JPS6370775U - - Google Patents
Info
- Publication number
- JPS6370775U JPS6370775U JP16372486U JP16372486U JPS6370775U JP S6370775 U JPS6370775 U JP S6370775U JP 16372486 U JP16372486 U JP 16372486U JP 16372486 U JP16372486 U JP 16372486U JP S6370775 U JPS6370775 U JP S6370775U
- Authority
- JP
- Japan
- Prior art keywords
- central office
- extension
- exchange
- trunk
- circuit
- 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
- 238000001514 detection method Methods 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Exchange Systems With Centralized Control (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
- Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
Description
第１図は本考案一実施例のブロツク図、第２図
は同じく呼出音検出回路のブロツク図である。
１…発呼内線、２…内線回路、３…デイジタル
ＰＢＸ、４…局線トランク、５…呼出音検出回路
、１２…中央処理装置、１３…加入者回路、１４
…局交換機、１５…加入者回路、１６…被呼内線
。
FIG. 1 is a block diagram of an embodiment of the present invention, and FIG. 2 is a block diagram of a ringing tone detection circuit. 1... Calling extension, 2... Extension circuit, 3... Digital PBX, 4... Office line trunk, 5... Ringing detection circuit, 12... Central processing unit, 13... Subscriber circuit, 14
...Central exchange, 15...Subscriber circuit, 16...Called extension.
Claims (1)
続された構内交換機（ＰＢＸ）と、該ＰＢＸに接
続された局線トランクと、該局線トランクに接続
され呼出音を検出する呼出音検出回路と、該呼出
音検出回路と前記ＰＢＸ間に接続された中央処理
装置と、前記局線トランクに加入者回路を介して
接続された局交換機と、該局交換機に接続された
被呼内線とを備え、 前記中央処理装置の制御により前記呼出音検出
回路は所定時間毎に前記局交換機から前記発呼内
線側に送出された呼出音を検出し、前記局交換機
からの呼出音が検出されなくなることにより前記
被呼内線の応答を検出して、前記内線回路と前記
局線トランクとを通話状態にすることを特徴とす
る相手方応答検出装置。[Scope of utility model registration claim] A calling extension, a private branch exchange (PBX) connected to the calling extension via an extension circuit, a central office trunk connected to the PBX, and a central office trunk connected to the central office trunk. a central processing unit connected between the ring detection circuit and the PBX; a central office exchange connected to the central office line trunk via a subscriber circuit; a called extension connected to an exchange, and under the control of the central processing unit, the ring detection circuit detects the ring tone sent from the central office exchange to the calling extension at predetermined intervals, and A response detection device for detecting a response from the other party, wherein a response from the called extension is detected when a ringing tone from the exchange is no longer detected, and the extension circuit and the central office trunk are placed in a communication state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16372486U JPS6370775U (en) | 1986-10-24 | 1986-10-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16372486U JPS6370775U (en) | 1986-10-24 | 1986-10-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6370775U true JPS6370775U (en) | 1988-05-12 |
Family
ID=31092190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16372486U Pending JPS6370775U (en) | 1986-10-24 | 1986-10-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6370775U (en) |
-
1986
- 1986-10-24 JP JP16372486U patent/JPS6370775U/ja active Pending
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