JPH01317058A - International telephone terminal set connection system - Google Patents

International telephone terminal set connection system

Info

Publication number
JPH01317058A
JPH01317058A JP14956488A JP14956488A JPH01317058A JP H01317058 A JPH01317058 A JP H01317058A JP 14956488 A JP14956488 A JP 14956488A JP 14956488 A JP14956488 A JP 14956488A JP H01317058 A JPH01317058 A JP H01317058A
Authority
JP
Japan
Prior art keywords
terminal
signal
international
interface
adaptor
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
Application number
JP14956488A
Other languages
Japanese (ja)
Inventor
Shinichi Manabe
間鍋　伸一
Masaki Kawabata
正樹 川端
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
NEC Communication Systems Ltd
Original Assignee
NEC Corp
NEC Communication Systems Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NEC Corp, NEC Communication Systems Ltd filed Critical NEC Corp
Priority to JP14956488A priority Critical patent/JPH01317058A/en
Publication of JPH01317058A publication Critical patent/JPH01317058A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To simplify the system constitution and the signal conversion by providing a means converting directly an interface signal at a terminal equipment side and an interface signal at an international exchange side respectively mutually. CONSTITUTION:A terminal adaptor 3 is connected to an international telephone terminal set 1 by a 2-wire cable 6 and connected to an international exchange 5 by a 6-wire cable 8. Then the terminal adaptor 3 recognizes the hook-off of a user of the terminal set 1 by a line loop, returns a dial tone DT to the terminal set 1 and enters the data reception state. When the reception of a data of a telephone number TELN dialed by the user of the terminal equipment 1 is finished by the terminal adaptor 3, a start SZ is applied to the international exchange 5. The terminal adaptor 3 is used to eliminate the need for the interface between the terminal adaptor and the signal converter taken into account and an interruption processing of a call is attained. Thus, the system is simplified and the signal is converted simply.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は国際電話端末接続方式に関する。[Detailed description of the invention] [Industrial application field] The present invention relates to an international telephone terminal connection system.

〔従来の技術〕[Conventional technology]

従来の端末アダプタを用いた国際電話端末接続方式にお
いては、第３図に示すように、国際電話端末１から出た
２線ケーブル６を端末アダプタ２を通して４線ケーブル
７に接続する。国際交換機５は４線の通話線にＳＳ（信
号送出）線及びＳＲ（信号受信）線の監視信号線を加え
た計６線で接続されるため、信号変換装置４を用いて４
線ケーブル７を６線ケーブル８に変換する必要がある。In the conventional international telephone terminal connection system using a terminal adapter, as shown in FIG. 3, a two-wire cable 6 from an international telephone terminal 1 is connected to a four-wire cable 7 through a terminal adapter 2. Since the international exchange 5 is connected with a total of 6 wires, including 4 communication lines, SS (signal sending) line and SR (signal receiving) line, supervisory signal lines, the signal converter 4 is used to
It is necessary to convert the wire cable 7 into a six wire cable 8.

この接続形態を用いた際、端末１と端末アダプタ２との
間、端末アダプタ２と信号変換装置４との間、及び信号
変換装置４と国際交換機５との間のインターフェースの
一例を第４図に示す。第４図を参照すると、端末１はオ
フフックしたことを回線ループを形成することにより端
末アダプタ２に知らせる。この通知を受けた端末アダプ
タ２は信号変換装置４に向けてｆｌ）−ン（２４００Ｈ
ｚ　）の起動信号（ＳＺ）を送出する。この起動信号を
受けた信号変換装置４は応答信号（ＰＴＳ）を端末アダ
プタ２に対してｆ２）−ン（２６００Ｈｚ　）で返す。When this connection form is used, an example of the interface between the terminal 1 and the terminal adapter 2, between the terminal adapter 2 and the signal converter 4, and between the signal converter 4 and the international exchange 5 is shown in FIG. Shown below. Referring to FIG. 4, terminal 1 notifies terminal adapter 2 that it has gone off-hook by forming a line loop. Upon receiving this notification, the terminal adapter 2 sends a fl)-on (2400H) signal toward the signal conversion device 4.
Sz)'s activation signal (SZ) is sent. The signal conversion device 4 that receives this activation signal returns a response signal (PTS) to the terminal adapter 2 at f2)-tone (2600 Hz).

