ZA802607B - Telephone systems - Google Patents

Telephone systems

Info

Publication number
ZA802607B
ZA802607B ZA00802607A ZA802607A ZA802607B ZA 802607 B ZA802607 B ZA 802607B ZA 00802607 A ZA00802607 A ZA 00802607A ZA 802607 A ZA802607 A ZA 802607A ZA 802607 B ZA802607 B ZA 802607B
Authority
ZA
South Africa
Prior art keywords
telephone systems
telephone
systems
Prior art date
Application number
ZA00802607A
Other languages
English (en)
Inventor
R Stevenson
S Crooks
Original Assignee
Gen Electric Co 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 Gen Electric Co Ltd filed Critical Gen Electric Co Ltd
Publication of ZA802607B publication Critical patent/ZA802607B/xx

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)
ZA00802607A 1979-05-04 1980-04-30 Telephone systems ZA802607B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7915676 1979-05-04

Publications (1)

Publication Number Publication Date
ZA802607B true ZA802607B (en) 1981-04-29

Family

ID=10504975

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA00802607A ZA802607B (en) 1979-05-04 1980-04-30 Telephone systems

Country Status (10)

Country Link
US (1) US4327256A (xx)
EP (1) EP0018844B1 (xx)
JP (1) JPS55150694A (xx)
AU (1) AU531662B2 (xx)
BR (1) BR8002716A (xx)
CA (1) CA1154182A (xx)
DE (1) DE3066078D1 (xx)
IL (1) IL59950A (xx)
NZ (1) NZ193563A (xx)
ZA (1) ZA802607B (xx)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4382163A (en) * 1979-10-03 1983-05-03 Gte Automatic Electric Labs Inc. Microcomputer controlled key telephone line circuit
DE3000858C2 (de) * 1980-01-11 1986-11-13 Neumann Elektronik GmbH, 4330 Mülheim Tastengesteuerte Wechsel-, Gegen- oder Lautsprechanlage
US4572928A (en) * 1982-11-09 1986-02-25 Tamura Electric Works, Ltd. Key telephone system
US4578540A (en) * 1982-12-20 1986-03-25 At&T Bell Laboratories Telecommunications systems
US4677661A (en) * 1983-10-07 1987-06-30 Baccaret Teledex, Inc. Microprocessor controlled telephone unit
US4631367A (en) * 1984-08-29 1986-12-23 Lantel International Corp. Multi-line telephone system
JPH0728436B2 (ja) * 1988-04-28 1995-03-29 松下電器産業株式会社 構内電話交換機
JP3067670B2 (ja) * 1997-02-07 2000-07-17 日本電気株式会社 ボタン電話装置及びボタン電話制御プログラムを記憶した媒体
DE202020101775U1 (de) 2020-04-01 2020-05-26 Certoplast Technische Klebebänder Gmbh Klebeband, insbesondere Kabelwickelband zum Umwickeln von Kabeln in Automobilen

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3789152A (en) * 1972-12-11 1974-01-29 Bell Telephone Labor Inc Data format converter
CH580372A5 (de) * 1973-08-29 1976-09-30 Telefonbau & Normalzeit Gmbh Fernsprechvermittlungsanlage
GB1464615A (en) * 1974-05-30 1977-02-16 Plessey Co Ltd House-exchange telephone system
US3914559A (en) * 1974-11-07 1975-10-21 Bell Telephone Labor Inc Universal PBX line circuit for key and non-key service
US4088844A (en) * 1976-12-21 1978-05-09 Bell Telephone Laboratories, Incorporated Telephone station set interface circuit
US4088846A (en) * 1977-03-30 1978-05-09 Bell Telephone Laboratories, Incorporated Hold-plus-intercom for single-line stations
US4160131A (en) * 1977-10-07 1979-07-03 Nippon Electric Company, Ltd. Electronic key telephone system
US4125748A (en) * 1977-10-31 1978-11-14 Bell Telephone Laboratories, Incorporated Communication system call transfer arrangement
US4220827A (en) * 1979-02-21 1980-09-02 Bell Telephone Laboratories, Incorporated Telephone signaling circuit

Also Published As

Publication number Publication date
EP0018844B1 (en) 1984-01-11
NZ193563A (en) 1983-07-15
AU5789880A (en) 1980-11-06
JPS55150694A (en) 1980-11-22
CA1154182A (en) 1983-09-20
IL59950A (en) 1983-05-15
US4327256A (en) 1982-04-27
BR8002716A (pt) 1980-12-16
DE3066078D1 (en) 1984-02-16
JPH0338799B2 (xx) 1991-06-11
EP0018844A1 (en) 1980-11-12
IL59950A0 (en) 1980-06-30
AU531662B2 (en) 1983-09-01

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