JPS6394756A - Decision system for invalid holding call - Google Patents
Decision system for invalid holding callInfo
- Publication number
- JPS6394756A JPS6394756A JP24029786A JP24029786A JPS6394756A JP S6394756 A JPS6394756 A JP S6394756A JP 24029786 A JP24029786 A JP 24029786A JP 24029786 A JP24029786 A JP 24029786A JP S6394756 A JPS6394756 A JP S6394756A
- Authority
- JP
- Japan
- Prior art keywords
- transmission line
- time
- invalid
- detection means
- held
- 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
- 230000005540 biological transmission Effects 0.000 claims abstract description 54
- 238000001514 detection method Methods 0.000 claims abstract description 18
- 238000012360 testing method Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 7
- 238000012544 monitoring process Methods 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 6
- 230000008054 signal transmission Effects 0.000 abstract description 2
- 101000631760 Homo sapiens Sodium channel protein type 1 subunit alpha Proteins 0.000 abstract 1
- 102100028910 Sodium channel protein type 1 subunit alpha Human genes 0.000 abstract 1
- 238000012545 processing Methods 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔概要〕
ディジタル交換機の伝送路の保留時間が一定時間以上に
なると、その伝送路を検出手段に多重接続し、検出手段
により信号レベルが設定時間内に検出されないと、該伝
送路を無効保留であると判定する。[Detailed Description of the Invention] [Summary] When the holding time of a transmission line of a digital exchange exceeds a certain time, the transmission line is multiple-connected to a detection means, and if the signal level is not detected by the detection means within a set time, The transmission path is determined to be invalid.
本発明は、ディジタル交換機における伝送路の無効保留
を判定する方式に関するものである。The present invention relates to a method for determining whether or not a transmission line is held invalid in a digital exchange.
従来の電話交換機において、無効保留伝送路の判定は、
保守者により長時間保留された伝送路を盗聴することに
より無効保留か否かを判定する方式が多くとられていた
。また、他の従来例として。In conventional telephone exchanges, the determination of invalid and held transmission channels is as follows:
Many methods have been used to determine whether or not a transmission line is inactive by eavesdropping on a transmission line that has been held for a long time by a maintenance person. Also, as another conventional example.
伝送路が長時間保留されていることを時間監視により自
動的に検出すると、直ちにその伝送路を無効保留である
として、その伝送路を切断してしまう方式があった。There has been a method in which when it is automatically detected by time monitoring that a transmission line has been held for a long time, the transmission line is immediately deemed to be invalid and held and the transmission line is disconnected.
上記した前者の従来の方式では、保守者による盗聴とい
う行為を伴うことから、情報の保護の面で問題があり、
また後者の従来例の場合には、単に長時間伝送路が保留
されているだけで無効保留と判定するのは、その伝送路
上に信号が存在する有効保留の場合にも、これを切断す
ることになるという問題があった。The former conventional method described above involves wiretapping by the maintainer, which poses a problem in terms of information protection.
Furthermore, in the case of the latter conventional example, the determination of invalid hold simply because a transmission line has been held for a long time means that the signal is disconnected even if the signal is validly held on the transmission line. There was a problem with becoming.
本発明は、上記した従来の伝送路の無効保留の判定方式
における問題点を解決するため、長時間保留された伝送
路を、ディジタル交換機の多重接続機能により、信号レ
ベルの不存在を検出する手段に接続して保留された伝送
路の信号レベルを検出するものである。In order to solve the problems in the above-mentioned conventional method for determining whether a transmission path is invalid or pending, the present invention provides means for detecting the absence of a signal level in a transmission path that has been held for a long time by using a multiple connection function of a digital exchange. This is to detect the signal level of the transmission line connected to and suspended.
〔作用〕
保留となった伝送路に設定時間以上にわたって一定レベ
ル以上の信号が発生していないことを検出することによ
り、伝送路の無効保留と判定するものである。[Operation] By detecting that a signal of a certain level or higher has not been generated on the suspended transmission line for a set time or longer, it is determined that the transmission line is invalid and on hold.
次に、第１図に示されている本発明の第１の実施例を説
明する。Next, a first embodiment of the present invention shown in FIG. 1 will be described.
第１図において、Ａ、Ｂは加入者、１は１次時間スイッ
チＰＴＳＷ、２は空間スイッチＳＳＷ。In FIG. 1, A and B are subscribers, 1 is a primary time switch PTSW, and 2 is a space switch SSW.