端末アダプタ２はｆ２）−ンを受信すると、ｆｌ）−ン
の送出を停止する。また、信号変換装置４は端末アダプ
タ２のｆｌ）−ンの送出停止を認知してｆ２トーンの送
出を停止する。端末アダプタ２は信号変換装置４によっ
てｆ２）−ンの送出が停止されたことを認知すると同時
に端末１に対してダイヤルトーン（ＤＴ）を返す。端末
１がダイヤルトーンを受信すると、端末１のユーザは相
手の電話番号をダイヤルする。端末アダプタ２は第１ダ
イヤルを認知すると同時にダイヤルトーン送出を停止し
、スルー状態となる。端末１から送出されるデータは直
接に信号変換装置４に伝送される。電話番号（置Ｎ）を
全て受信した信号変換装置４はＳＳ線の信号を停止する
ことによって国際交換機５に対して起動（ＳＺ）をかけ
、両者の接続処理に入る。When terminal adapter 2 receives f2)-, it stops sending fl)-. Further, the signal conversion device 4 recognizes that the terminal adapter 2 has stopped transmitting the fl)-tone, and stops transmitting the f2 tone. The terminal adapter 2 returns a dial tone (DT) to the terminal 1 at the same time when it recognizes that the signal conversion device 4 has stopped sending f2)-. When terminal 1 receives the dial tone, the user of terminal 1 dials the telephone number of the other party. As soon as the terminal adapter 2 recognizes the first dial, it stops transmitting the dial tone and enters the through state. Data sent from the terminal 1 is directly transmitted to the signal conversion device 4. The signal conversion device 4, which has received all the telephone numbers (place N), stops the signal on the SS line, activates (SZ) the international exchange 5, and starts connection processing between the two.

〔発明が解決しようとする課題〕[Problem to be solved by the invention]

上述した接続方式においては、信号変換を２段階に分割
して行っており、端末アダプタ及び信号変換装置のそれ
ぞれが独自のファームウェアで動作しているため、機能
変更及び機能追加が容易でない。In the above-described connection system, signal conversion is performed in two stages, and the terminal adapter and signal conversion device each operate with their own firmware, making it difficult to change or add functions.

〔課題を解決するための手段〕[Means to solve the problem]

本発明の国際電話端末接続方式は、国際電話端末を国際
交ｔＩＡ機に接続する交換システムにおいて、前記端末
側のインタフェース信号と前記国際交換機側のインタフ
ェース信号とを相互にそれぞれ直接的に変換する手段を
備える。The international telephone terminal connection system of the present invention is a switching system for connecting an international telephone terminal to an international exchange tIA machine, and includes means for directly converting an interface signal on the terminal side and an interface signal on the international exchange side, respectively. Equipped with.

〔実施例〕〔Example〕

次に、本発明について図面を参照して説明する。 Next, the present invention will be explained with reference to the drawings.

本発明の一実施例を示す第１図を参照すると、端末アダ
プタ３は国際電話端末１と２線ケーブル６によって接続
され、かつ国際交換機５と６線ケーブル８によって接続
されている。この端末アダプタ３は従来の端末アダプタ
と信号変換装置とを一体化したものであり、これを用い
ると信号変換装置が不要となり、直接に国際交換機５に
接続することが可能となる。Referring to FIG. 1, which shows an embodiment of the present invention, a terminal adapter 3 is connected to an international telephone terminal 1 by a two-wire cable 6, and is connected to an international exchange 5 by a six-wire cable 8. This terminal adapter 3 is a combination of a conventional terminal adapter and a signal converter, and using this terminal adapter eliminates the need for a signal converter and allows direct connection to the international exchange 5.

