MY7800050A - A house exchange telephone system - Google Patents

A house exchange telephone system

Info

Publication number
MY7800050A
MY7800050A MY197850A MY7800050A MY7800050A MY 7800050 A MY7800050 A MY 7800050A MY 197850 A MY197850 A MY 197850A MY 7800050 A MY7800050 A MY 7800050A MY 7800050 A MY7800050 A MY 7800050A
Authority
MY
Malaysia
Prior art keywords
telephone system
exchange telephone
house exchange
house
telephone
Prior art date
Application number
MY197850A
Inventor
Ian Perkins Clive
William Dharrison David
Joseph Wood Frank
Original Assignee
The Plessey Comdpany 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 Comdpany Ltd filed Critical The Plessey Comdpany Ltd
Publication of MY7800050A publication Critical patent/MY7800050A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/002—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems
    • H04M9/005—Arrangements 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
    • H04M9/007—Arrangements 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
MY197850A 1974-05-30 1978-12-31 A house exchange telephone system MY7800050A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2536974A GB1464615A (en) 1974-05-30 1974-05-30 House-exchange telephone system

Publications (1)

Publication Number Publication Date
MY7800050A true MY7800050A (en) 1978-12-31

Family

ID=10226565

Family Applications (1)

Application Number Title Priority Date Filing Date
MY197850A MY7800050A (en) 1974-05-30 1978-12-31 A house exchange telephone system

Country Status (5)

Country Link
AU (1) AU499499B2 (en)
GB (1) GB1464615A (en)
HK (1) HK52577A (en)
MY (1) MY7800050A (en)
ZA (1) ZA752926B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL59950A (en) * 1979-05-04 1983-05-15 Gen Electric Co Ltd P.a.b.x.telephone systems with external extension adaptor
DE3037361C2 (en) * 1980-09-30 1983-11-10 Siemens AG, 1000 Berlin und 8000 München Circuit arrangement for centrally controlled telephone systems, in particular telephone extension systems and private special telephone systems, with user station and / or switching center-oriented operational readiness display means
DE4334906C2 (en) * 1993-10-13 1997-05-07 Neumann Elektronik Gmbh Device for the transmission of call and occupancy status signals from two-way or intercom systems with line selection via a two-wire transmission line
CN113794130A (en) * 2021-09-08 2021-12-14 广东电网有限责任公司 DC system expansion device

Also Published As

Publication number Publication date
HK52577A (en) 1977-10-20
AU499499B2 (en) 1979-04-26
GB1464615A (en) 1977-02-16
ZA752926B (en) 1976-04-28
AU8127175A (en) 1976-11-25

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