JPS52127108A - Controllig for private branch exchange of two combined sets - Google Patents

Controllig for private branch exchange of two combined sets

Info

Publication number
JPS52127108A
JPS52127108A JP4373176A JP4373176A JPS52127108A JP S52127108 A JPS52127108 A JP S52127108A JP 4373176 A JP4373176 A JP 4373176A JP 4373176 A JP4373176 A JP 4373176A JP S52127108 A JPS52127108 A JP S52127108A
Authority
JP
Japan
Prior art keywords
controllig
private branch
branch exchange
combined sets
sets
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
JP4373176A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5645478B2 (OSRAM
Inventor
Mineo Yoshizaki
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP4373176A priority Critical patent/JPS52127108A/ja
Priority to US05/788,537 priority patent/US4136264A/en
Priority to CA276,489A priority patent/CA1072660A/en
Publication of JPS52127108A publication Critical patent/JPS52127108A/ja
Publication of JPS5645478B2 publication Critical patent/JPS5645478B2/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
    • 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)
  • Exchange Systems With Centralized Control (AREA)
JP4373176A 1976-04-19 1976-04-19 Controllig for private branch exchange of two combined sets Granted JPS52127108A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP4373176A JPS52127108A (en) 1976-04-19 1976-04-19 Controllig for private branch exchange of two combined sets
US05/788,537 US4136264A (en) 1976-04-19 1977-04-18 Private automatic branch exchange having two exchange units
CA276,489A CA1072660A (en) 1976-04-19 1977-04-19 Private automatic branch exchange having two exchange units

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4373176A JPS52127108A (en) 1976-04-19 1976-04-19 Controllig for private branch exchange of two combined sets

Publications (2)

Publication Number Publication Date
JPS52127108A true JPS52127108A (en) 1977-10-25
JPS5645478B2 JPS5645478B2 (OSRAM) 1981-10-26

Family

ID=12671915

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4373176A Granted JPS52127108A (en) 1976-04-19 1976-04-19 Controllig for private branch exchange of two combined sets

Country Status (3)

Country Link
US (1) US4136264A (OSRAM)
JP (1) JPS52127108A (OSRAM)
CA (1) CA1072660A (OSRAM)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4768227A (en) * 1985-03-22 1988-08-30 Seiscor Technologies, Inc. Coil operated telephone
WO1992016068A1 (fr) * 1991-03-01 1992-09-17 Hitachi Telecom Technologies, Ltd. Systeme de central telephonique
JP3260419B2 (ja) * 1992-06-18 2002-02-25 株式会社東芝 通話料金管理装置
US5651061A (en) * 1993-09-01 1997-07-22 Hitachi Telecom Technologies, Ltd. Telephone exchange system

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE640537A (OSRAM) * 1962-11-28

Also Published As

Publication number Publication date
JPS5645478B2 (OSRAM) 1981-10-26
CA1072660A (en) 1980-02-26
US4136264A (en) 1979-01-23

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