３は２次時間スイッチ５ＴＳＷ、４．７．９はＡ・Ｄ相
互変換回路、５，６．８は集線回路、１０は検出装置、
５ＣＮＩ〜５ＣＮ３は走査信号線である。3 is a secondary time switch 5TSW, 4.7.9 is an A/D mutual conversion circuit, 5 and 6.8 are concentrator circuits, 10 is a detection device,
5CNI to 5CN3 are scanning signal lines.
加入者ＡとＢが、Ａ−Ｄ相互変換回路４．集線回路５，
１次時間スイッチ１．空間スイッチ２゜２次時間スイッ
チ３．集線回路６．Ａ−Ｄ相互変換回路７の伝送路を介
して接続されている場合。Subscribers A and B use an A-D mutual conversion circuit 4. Concentrator circuit 5,
Primary time switch 1. Space switch 2゜Secondary time switch 3. Concentrator circuit 6. When connected via the transmission path of the A-D mutual conversion circuit 7.
その伝送路が一定時間（たとえば、６時間）接続された
ままの状態であると制御装置が一定時間毎にアクセスす
る監視信号ＳＣＮ＋、５ＣＮ２の両者に一定時間状態変
化が発生しないため保留状態であることを検出すること
ができる。即ち、加入者Ａ、Ｂともに一定時間以上、オ
フフック状態であることが検出される。If the transmission line remains connected for a certain period of time (for example, 6 hours), the monitoring signals SCN+ and 5CN2, which are accessed by the control device at regular intervals, are in a pending state because no state change occurs for a certain period of time. can be detected. That is, it is detected that both subscribers A and B are in an off-hook state for a certain period of time or more.
本発明では、保留状態となったその伝送路を検出、識別
すると制御装置（図示せず）の制御により、２次時間ス
イッチ３において、加入者Ａ、 Ｂ間の信号伝送路１
１ （ハイウェイ上に割り当てられた特定のタイムスロ
ットの信号）を、他の伝送路１２ （他のハイウェイ上
の特定のタイムスロソト）と多重接続する。In the present invention, when the transmission line in the hold state is detected and identified, the signal transmission line 1 between subscribers A and B is switched in the secondary time switch 3 under the control of a control device (not shown).
1 (a signal in a specific time slot allocated on a highway) is multiplex connected to another transmission line 12 (a signal in a specific time slot on another highway).
伝送路１１上の音声やデータを表すディジタル信号は、
伝送路１２を介して集線回路８．Ａ−Ｄ相互変換回路９
を経て検出装置１０に供給される。Digital signals representing voice and data on the transmission line 11 are
Concentrator circuit 8 via transmission line 12. A-D mutual conversion circuit 9
It is supplied to the detection device 10 through the.
検出装置１０は、アナログ信号を入力し、その信号レベ
ルが予め設定したレベル以上であり、しかも予め設定し
た時間以上存在する場合、出力を発生しない。換言する
と、検出装置１０が駆動されて、設定時間内に音声やデ
ータの存在を表す設定レベル以上の信号が現れないと出
力を発生するもので、公知のレベル検知回路とタイマー
回路から成る。The detection device 10 receives an analog signal and does not generate an output if the signal level is higher than a preset level and exists for a preset time or longer. In other words, the detection device 10 is driven and generates an output when a signal of a set level or higher indicating the presence of voice or data does not appear within a set time, and is comprised of a known level detection circuit and a timer circuit.
検出装置１０からの出力は回線の状態検出用走査信号５
ＣＮ３として、制御装置がアクセスした時に、出力状態
の変化として検出され、制御装置は加入者Ａ、Ｂ間の伝
送路を無効保留として判別し、Ａ−Ｂ間の伝送路を強制
的に切断する処理を行う。他方、検出装置１０からの出
力が所定時間内に発生しない場合には、音声やデータが
存在することを表しているので、有効保留と判定され。The output from the detection device 10 is a scanning signal 5 for line state detection.
When accessed by the control device as CN3, it is detected as a change in the output state, and the control device determines the transmission path between subscribers A and B as invalid and pending, and forcibly disconnects the transmission path between A and B. Perform processing. On the other hand, if the output from the detection device 10 does not occur within the predetermined time, this indicates the presence of voice or data, and therefore it is determined that the hold is valid.
