JPS56132050A - Absence transfer system - Google Patents

Absence transfer system

Info

Publication number
JPS56132050A
JPS56132050A JP3391680A JP3391680A JPS56132050A JP S56132050 A JPS56132050 A JP S56132050A JP 3391680 A JP3391680 A JP 3391680A JP 3391680 A JP3391680 A JP 3391680A JP S56132050 A JPS56132050 A JP S56132050A
Authority
JP
Japan
Prior art keywords
circuit
call signal
telephone set
response
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
JP3391680A
Other languages
Japanese (ja)
Inventor
Masashi Fukui
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 Denshi KK
Original Assignee
Hitachi Denshi KK
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 Denshi KK filed Critical Hitachi Denshi KK
Priority to JP3391680A priority Critical patent/JPS56132050A/en
Publication of JPS56132050A publication Critical patent/JPS56132050A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/54—Arrangements for diverting calls for one subscriber to another predetermined subscriber

Landscapes

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

Abstract

PURPOSE:To eliminate a trouble due to forgetting of the operation of the absence transfer means, by monitoring the time till response by the time circuit simultaneously with starting of transmission of the call signal to the master telephone set and by transferring the call signal to another telephone set after a predetermined time. CONSTITUTION:When the call signal is detected by signal detecting circuit 1, call signal transmitting circuit 2 and timer circuit 9 are started, and the bell of master telephone set 7 is sounded by the call signal of circuit 2. Under this state, when the handset of telephone set 7 is hooked off, response detecting circuit 4 detects the response to stop the operation of circuit 2 and timer circuit 9. If the response of telephone set 7 is not detected, timer circuit 9 starts transfer control circuit 5 after a predetermined time and connects it to slave telephone sets 8-1-8-n set preliminarily. By this connection, circuit 2 continues to transmit the call signal until slave telephone sets 8-1-8-n respond or the calling side transmits the clearing signal, and thus, troubles due to forgetting of the operation of the absence transfer means are resolved.
JP3391680A 1980-03-19 1980-03-19 Absence transfer system Pending JPS56132050A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3391680A JPS56132050A (en) 1980-03-19 1980-03-19 Absence transfer system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3391680A JPS56132050A (en) 1980-03-19 1980-03-19 Absence transfer system

Publications (1)

Publication Number Publication Date
JPS56132050A true JPS56132050A (en) 1981-10-16

Family

ID=12399837

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3391680A Pending JPS56132050A (en) 1980-03-19 1980-03-19 Absence transfer system

Country Status (1)

Country Link
JP (1) JPS56132050A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62196962A (en) * 1986-02-25 1987-08-31 Kandenkou:Kk Voice calling telephone system
JPH07321924A (en) * 1982-03-30 1995-12-08 At & T Corp Implicit main telephone set addressing method in call lover device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54134911A (en) * 1978-04-12 1979-10-19 Hitachi Ltd Calling system for opposite straight circuit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54134911A (en) * 1978-04-12 1979-10-19 Hitachi Ltd Calling system for opposite straight circuit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07321924A (en) * 1982-03-30 1995-12-08 At & T Corp Implicit main telephone set addressing method in call lover device
JP2723482B2 (en) * 1982-03-30 1998-03-09 エイ・ティ・アンド・ティ・コーポレーション Sequential transfer call cover service method
JPS62196962A (en) * 1986-02-25 1987-08-31 Kandenkou:Kk Voice calling telephone system

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