JPS5558690A - Exchange system - Google Patents

Exchange system

Info

Publication number
JPS5558690A
JPS5558690A JP13168178A JP13168178A JPS5558690A JP S5558690 A JPS5558690 A JP S5558690A JP 13168178 A JP13168178 A JP 13168178A JP 13168178 A JP13168178 A JP 13168178A JP S5558690 A JPS5558690 A JP S5558690A
Authority
JP
Japan
Prior art keywords
voice
subscriber
calling subscriber
trunk
telephone set
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
JP13168178A
Other languages
Japanese (ja)
Inventor
Haruyuki Yoshino
Kenzo Hasegawa
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 JP13168178A priority Critical patent/JPS5558690A/en
Publication of JPS5558690A publication Critical patent/JPS5558690A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker

Landscapes

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

Abstract

PURPOSE:To make a telephone set small-size, light and cheap by using numbers dependent upon voice as selection signals. CONSTITUTION:Audible frequency ringer 5 is started by the input to channel control unit 6 through subscriber's circuit 1 in response to call from calling subscriber A, and a request signal is sent to the calling subscriber A side through voice receiving trunk 3. The calling subscriber A side sends on of selection signals 0-9 dependent upon voice to the telephone set, and it is recognized as a selection number such as a BCD code through network 2 and trunk 3 by voice receiver 4, and after that, a detection pulse is inputted to generator 5 to request the next number, and simultaneously, the recognized selection number is inputted to control unit 6. Voice numbers are successively processed between the calling subscriber side and the exchange conversationally; and when the telephone number of the called subscriber B side is decoded, connection to the telephone set of the called subscriber B side is performed by ringer trunk 8.
JP13168178A 1978-10-27 1978-10-27 Exchange system Pending JPS5558690A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13168178A JPS5558690A (en) 1978-10-27 1978-10-27 Exchange system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13168178A JPS5558690A (en) 1978-10-27 1978-10-27 Exchange system

Publications (1)

Publication Number Publication Date
JPS5558690A true JPS5558690A (en) 1980-05-01

Family

ID=15063725

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13168178A Pending JPS5558690A (en) 1978-10-27 1978-10-27 Exchange system

Country Status (1)

Country Link
JP (1) JPS5558690A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5237910U (en) * 1975-09-09 1977-03-17

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5237910U (en) * 1975-09-09 1977-03-17

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