切断は行われない。No disconnection takes place.
次に、第２図に示す本発明の第２の実施例を説明する。Next, a second embodiment of the present invention shown in FIG. 2 will be described.
第２図において、１〜７は第１図の１〜７と同しもので
あり、２０，２１．２２は９通常切断障害時にスイッチ
を介する伝送路のテストを行うためのものであり、２０
は受信用メモリ、２１は送信用メモリ、２２はテストリ
ンク、２３は制御装置である。In FIG. 2, 1 to 7 are the same as 1 to 7 in FIG.
21 is a memory for reception, 21 is a memory for transmission, 22 is a test link, and 23 is a control device.
第２図において、加入者Ａ、Ｂ間の伝送路が一定時間（
６時間）以上保留されていると、第１図の実施例と同様
に、当該伝送路を検出する。次に当該伝送路を無効保留
の検出手段としてのテストリンク２２と接続する。In Figure 2, the transmission path between subscribers A and B is connected for a certain period of time (
If the transmission line has been on hold for more than 6 hours, the transmission line is detected in the same manner as in the embodiment shown in FIG. Next, the transmission line is connected to the test link 22 as a means for detecting invalidity.
このテストリンク２２は、伝送路の切断障害が検出され
た時に、障害個所を検査するために設けられている。This test link 22 is provided to inspect the location of the fault when a disconnection fault in the transmission line is detected.
テスト時にテスト用データを、送信用メモリ２１から、
２次時間スイッチ３においてテスト対象となる伝送路（
指定の線路の指定された往路、復路のタイムスロット）
に送り出し、そのテストデータを、テストリンク２２と
１次時間スイッチ１を介して受信用メモリ２０で受信し
、これを交換機の制御装置２３に送って処理する。At the time of testing, test data is transmitted from the transmission memory 21,
The transmission line to be tested in the secondary time switch 3 (
Specified outbound and return trip time slots on the specified track)
The test data is received by the reception memory 20 via the test link 22 and the primary time switch 1, and sent to the control device 23 of the exchange for processing.
長時間保留された伝送路をテストリンク２２に接続する
場合には、２次時間スイッチ３において。in the secondary time switch 3 when connecting a transmission line that has been held for a long time to the test link 22;
加入者Ａ、Ｂ間の伝送に用いられるタイムスロットのう
ち、折り返し用のタイムスロットを用いてテストリンク
２２に接続された伝送路と多重接続を行う。Among the time slots used for transmission between subscribers A and B, a return time slot is used to perform multiple connection with the transmission path connected to the test link 22.
これにより、テストリンク２２から、１次時間スイッチ
１を介して、受信用メモリ２０に当該加入者Ａ、Ｂ間の
伝送路上のディジタル信号が書き込まれる。As a result, the digital signal on the transmission path between the subscribers A and B is written from the test link 22 to the receiving memory 20 via the primary time switch 1.
メモリ２０のデータは２次に交換機の制御装置２３に送
られる。制御装置２３において、受は取られた長期保留
伝送路からのデータは、加入者Ａ。The data in the memory 20 is secondarily sent to the control device 23 of the exchange. In the control device 23, the data from the long-term hold transmission line that has been received is sent to subscriber A.
Ｂ間に伝送される信号レベルを符号化（ＰＣＭ）したデ
ータであるから、制御装置２３において。Since this is data obtained by encoding (PCM) the signal level transmitted between B and B, in the control device 23.
当該受信データに対し、予め設定した信号レベルに対応
するデータと比較し、設定した時間以上継続して設定レ
ベル以上の受信データが現れない場合に、当該伝送路を
無効保留であるとする判定出力を発生する処理を行う。Compares the received data with data corresponding to a preset signal level, and outputs a judgment that determines that the transmission path is invalid and pending if received data of a set level or higher does not appear for a set period of time or more. Perform processing to generate
この無効保留の判定基準である信号レベル及び時間の閾
値（設定値）は。What are the signal level and time thresholds (setting values) that are the criteria for determining whether this invalidation is pending?
コマンドを処理装置に入力することにより簡単に変更す
ることができる。It can be easily changed by entering commands into the processing device.
本発明による無効保留呼の判定方式によれば。 According to the invalid held call determination method according to the present invention.
