JPS54132105A - Incoming call control system - Google Patents

Incoming call control system

Info

Publication number
JPS54132105A
JPS54132105A JP4001878A JP4001878A JPS54132105A JP S54132105 A JPS54132105 A JP S54132105A JP 4001878 A JP4001878 A JP 4001878A JP 4001878 A JP4001878 A JP 4001878A JP S54132105 A JPS54132105 A JP S54132105A
Authority
JP
Japan
Prior art keywords
circuit
code
called subscriber
contents
frequency signal
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
JP4001878A
Other languages
Japanese (ja)
Inventor
Haruyuki Yoshino
Shinji Goto
Wataru Naito
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 JP4001878A priority Critical patent/JPS54132105A/en
Publication of JPS54132105A publication Critical patent/JPS54132105A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/57—Arrangements for indicating or recording the number of the calling subscriber at the called subscriber's set

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)

Abstract

PURPOSE:To secure the selecting performance of the answer also at the incoming side by transmitting the ID code audible frequency signal to identify the calling subscriber to the called subscriber and then giving at the called subscriber side the sequential collation between the transmitted frequency signal and the contents of the ID code register file to decide the incoming effective or noneffective. CONSTITUTION:Tape recorder 13 is installed in parallel to the telephone circuit consisting of telephone 11 and hook button 12, and at the same time identification circuit 20 is connected to the telephone circuit via hybrid 14. Then ID code generator 21 containing ID button 22 is connected to one branch circuit of hybrid 14, and the reception output is supplied to one side of collation circuit 25 via register 24. And the contents of ID code register file 29 is supplied to the other side of circuit 25. In other words, the ID code audible frequency signal to identify the calling subscriber is transmitted to the called subscriber side, and the signal is collated to the contents of file 29 in sequence at the called subscriber side to decide the incoming effective or noneffective. In this way, the selecting performance can be given also at the terminating side for the answer.
JP4001878A 1978-04-05 1978-04-05 Incoming call control system Pending JPS54132105A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4001878A JPS54132105A (en) 1978-04-05 1978-04-05 Incoming call control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4001878A JPS54132105A (en) 1978-04-05 1978-04-05 Incoming call control system

Publications (1)

Publication Number Publication Date
JPS54132105A true JPS54132105A (en) 1979-10-13

Family

ID=12569157

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4001878A Pending JPS54132105A (en) 1978-04-05 1978-04-05 Incoming call control system

Country Status (1)

Country Link
JP (1) JPS54132105A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS574639A (en) * 1980-06-11 1982-01-11 Hitachi Ltd Display terminal device of calling subscriber name
JPS5866455A (en) * 1981-10-16 1983-04-20 Hitachi Ltd Selective incoming controlling system
JPS58146170A (en) * 1982-02-25 1983-08-31 Nippon Telegr & Teleph Corp <Ntt> Signal system of digital telephone set

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS574639A (en) * 1980-06-11 1982-01-11 Hitachi Ltd Display terminal device of calling subscriber name
JPS6332305B2 (en) * 1980-06-11 1988-06-29 Hitachi Ltd
JPS5866455A (en) * 1981-10-16 1983-04-20 Hitachi Ltd Selective incoming controlling system
JPS58146170A (en) * 1982-02-25 1983-08-31 Nippon Telegr & Teleph Corp <Ntt> Signal system of digital telephone set
JPH0133071B2 (en) * 1982-02-25 1989-07-11 Nippon Telegraph & Telephone

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