IT976281B - Sistema telefonico di commutazione - Google Patents

Sistema telefonico di commutazione

Info

Publication number
IT976281B
IT976281B IT71198/72A IT7119872A IT976281B IT 976281 B IT976281 B IT 976281B IT 71198/72 A IT71198/72 A IT 71198/72A IT 7119872 A IT7119872 A IT 7119872A IT 976281 B IT976281 B IT 976281B
Authority
IT
Italy
Prior art keywords
switching system
telephone switching
telephone
switching
Prior art date
Application number
IT71198/72A
Other languages
English (en)
Original Assignee
Western Electric Co
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 Western Electric Co filed Critical Western Electric Co
Application granted granted Critical
Publication of IT976281B publication Critical patent/IT976281B/it

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • 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
    • H04M3/46—Arrangements for calling a number of substations in a predetermined sequence until an answer is obtained

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Exchange Systems With Centralized Control (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
IT71198/72A 1972-03-20 1972-12-29 Sistema telefonico di commutazione IT976281B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US23648572A 1972-03-20 1972-03-20

Publications (1)

Publication Number Publication Date
IT976281B true IT976281B (it) 1974-08-20

Family

ID=22889701

Family Applications (1)

Application Number Title Priority Date Filing Date
IT71198/72A IT976281B (it) 1972-03-20 1972-12-29 Sistema telefonico di commutazione

Country Status (11)

Country Link
US (1) US3745260A (it)
JP (1) JPS5230205B2 (it)
BE (1) BE796976A (it)
CA (1) CA967273A (it)
CH (1) CH549324A (it)
DE (1) DE2312904C3 (it)
ES (1) ES412764A1 (it)
FR (1) FR2176892B1 (it)
GB (1) GB1417519A (it)
IT (1) IT976281B (it)
SE (1) SE380702B (it)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5215408B2 (it) * 1972-08-11 1977-04-28
JPS5123573A (en) * 1974-08-22 1976-02-25 Ichiro Yamanaka Goseijushishiitono seizoho
JPS5181868A (it) * 1975-01-14 1976-07-17 Ichiro Yamanaka
JPS5196866A (en) * 1975-02-21 1976-08-25 Ototsumoyoojusuru horienkabinirukeijushihatsuhoseihinno seizohoho
DE3443472A1 (de) * 1984-11-29 1986-06-05 Telefonbau Und Normalzeit Gmbh, 6000 Frankfurt Verfahren fuer eine fernmelde-, insbesondere fernsprechvermittlungsanlage
US4694487A (en) 1985-02-07 1987-09-15 American Telephone And Telegraph Company, At&T Bell Laboratories Controlling multi-fort hunt groups in a distributed control switching system
DE4202815C1 (de) * 1992-01-31 1993-09-30 Siemens Ag Fernsprechnebenstellenanlage mit Sammelanschluß
DE4202816C1 (de) * 1992-01-31 1993-09-30 Siemens Ag Fernsprechnebenstellenanlage mit Sammelanschluß

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3278692A (en) * 1963-08-06 1966-10-11 Bell Telephone Labor Inc Busy line call transfer system
DE1278536B (de) * 1965-07-22 1968-09-26 Siemens Ag Schaltungsanordnung fuer zentralgesteuerte Fernmeldevermittlungs-, insbesondere Fernsprechselbstwaehlanlagen mit Koppelfeldtechnik zur Bildung von Sammelanschluessen
GB1142138A (en) * 1966-03-28 1969-02-05 Gen Electric Co Ltd Improvements in or relating to automatic switching arrangement
BE704177A (it) * 1967-09-22 1968-03-22
FR2038078A1 (it) * 1969-03-28 1971-01-08 Constr Telephoniques
US3670109A (en) * 1969-07-03 1972-06-13 Bell Canada Telephone translating apparatus

Also Published As

Publication number Publication date
GB1417519A (en) 1975-12-10
CH549324A (de) 1974-05-15
CA967273A (en) 1975-05-06
JPS5230205B2 (it) 1977-08-06
BE796976A (fr) 1973-07-16
FR2176892A1 (it) 1973-11-02
DE2312904A1 (de) 1973-09-27
SE380702B (sv) 1975-11-10
ES412764A1 (es) 1976-01-16
DE2312904B2 (de) 1977-06-08
JPS496817A (it) 1974-01-22
FR2176892B1 (it) 1977-09-02
US3745260A (en) 1973-07-10
DE2312904C3 (de) 1981-01-29

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