en) 1928-08-10
GB295421A (en) 1928-08-10

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