JPS6468170A - Automatic signal change circuit - Google Patents
Automatic signal change circuitInfo
- 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
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.
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)
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 |
-
1987
- 1987-09-09 JP JP22606187A patent/JPS6468170A/en active Pending
Cited By (2)
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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