第２図は第１図に示す接続形態を用いた際の端末１と端
末アダプタ３との間及び端末アダプタ３と国際交換機５
との間のインターフェースの一例を示す。端末アダプタ
３は端末１のユーザがオフフックしたことを回線ループ
により認知すると同時に端末１に対してダイヤルトーン
（ＤＴ）を返し、データの受信状態に入る。端末工のユ
ーザがダイヤルした電話番号（置Ｎ）のデータを端末ア
ダプタ３が受信し終ると、国際交換機５に対して起動（
ＳＺ）をかける。Figure 2 shows the connection between the terminal 1 and the terminal adapter 3 and between the terminal adapter 3 and the international exchange 5 when using the connection configuration shown in Figure 1.
An example of an interface between The terminal adapter 3 recognizes through the line loop that the user of the terminal 1 has gone off-hook, and at the same time returns a dial tone (DT) to the terminal 1 and enters a data receiving state. When the terminal adapter 3 finishes receiving the data of the telephone number (position N) dialed by the terminal user, it sends an activation (
Multiply by SZ).

以上、呼の接続処理についてのみ述べたが、上述の端末
アダプタ３を用いることにより、従来のように端末アダ
プタと信号変換装置との間のインターフェースを考慮す
る必要がなく、呼の切断処理も同様に簡単に行うことが
できる。つまり、端末側インターフェースを交換機側イ
ンターフェースに、またはその逆方向の変換が端末アダ
プタ３だけで行えることになる。Although only the call connection process has been described above, by using the terminal adapter 3 described above, there is no need to consider the interface between the terminal adapter and the signal conversion device as in the past, and the call disconnection process is also the same. can be easily done. In other words, the terminal adapter 3 alone can convert the terminal side interface to the exchange side interface and vice versa.

〔発明の効果〕〔Effect of the invention〕

以上説明したように本発明によれば従来の端末アダプタ
と信号変換装置とを一体化することにより、システム構
成を簡単化し、同時に信号の変換をより簡単に行うこと
ができる。As described above, according to the present invention, by integrating a conventional terminal adapter and a signal conversion device, the system configuration can be simplified and at the same time, signal conversion can be performed more easily.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図及び第２図は本発明の一実施例を示す図、第３図
及び第４図は従来例を示す図である。 １・・・国際電話端末、３・・・端末アダプタ、５・・
・国際交換機、６・・・２線ケーブル、８・・・６線ケ
ーブル。 代理人　弁理士　　内　原　　晋 茅　１１！Ｉ 々 第　３　国 第　２（！ｌ1 and 2 are diagrams showing an embodiment of the present invention, and FIGS. 3 and 4 are diagrams showing a conventional example. 1... International phone terminal, 3... Terminal adapter, 5...
・International exchange, 6...2 wire cable, 8...6 wire cable. Agent Patent Attorney Shinkyo Uchihara 11! I 3rd country 2nd (!l

Claims (1)

【特許請求の範囲】[Claims] 国際電話端末を国際交換機に接続する交換システムにお
いて、前記端末側のインタフェース信号と前記国際交換
機側のインタフェース信号とを相互にそれぞれ直接的に
変換する手段を備えることを特徴とする国際電話端末接
続方式。An international telephone terminal connection method in a switching system for connecting an international telephone terminal to an international exchange, comprising means for directly converting an interface signal on the terminal side and an interface signal on the international exchange side, respectively. .
JP14956488A 1988-06-16 1988-06-16 International telephone terminal set connection system Pending JPH01317058A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14956488A JPH01317058A (en) 1988-06-16 1988-06-16 International telephone terminal set connection system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14956488A JPH01317058A (en) 1988-06-16 1988-06-16 International telephone terminal set connection system

Publications (1)

Publication Number Publication Date
JPH01317058A true JPH01317058A (en) 1989-12-21

Family

ID=15477935

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14956488A Pending JPH01317058A (en) 1988-06-16 1988-06-16 International telephone terminal set connection system

Country Status (1)

Country Link
JP (1) JPH01317058A (en)

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