JPH06197382A - Signal transmission system - Google Patents
Signal transmission systemInfo
- Publication number
- JPH06197382A JPH06197382A JP25754392A JP25754392A JPH06197382A JP H06197382 A JPH06197382 A JP H06197382A JP 25754392 A JP25754392 A JP 25754392A JP 25754392 A JP25754392 A JP 25754392A JP H06197382 A JPH06197382 A JP H06197382A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- signal transmission
- transmission system
- call
- talking
- 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
Description
【０００１】[0001]
【産業上の利用分野】本発明は、アナログ電話専用回線
を使用してダイヤル信号の伝送を行う信号伝送装置にお
ける信号伝送方式に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a signal transmission system in a signal transmission device for transmitting a dial signal using an analog telephone dedicated line.
【０００２】[0002]
【従来の技術】ダイヤル信号の伝送にＤＴＭＦ信号を利
用する信号伝送装置においては、従来は、無通話時に０
〜９、＊、＃以外のＤＴＭＦ信号を流しておき、通話開
始時にこの信号を止めて相手側を起動させ、その後にダ
イヤル信号を送っている。2. Description of the Related Art In a signal transmission device that uses a DTMF signal for transmitting a dial signal, conventionally, there is no communication during a call.
A DTMF signal other than ~ 9, *, and # is sent, the signal is stopped at the beginning of a call to activate the other party, and then a dial signal is sent.
【０００３】[0003]
【発明が解決しようとする課題】従来の信号伝送装置に
あっては、通話開始時に単に信号を止めるだけで相手側
を起動させているので、回線障害または送信側装置故障
による信号断との区別がつかないという問題点があっ
た。In the conventional signal transmission apparatus, since the other side is activated by simply stopping the signal at the start of the call, it can be distinguished from the signal interruption due to the line failure or the failure of the transmission side apparatus. There was a problem that it didn't work.
【０００４】本発明は、通話開始に先立つ信号止めと、
障害による信号断とを明確に区別して、無用な起動をさ
せないとともに、障害表示が可能な信号伝送方式を提供
することを目的としている。The present invention provides a signal stop prior to the start of a call,
It is an object of the present invention to provide a signal transmission method that can clearly display a signal disconnection due to a failure, prevent unnecessary activation, and display a failure.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するため
に、本発明の信号伝送方式においては、無通話時に、Ｄ
ＴＭＦ信号の片群のみを伝送し、通話開始時に、もう片
群を加えた正規のＤＴＭＦ信号を短時間送出して、相手
側を起動させている。In order to achieve the above object, in the signal transmission system of the present invention, D
Only one group of TMF signals is transmitted, and at the start of a call, a regular DTMF signal including the other group is transmitted for a short time to activate the other party.
【０００６】[0006]
【作用】以上のような信号伝送方式においては、受信側
で信号停止時にＤＴＭＦ信号の有無をみることによっ
て、起動のための信号停止か、障害による信号断かを区
別できる。In the above signal transmission system, it is possible to distinguish between the signal stop for activation and the signal disconnection due to a failure by checking the presence or absence of the DTMF signal when the signal is stopped on the receiving side.
【０００７】[0007]
【発明の効果】本発明は、以上説明したように構成され
ているので、障害による無用な起動が防止できるととも
に、障害警報を発生させる効果を有する。Since the present invention is configured as described above, it is possible to prevent unnecessary activation due to a fault and to generate a fault alarm.
Claims (1)
伝送し、通話開始時に、もう片群を加えた正規のＤＴＭ
Ｆ信号を短時間送出して、相手側を起動させることを特
徴とする信号伝送方式。1. A normal DTM in which only one group of DTMF signals is transmitted during a non-call, and the other group is added at the start of a call.
A signal transmission method characterized by sending the F signal for a short time to activate the other party.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25754392A JPH06197382A (en) | 1992-08-12 | 1992-08-12 | Signal transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25754392A JPH06197382A (en) | 1992-08-12 | 1992-08-12 | Signal transmission system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06197382A true JPH06197382A (en) | 1994-07-15 |
Family
ID=17307747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25754392A Pending JPH06197382A (en) | 1992-08-12 | 1992-08-12 | Signal transmission system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06197382A (en) |
-
1992
- 1992-08-12 JP JP25754392A patent/JPH06197382A/en active Pending
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