JPS57131191A - Telephone device - Google Patents

Telephone device

Info

Publication number
JPS57131191A
JPS57131191A JP1576181A JP1576181A JPS57131191A JP S57131191 A JPS57131191 A JP S57131191A JP 1576181 A JP1576181 A JP 1576181A JP 1576181 A JP1576181 A JP 1576181A JP S57131191 A JPS57131191 A JP S57131191A
Authority
JP
Japan
Prior art keywords
line
private branch
branch exchange
relay
contacts
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.)
Granted
Application number
JP1576181A
Other languages
English (en)
Japanese (ja)
Other versions
JPH021438B2 (enrdf_load_stackoverflow
Inventor
Koichi Sekiguchi
Seiya Uchida
Masataka Kawamura
Kazuyuki Yamamoto
Teruyuki Kubo
Kenichi Ishii
Setsuo Oshima
Hiroshi Matsuda
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.)
NEC Platforms Ltd
Iwatsu Electric Co Ltd
Nippon Telegraph and Telephone Corp
Iwasaki Tsushinki KK
Original Assignee
Iwatsu Electric Co Ltd
Nippon Telegraph and Telephone Corp
Iwasaki Tsushinki KK
Nitsuko 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 Iwatsu Electric Co Ltd, Nippon Telegraph and Telephone Corp, Iwasaki Tsushinki KK, Nitsuko Corp filed Critical Iwatsu Electric Co Ltd
Priority to JP1576181A priority Critical patent/JPS57131191A/ja
Publication of JPS57131191A publication Critical patent/JPS57131191A/ja
Publication of JPH021438B2 publication Critical patent/JPH021438B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/58—Arrangements providing connection between main exchange and sub-exchange or satellite
    • H04Q3/62—Arrangements providing connection between main exchange and sub-exchange or satellite for connecting to private branch exchanges
    • H04Q3/625—Arrangements in the private branch exchange

Landscapes

  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
JP1576181A 1981-02-06 1981-02-06 Telephone device Granted JPS57131191A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1576181A JPS57131191A (en) 1981-02-06 1981-02-06 Telephone device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1576181A JPS57131191A (en) 1981-02-06 1981-02-06 Telephone device

Publications (2)

Publication Number Publication Date
JPS57131191A true JPS57131191A (en) 1982-08-13
JPH021438B2 JPH021438B2 (enrdf_load_stackoverflow) 1990-01-11

Family

ID=11897763

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1576181A Granted JPS57131191A (en) 1981-02-06 1981-02-06 Telephone device

Country Status (1)

Country Link
JP (1) JPS57131191A (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH041438A (ja) * 1990-04-17 1992-01-06 Hitachi Ltd 内燃機関制御装置

Also Published As

Publication number Publication date
JPH021438B2 (enrdf_load_stackoverflow) 1990-01-11

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