NO890731L - Digitalt tastetelefonsystem. - Google Patents

Digitalt tastetelefonsystem.

Info

Publication number
NO890731L
NO890731L NO89890731A NO890731A NO890731L NO 890731 L NO890731 L NO 890731L NO 89890731 A NO89890731 A NO 89890731A NO 890731 A NO890731 A NO 890731A NO 890731 L NO890731 L NO 890731L
Authority
NO
Norway
Prior art keywords
central processor
ports
channels
message
port associated
Prior art date
Application number
NO89890731A
Other languages
English (en)
Norwegian (no)
Other versions
NO890731D0 (no
Inventor
David Joseph Robertson
Ronald James Maginley
Alan Stanley John Chapman
Terence Neil Thomas
Nadir Nizamuddin
John William Joseph Williams
Alan Morris Redmond
Robert Samuel Morley
Original Assignee
Northern Telecom 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=22602888&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=NO890731(L) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from US07/166,345 external-priority patent/US4893310A/en
Application filed by Northern Telecom Ltd filed Critical Northern Telecom Ltd
Publication of NO890731D0 publication Critical patent/NO890731D0/no
Publication of NO890731L publication Critical patent/NO890731L/no

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
    • H04M9/008—Multiplex systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Telephonic Communication Services (AREA)
  • Input From Keyboards Or The Like (AREA)
  • Closed-Circuit Television Systems (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
  • Communication Control (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
  • Switches With Compound Operations (AREA)
NO89890731A 1988-03-10 1989-02-21 Digitalt tastetelefonsystem. NO890731L (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/166,345 US4893310A (en) 1987-11-30 1988-03-10 Digital key telephone system

Publications (2)

Publication Number Publication Date
NO890731D0 NO890731D0 (no) 1989-02-21
NO890731L true NO890731L (no) 1989-09-11

Family

ID=22602888

Family Applications (2)

Application Number Title Priority Date Filing Date
NO89890731A NO890731L (no) 1988-03-10 1989-02-21 Digitalt tastetelefonsystem.
NO89890730A NO890730L (no) 1988-03-10 1989-02-21 Digitalt tastetelefonsystem.

Family Applications After (1)

Application Number Title Priority Date Filing Date
NO89890730A NO890730L (no) 1988-03-10 1989-02-21 Digitalt tastetelefonsystem.

Country Status (12)

Country Link
EP (1) EP0331838B2 (zh)
JP (1) JPH0744716B2 (zh)
CN (1) CN1013466B (zh)
AT (1) ATE86813T1 (zh)
AU (2) AU611499B2 (zh)
CA (1) CA1311286C (zh)
DE (1) DE3879175T2 (zh)
DK (1) DK661988A (zh)
ES (1) ES2039647T5 (zh)
NO (2) NO890731L (zh)
NZ (1) NZ227092A (zh)
PT (1) PT89159A (zh)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4873682A (en) * 1987-11-30 1989-10-10 Northern Telecom Limited Digital key telephone system
CA2073066C (en) * 1990-04-12 1998-07-21 Albert George Offers Private telephone system with simplified command feature
US5455853A (en) 1992-08-25 1995-10-03 Bell Communications Research, Inc. Method of creating a telecommunication service template
US5511116A (en) 1992-08-25 1996-04-23 Bell Communications Research Inc. Method of creating and accessing value tables in a telecommunication service creation and execution environment
US5463682A (en) 1992-08-25 1995-10-31 Bell Communications Research, Inc. Method of creating user-defined call processing procedures
US5442690A (en) 1992-08-25 1995-08-15 Bell Communications Research, Inc. Telecommunication service record structure and method of execution
WO1994005112A1 (en) 1992-08-25 1994-03-03 Bell Communications Research, Inc. System and method for creating, transferring, and monitoring services in a telecommunication system
CN1036106C (zh) * 1993-09-29 1997-10-08 冶金工业部包头钢铁设计研究院 程控企业通信系统
US6343126B1 (en) 1996-03-27 2002-01-29 Hello Direct, Inc. Method and apparatus for interfacing analog telephone apparatus to a digital, analog or hybrid telephone switching system
US5912964A (en) * 1996-03-27 1999-06-15 Hello Direct, Inc. Adaptive telephone handset interface
US5892823A (en) * 1996-03-27 1999-04-06 Hello Direct, Inc. Smart interface technology

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2047048B (en) * 1979-04-20 1983-04-20 Gen Electric Co Ltd Telephone systems
US4292474A (en) * 1979-08-13 1981-09-29 Oki Electronics Of America, Inc. Electronic key telephone system with bi-directional serial data stream station control
US4363936A (en) * 1980-02-11 1982-12-14 Stromberg-Carlson Corporation Telephone network including common equipment with message information and control information circuits for connecting to stations having multifunction telephones
JPS58198986A (ja) * 1982-05-17 1983-11-19 Tamura Electric Works Ltd ボタン電話装置の信号伝送方式
JPH0646824B2 (ja) * 1983-09-20 1994-06-15 日本電気株式会社 ボタン電話装置
US4534023A (en) * 1983-10-07 1985-08-06 At&T Information Systems Inc. Plural communication channel protocol support systems
US4730304A (en) * 1985-10-02 1988-03-08 American Telephone And Telegraph Company, At&T Bell Laboratories Data base creation in stored program controlled switching systems

Also Published As

Publication number Publication date
ATE86813T1 (de) 1993-03-15
CN1013466B (zh) 1991-08-07
NO890731D0 (no) 1989-02-21
NO890730D0 (no) 1989-02-21
ES2039647T5 (es) 1996-10-16
EP0331838A2 (en) 1989-09-13
JPH01241294A (ja) 1989-09-26
DE3879175D1 (de) 1993-04-15
AU611499B2 (en) 1991-06-13
JPH0744716B2 (ja) 1995-05-15
AU2491588A (en) 1989-09-14
NO890730L (no) 1989-09-11
DK661988A (da) 1989-09-11
EP0331838B2 (en) 1996-06-12
AU619423B2 (en) 1992-01-23
DK661988D0 (da) 1988-11-25
DE3879175T2 (de) 1996-09-19
CA1311286C (en) 1992-12-08
EP0331838B1 (en) 1993-03-10
ES2039647T3 (es) 1993-10-01
PT89159A (pt) 1989-11-10
EP0331838A3 (en) 1990-05-30
CN1043055A (zh) 1990-06-13
AU6846290A (en) 1991-03-07
NZ227092A (en) 1990-11-27

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