GB1417519A - Communication systems - Google Patents

Communication systems

Info

Publication number
GB1417519A
GB1417519A GB1238873A GB1238873A GB1417519A GB 1417519 A GB1417519 A GB 1417519A GB 1238873 A GB1238873 A GB 1238873A GB 1238873 A GB1238873 A GB 1238873A GB 1417519 A GB1417519 A GB 1417519A
Authority
GB
United Kingdom
Prior art keywords
line
lines
group
common
marking
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
GB1238873A
Other languages
English (en)
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
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 Inc filed Critical Western Electric Co Inc
Publication of GB1417519A publication Critical patent/GB1417519A/en
Expired legal-status Critical Current

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)
  • Exchange Systems With Centralized Control (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
GB1238873A 1972-03-20 1973-03-14 Communication systems Expired GB1417519A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
GB1417519A true GB1417519A (en) 1975-12-10

Family

ID=22889701

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1238873A Expired GB1417519A (en) 1972-03-20 1973-03-14 Communication systems

Country Status (11)

Country Link
US (1) US3745260A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPS5230205B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
BE (1) BE796976A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CA (1) CA967273A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CH (1) CH549324A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE2312904C3 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
ES (1) ES412764A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR2176892B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB1417519A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
IT (1) IT976281B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
SE (1) SE380702B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5215408B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1972-08-11 1977-04-28
JPS5123573A (en) * 1974-08-22 1976-02-25 Ichiro Yamanaka Goseijushishiitono seizoho
JPS5181868A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 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
DE4202816C1 (de) * 1992-01-31 1993-09-30 Siemens Ag Fernsprechnebenstellenanlage mit Sammelanschluß
DE4202815C1 (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 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1967-09-22 1968-03-22
FR2038078A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 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
JPS5230205B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1977-08-06
CH549324A (de) 1974-05-15
IT976281B (it) 1974-08-20
DE2312904B2 (de) 1977-06-08
DE2312904A1 (de) 1973-09-27
FR2176892A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1973-11-02
DE2312904C3 (de) 1981-01-29
SE380702B (sv) 1975-11-10
ES412764A1 (es) 1976-01-16
FR2176892B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1977-09-02
CA967273A (en) 1975-05-06
BE796976A (fr) 1973-07-16
US3745260A (en) 1973-07-10
JPS496817A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1974-01-22

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee