MY7800011A - A house exchange telephone system - Google Patents

A house exchange telephone system

Info

Publication number
MY7800011A
MY7800011A MY197811A MY7800011A MY7800011A MY 7800011 A MY7800011 A MY 7800011A MY 197811 A MY197811 A MY 197811A MY 7800011 A MY7800011 A MY 7800011A MY 7800011 A MY7800011 A MY 7800011A
Authority
MY
Malaysia
Prior art keywords
telephone system
exchange telephone
house exchange
house
telephone
Prior art date
Application number
MY197811A
Other languages
English (en)
Inventor
William Harrison David
John Greer Rodney
Christopher Hammond Davis John
Edward Hollis John
Ian Perkins Clive
Original Assignee
The Plessey Company 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 The Plessey Company Ltd filed Critical The Plessey Company Ltd
Publication of MY7800011A publication Critical patent/MY7800011A/xx

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M9/00Arrangements for interconnection not involving centralised switching
    • H04M9/002Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems
    • H04M9/005Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems with subscriber controlled access to an exchange line
    • H04M9/007Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems with subscriber controlled access to an exchange line wherein the key telephone sets are star-connected to a central unit by a limited number of lines
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q3/00Selecting arrangements
    • H04Q3/58Arrangements providing connection between main exchange and sub-exchange or satellite
    • H04Q3/62Arrangements providing connection between main exchange and sub-exchange or satellite for connecting to private branch exchanges
    • H04Q3/625Arrangements in the private branch exchange

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
MY197811A 1973-04-04 1978-12-31 A house exchange telephone system MY7800011A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1601673A GB1437031A (en) 1973-04-04 1973-04-04 House exchange telephone system

Publications (1)

Publication Number Publication Date
MY7800011A true MY7800011A (en) 1978-12-31

Family

ID=10069655

Family Applications (1)

Application Number Title Priority Date Filing Date
MY197811A MY7800011A (en) 1973-04-04 1978-12-31 A house exchange telephone system

Country Status (8)

Country Link
DE (1) DE2416122A1 (enrdf_load_html_response)
FR (1) FR2224958B1 (enrdf_load_html_response)
GB (1) GB1437031A (enrdf_load_html_response)
HK (1) HK49177A (enrdf_load_html_response)
IT (1) IT1010893B (enrdf_load_html_response)
KE (1) KE2768A (enrdf_load_html_response)
MY (1) MY7800011A (enrdf_load_html_response)
ZA (1) ZA741829B (enrdf_load_html_response)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1595301A (en) * 1976-12-10 1981-08-12 Plessey Canada Electronic telephone system
DE3112847C2 (de) * 1981-03-31 1983-02-03 Siemens AG, 1000 Berlin und 8000 München Verfahren zur wechselseitigen Übertragung von binären Datensignalen über eine beidseitig mit einem Übertrager abgeschlossene Signalleitung
FR2518858A1 (fr) * 1981-12-23 1983-06-24 Jeumont Schneider Dispositif de transmission de signaux sur une ligne assurant egalement une alimentation en tension continue
SE435123B (sv) * 1983-01-19 1984-09-03 Ellemtel Utvecklings Ab Telekommunikationsterminal
US4575584A (en) * 1984-07-05 1986-03-11 Honeywell Inc. Fail-safe digital phone
US4739205A (en) * 1986-02-24 1988-04-19 Rockwell International Corporation Telephone signal multiplexing system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3519757A (en) * 1968-02-27 1970-07-07 Bell Telephone Labor Inc Electronic key telephone system
US3549820A (en) * 1968-05-02 1970-12-22 Bell Telephone Labor Inc Key telephone station concentrator
US3604857A (en) * 1969-07-25 1971-09-14 Bell Telephone Labor Inc Line-oriented key telephone system

Also Published As

Publication number Publication date
AU6734274A (en) 1975-10-02
KE2768A (en) 1977-10-21
IT1010893B (it) 1977-01-20
DE2416122A1 (de) 1974-10-24
ZA741829B (en) 1975-03-26
HK49177A (en) 1977-09-30
FR2224958A1 (enrdf_load_html_response) 1974-10-31
DE2416122C2 (enrdf_load_html_response) 1987-08-13
FR2224958B1 (enrdf_load_html_response) 1981-04-30
GB1437031A (en) 1976-05-26

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