JPS6468170A - Automatic signal change circuit - Google Patents

Automatic signal change circuit

Info

Publication number
JPS6468170A
JPS6468170A JP22606187A JP22606187A JPS6468170A JP S6468170 A JPS6468170 A JP S6468170A JP 22606187 A JP22606187 A JP 22606187A JP 22606187 A JP22606187 A JP 22606187A JP S6468170 A JPS6468170 A JP S6468170A
Authority
JP
Japan
Prior art keywords
dial
mode
signal
reply
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
JP22606187A
Other languages
Japanese (ja)
Inventor
Kazumi Akiyoshi
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 JP22606187A priority Critical patent/JPS6468170A/en
Publication of JPS6468170A publication Critical patent/JPS6468170A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To facilitate handling, by providing a reply state detecting means between a telephone set circuit and a subscriber line and adding a circuit detecting automatically the reply state of a called party and converting the signal from the dial pulse made into a DTMF signal mode, thereby eliminating the need for the signal conversion by the subscriber. CONSTITUTION:The dial mode is converted into the dial pulse mode by the control of a CPU memory 7 through the detection of a telephone call and a transmission dial by a ten-key of the subscriber is sent by a dial pulse signal. After dialing, the reply of the called party by the polarity inversion of a subscriber line by the reply state detection circuit 2 is monitored. In detecting the reply of the called party, the CPU memory 7 receives a signal and the automatic dial sending circuit 3 changes the dial pulse mode into the DTMF signal mode by the control of the CPU. Then the service signal originated by the subscriber by using a ten-key is applied by the DTMF signal. When the called party reply state is finished and the line is interrupted, the dial mode is converted again into the dial pulse mode.
JP22606187A 1987-09-09 1987-09-09 Automatic signal change circuit Pending JPS6468170A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22606187A JPS6468170A (en) 1987-09-09 1987-09-09 Automatic signal change circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22606187A JPS6468170A (en) 1987-09-09 1987-09-09 Automatic signal change circuit

Publications (1)

Publication Number Publication Date
JPS6468170A true JPS6468170A (en) 1989-03-14

Family

ID=16839188

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22606187A Pending JPS6468170A (en) 1987-09-09 1987-09-09 Automatic signal change circuit

Country Status (1)

Country Link
JP (1) JPS6468170A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6366669B1 (en) 2000-04-26 2002-04-02 Iosif Meynekhdrun System and method for providing universal access to interactive voice response systems
US7110530B2 (en) 2002-02-01 2006-09-19 Iosif Meynekhdrun System and method for providing universal access to voice response systems

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6366669B1 (en) 2000-04-26 2002-04-02 Iosif Meynekhdrun System and method for providing universal access to interactive voice response systems
US7110530B2 (en) 2002-02-01 2006-09-19 Iosif Meynekhdrun System and method for providing universal access to voice response systems

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