JPS5680990A - Local connection system - Google Patents

Local connection system

Info

Publication number
JPS5680990A
JPS5680990A JP15756479A JP15756479A JPS5680990A JP S5680990 A JPS5680990 A JP S5680990A JP 15756479 A JP15756479 A JP 15756479A JP 15756479 A JP15756479 A JP 15756479A JP S5680990 A JPS5680990 A JP S5680990A
Authority
JP
Japan
Prior art keywords
subscriber
trunk
calling
intraoffice
called subscriber
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.)
Pending
Application number
JP15756479A
Other languages
Japanese (ja)
Inventor
Kozo Nakamura
Nobuaki Shuda
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP15756479A priority Critical patent/JPS5680990A/en
Publication of JPS5680990A publication Critical patent/JPS5680990A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0016—Arrangements providing connection between exchanges

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Exchange Systems With Centralized Control (AREA)

Abstract

PURPOSE:To reduce the number of terminals, required to equip an intraoffice trunk to half by connecting a called subscriber and calling subscriber together in a path interruption form. CONSTITUTION:Calling subscriber A puts the handset off the hook and central controller CC controls network NW to connect calling subscriber A to originating register trunk ORT. When calling subscriber A dials the number of called subscriber's B, controller CC recognizes intraoffice equipped telephone set B and, while calling B by connecting it to calling signal trunk RGT, connects calling subscriber A to channel terminals A3 and B3 of intraoffice trunk IOT2 to send ring-back tone RBT. As called subscriber B answers, the path between called subscriber B and trunk RGT is broken and called subscriber B is connected to channel terminals A3 and B3 by interrupting path 2 connecting calling subscriber A and intraoffice trunk IOT2 together.
JP15756479A 1979-12-05 1979-12-05 Local connection system Pending JPS5680990A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15756479A JPS5680990A (en) 1979-12-05 1979-12-05 Local connection system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15756479A JPS5680990A (en) 1979-12-05 1979-12-05 Local connection system

Publications (1)

Publication Number Publication Date
JPS5680990A true JPS5680990A (en) 1981-07-02

Family

ID=15652430

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15756479A Pending JPS5680990A (en) 1979-12-05 1979-12-05 Local connection system

Country Status (1)

Country Link
JP (1) JPS5680990A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6826274B1 (en) 1999-03-12 2004-11-30 Fujitsu Limited Exchange control method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6826274B1 (en) 1999-03-12 2004-11-30 Fujitsu Limited Exchange control method

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