JPS568954A - Information transfer system - Google Patents

Information transfer system

Info

Publication number
JPS568954A
JPS568954A JP8473679A JP8473679A JPS568954A JP S568954 A JPS568954 A JP S568954A JP 8473679 A JP8473679 A JP 8473679A JP 8473679 A JP8473679 A JP 8473679A JP S568954 A JPS568954 A JP S568954A
Authority
JP
Japan
Prior art keywords
trunk
receiving
dispatch
special information
telephone
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
JP8473679A
Other languages
Japanese (ja)
Other versions
JPS5917919B2 (en
Inventor
Terufumi Watanabe
Mitsuhiro Murata
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 JP8473679A priority Critical patent/JPS5917919B2/en
Publication of JPS568954A publication Critical patent/JPS568954A/en
Publication of JPS5917919B2 publication Critical patent/JPS5917919B2/en
Expired 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)

Abstract

PURPOSE:To transfer special information other than general telephone information economically between telephone-connected offices by making use of a random idle telephone trunk line without providing any dedicated transmission line. CONSTITUTION:Offices I and II provided with automatic exchanges are connected to each other through trunk lines L0-Ln. For a general telephone connection, relay R of the opposite office II, once trunk OGT0 is acquired from the exchange of office I, is put into operation to placd trunk ICT0 in the receiving state and dispatch controller DC1 is instructed to block trnnk line L0, thereby relaying a call with a signal relay. For the transfer of special information, sending a request from dispatching unit D1 to the command controller makes selecting circuit SEL select one of idle trunk lines by checking the block states of trunk lines to operate corresponding relay Gn. Then, the trunk of the opposite office is placed in the receiving state and channels LF0-LFn and LB0-LBn are connected to sending circuit SND1 and receiving circuit REC1 provided in common, thereby transferring the special information from dispatching unit D1 to dispatch receiving unit D2 through dispatch receiving controller DC2.
JP8473679A 1979-07-04 1979-07-04 Information transmission method Expired JPS5917919B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8473679A JPS5917919B2 (en) 1979-07-04 1979-07-04 Information transmission method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8473679A JPS5917919B2 (en) 1979-07-04 1979-07-04 Information transmission method

Publications (2)

Publication Number Publication Date
JPS568954A true JPS568954A (en) 1981-01-29
JPS5917919B2 JPS5917919B2 (en) 1984-04-24

Family

ID=13838973

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8473679A Expired JPS5917919B2 (en) 1979-07-04 1979-07-04 Information transmission method

Country Status (1)

Country Link
JP (1) JPS5917919B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5446732A (en) * 1992-10-14 1995-08-29 Fujitsu Limited Method of and apparatus for signalling between nodes in network

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5446732A (en) * 1992-10-14 1995-08-29 Fujitsu Limited Method of and apparatus for signalling between nodes in network

Also Published As

Publication number Publication date
JPS5917919B2 (en) 1984-04-24

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