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DE69019087D1 - Gemischtes isdn vermittlungssystem. - Google Patents

Gemischtes isdn vermittlungssystem.

Info

Publication number
DE69019087D1
DE69019087D1 DE69019087T DE69019087T DE69019087D1 DE 69019087 D1 DE69019087 D1 DE 69019087D1 DE 69019087 T DE69019087 T DE 69019087T DE 69019087 T DE69019087 T DE 69019087T DE 69019087 D1 DE69019087 D1 DE 69019087D1
Authority
DE
Germany
Prior art keywords
mixed
switching system
isdn switching
isdn
switching
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 - Fee Related
Application number
DE69019087T
Other languages
English (en)
Other versions
DE69019087T2 (de
Inventor
Kenichi Funaki
Masaaki Douzono
Kouji Kawamata
Shinichi Kurumisawa
Shigeru Imaike
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.)
NTT Data Group Corp
Original Assignee
NTT Data Communications Systems Corp
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 NTT Data Communications Systems Corp filed Critical NTT Data Communications Systems Corp
Publication of DE69019087D1 publication Critical patent/DE69019087D1/de
Application granted granted Critical
Publication of DE69019087T2 publication Critical patent/DE69019087T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
    • H04Q11/0428—Integrated services digital network, i.e. systems for transmission of different types of digitised signals, e.g. speech, data, telecentral, television signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Maintenance And Management Of Digital Transmission (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Telephonic Communication Services (AREA)
  • Communication Control (AREA)
DE69019087T 1989-03-01 1990-02-28 Gemischtes isdn vermittlungssystem. Expired - Fee Related DE69019087T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1046559A JPH02228150A (ja) 1989-03-01 1989-03-01 Ｉｓｄｎ複合切替スイッチ
PCT/JP1990/000260 WO1990010346A1 (fr) 1989-03-01 1990-02-28 Systeme de commutation rnis composite

Publications (2)

Publication Number Publication Date
DE69019087D1 true DE69019087D1 (de) 1995-06-08
DE69019087T2 DE69019087T2 (de) 1996-01-04

Family

ID=12750684

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69019087T Expired - Fee Related DE69019087T2 (de) 1989-03-01 1990-02-28 Gemischtes isdn vermittlungssystem.

Country Status (5)

Country Link
EP (1) EP0413827B1 (de)
JP (1) JPH02228150A (de)
CA (1) CA2028141C (de)
DE (1) DE69019087T2 (de)
WO (1) WO1990010346A1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04282939A (ja) * 1991-03-12 1992-10-08 Fujitsu Ltd 回線障害時のバックアップ方式
JP2765284B2 (ja) * 1991-06-28 1998-06-11 日本電気株式会社 自動回線切替装置
DE10144522A1 (de) * 2001-09-10 2003-04-03 H C T Comm Technology Gmbh Umschalteinrichtung zum Umschalten zwischen Telekommunikationsanlagen
US8125998B2 (en) 2007-08-02 2012-02-28 Phybridge Inc. Backup system and method for network data communications
CN113794684B (zh) * 2021-08-10 2023-07-18 新华三信息安全技术有限公司 一种报文处理方法及装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01157634A (ja) * 1987-12-15 1989-06-20 Fujitsu Ltd データ通信装置における回線切替方式
JPH01238234A (ja) * 1988-03-18 1989-09-22 Hitachi Ltd 回線バックアップ方式
DE59306590D1 (de) * 1992-12-04 1997-07-03 Ocg Microelectronic Materials Positiv-Photoresist mit verbesserten Prozesseigenschaften

Also Published As

Publication number Publication date
EP0413827B1 (de) 1995-05-03
JPH02228150A (ja) 1990-09-11
EP0413827A4 (en) 1991-08-28
DE69019087T2 (de) 1996-01-04
WO1990010346A1 (fr) 1990-09-07
EP0413827A1 (de) 1991-02-27
CA2028141A1 (en) 1990-09-02
CA2028141C (en) 1999-04-06

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee