JPS61121088U - - Google Patents
Info
- Publication number
- JPS61121088U JPS61121088U JP414985U JP414985U JPS61121088U JP S61121088 U JPS61121088 U JP S61121088U JP 414985 U JP414985 U JP 414985U JP 414985 U JP414985 U JP 414985U JP S61121088 U JPS61121088 U JP S61121088U
- Authority
- JP
- Japan
- Prior art keywords
- detection circuit
- outside line
- hold
- loop
- output
- 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.)
- Granted
Links
- 238000001514 detection method Methods 0.000 claims description 8
- 239000000725 suspension Substances 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Sub-Exchange Stations And Push- Button Telephones (AREA)
Description
図は本考案の実施例を示し、第１図は全構成の
ブロツク図、第２図は制御状況のフローチヤート
である。
１……外線、２……ＫＳＵ（主装置）、３……
通話線、４……ＴＷＳＴ（標準電話機）、１１…
…ＨＬＤ（保留回路）、１２……ＬＰＤ（ループ
検出回路）、１６……ＣＮＴ（制御回路）、ＦＡ
〜ＦＥ，Ｉ，Ｈ，ＢＵ……リレー、ｆａ〜ｆｅ，
ｉ，ｈ，ｂｕ……接点。
The figures show an embodiment of the present invention, with FIG. 1 being a block diagram of the entire configuration and FIG. 2 being a flowchart of the control situation. 1...External line, 2...KSU (main unit), 3...
Call line, 4...TWST (standard telephone), 11...
...HLD (holding circuit), 12...LPD (loop detection circuit), 16...CNT (control circuit), FA
~FE, I, H, BU...Relay, fa~fe,
i, h, bu...contact.
Claims (1)
標準電話機を接続し、該標準電話機から前記通話
線を介して到来するフツキング情報を前記主装置
のループ検出回路により検出し、通話中の前記外
線を保留状態とする電話装置において、前記ルー
プ検出回路の検出出力に基づきフツキング時間を
判定する判定手段と、前記ループ検出回路のルー
プ開放検出出力に応じ通話中の前記外線を保留状
態にすると共に前記判定手段の疑似フツキング判
定出力に応じて前記保留状態を解除する保留制御
手段と、前記疑似フツキング判定出力にしたがい
前記ループ検出回路の検出動作を一定時間中無効
とする無効化手段とを備えたことを特徴とする電
話装置。 A standard telephone is connected to the main device that accommodates an outside line via a pair of communication lines, and the loop detection circuit of the main device detects the hooking information that comes from the standard telephone via the communication line, and detects when a call is in progress. In the telephone device that puts the outside line on hold, the outside line is placed on hold in accordance with the detection output of the loop detection circuit, and the outside line is placed on hold in response to the loop open detection output of the loop detection circuit. and suspension control means for canceling the suspension state in response to a pseudo-hooking determination output of the determination means; and disabling means for disabling the detection operation of the loop detection circuit for a certain period of time in accordance with the pseudo-hooking determination output. A telephone device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP414985U JPH0246150Y2 (en) | 1985-01-18 | 1985-01-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP414985U JPH0246150Y2 (en) | 1985-01-18 | 1985-01-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61121088U true JPS61121088U (en) | 1986-07-30 |
| JPH0246150Y2 JPH0246150Y2 (en) | 1990-12-05 |
Family
ID=30479444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP414985U Expired JPH0246150Y2 (en) | 1985-01-18 | 1985-01-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0246150Y2 (en) |
-
1985
- 1985-01-18 JP JP414985U patent/JPH0246150Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0246150Y2 (en) | 1990-12-05 |
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