無効保留の伝送路を自動的にかつ正確に判定することが
でき、伝送路の無効保留を防止することができ、伝送回
線の有効利用を達成することができる。It is possible to automatically and accurately determine a transmission line that is held invalid, it is possible to prevent a transmission line from being held invalid, and it is possible to achieve effective use of the transmission line.
第１図は本発明の第１の実施例の方式を示す図。 第２図は本発明の第２の実施例の方式を示す図である。 第１．第２図中。 １：１次時間スイッチ ２：空間スイッチ ３：２次時間スイッチ ４．７，９：Ａ−Ｄ相互変換回路 ５．６．８：集線回路 ｌＯ：検出装置 ２２：テストリンク ２３：制御装置 FIG. 1 is a diagram showing a system of a first embodiment of the present invention. FIG. 2 is a diagram showing a system of a second embodiment of the present invention. 1st. In Figure 2. 1: Primary time switch 2: Space switch 3: Secondary time switch 4.7, 9: A-D mutual conversion circuit 5.6.8: Concentrator circuit lO: detection device 22: Test link 23: Control device
Claims (3)
、スイッチの出側端子に設定レベル以上の信号が、設定
時間内に検出されないとき出力を発生する検出手段を設
け、制御装置が端末間の伝送路が形成されて所定時間以
上保留されていることを検出した際に該伝送路を前記検
出手段に多重接続し、前記検出手段からの出力を検出す
ることにより該伝送路を無効保留と判定することを特徴
とする無効保留呼の判定方式。(1) In a digital exchange equipped with a multiple connection function, a detection means is provided at the output terminal of the switch to generate an output when a signal higher than a set level is not detected within a set time, and the control device connects the transmission path between the terminals. When it is detected that the transmission line is formed and held for a predetermined time or longer, the transmission line is multiple connected to the detection means, and the transmission line is determined to be invalid and held by detecting the output from the detection means. An invalid held call determination method characterized by:
号について、設定時間内に設定レベル以上の信号が存在
しないことを検出する回路から成ることを特徴とする特
許請求の範囲第１項記載の無効保留呼の判定方式。(2) The detection means comprises a circuit that detects that there is no signal higher than a set level within a set time with respect to signals from multiple-connected transmission lines. Determination method for invalid held calls as described.
クを介する監視機構により構成し、多重接続された伝送
路からのディジタル信号について設定時間内に設定レベ
ル以上の信号が存在しないことを検出することを特徴と
する特許請求の範囲第１項記載の無効保留呼の判定方式
。(3) The detection means is constituted by a monitoring mechanism via a test link of a digital exchange, and detects that there is no signal of a set level or higher within a set time for digital signals from multiplexed transmission lines. A method for determining an invalid held call according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24029786A JPS6394756A (en) | 1986-10-09 | 1986-10-09 | Decision system for invalid holding call |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24029786A JPS6394756A (en) | 1986-10-09 | 1986-10-09 | Decision system for invalid holding call |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6394756A true JPS6394756A (en) | 1988-04-25 |
Family
ID=17057375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24029786A Pending JPS6394756A (en) | 1986-10-09 | 1986-10-09 | Decision system for invalid holding call |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6394756A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5023466A (en) * | 1988-02-12 | 1991-06-11 | Mitsubishi Denki Kabushiki Kaisha | Coaxial starter |
| JP2007096511A (en) * | 2005-09-27 | 2007-04-12 | Oki Electric Ind Co Ltd | State management system, ip phone exchange, and state management method |
| JP2008072378A (en) * | 2006-09-13 | 2008-03-27 | Nec Engineering Ltd | Ip communication system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5787659A (en) * | 1980-11-20 | 1982-06-01 | Nec Corp | Line restoration system for telephone exchange network |
-
1986
- 1986-10-09 JP JP24029786A patent/JPS6394756A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5787659A (en) * | 1980-11-20 | 1982-06-01 | Nec Corp | Line restoration system for telephone exchange network |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5023466A (en) * | 1988-02-12 | 1991-06-11 | Mitsubishi Denki Kabushiki Kaisha | Coaxial starter |
| JP2007096511A (en) * | 2005-09-27 | 2007-04-12 | Oki Electric Ind Co Ltd | State management system, ip phone exchange, and state management method |
| JP2008072378A (en) * | 2006-09-13 | 2008-03-27 | Nec Engineering Ltd | Ip communication system |
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