JPS60146563A - Limited incoming system - Google Patents
Limited incoming systemInfo
- Publication number
- JPS60146563A JPS60146563A JP321984A JP321984A JPS60146563A JP S60146563 A JPS60146563 A JP S60146563A JP 321984 A JP321984 A JP 321984A JP 321984 A JP321984 A JP 321984A JP S60146563 A JPS60146563 A JP S60146563A
- Authority
- JP
- Japan
- Prior art keywords
- subscriber
- call
- telephone
- circuit
- identification information
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/42—Systems providing special services or facilities to subscribers
- H04M3/436—Arrangements for screening incoming calls, i.e. evaluating the characteristics of a call before deciding whether to answer it
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は、限定着信方式に関し、詳しくは電話の着信時
に、着側加入者があらかじめ限定登録しておいた相手か
らの着信のみを許容する方式に関するものである。[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a limited incoming call system, and more specifically, a system that allows incoming calls only from parties that the receiving subscriber has preliminarily registered. It is related to.
現在、電話は、日常の最も重要な通信手段の一つとなっ
ている。わが国においては、電話網の完全自動化が達成
され、一般に広く利用されているが、従来の電話網のサ
ービスは、発側優先のサービスであり、着側にはあまり
選択権の無いサービスということができる。すなわち、
着側では、電話がかかつてきても、受話器をとって通話
を開始するまでは相手が誰であるかの確認ができず、通
話開始後であっても相手が名乗らない限りは確認できな
いため、かかってきた電話の相手を選んで応答すること
ができないという欠点があった。このため電話のこのよ
うな性質を悪用し、脅迫や嫌がらせの手段として用いら
れることもままあった。Nowadays, the telephone has become one of the most important means of communication in everyday life. In Japan, complete automation of the telephone network has been achieved and it is widely used by the general public, but the conventional telephone network service is a service that gives priority to the calling party, and the called party does not have much choice. can. That is,
Even if the called party receives a call, they cannot confirm who the other party is until they pick up the phone and begin the call, and even after the call has started, they cannot confirm the identity of the other party unless they identify themselves. However, there was a drawback that it was not possible to select the person to answer the incoming call. For this reason, these characteristics of telephone calls were often exploited and used as a means of intimidation and harassment.
これらを解決するには、電話の着信があったとき、発呼
者電話番号等の発側加入者識別情報(以下IDと記す)
を着側で知ることができれば良い。To solve these problems, when a call is received, the calling subscriber identification information (hereinafter referred to as ID) such as the calling party's telephone number is required.
It would be good if the destination could know this.
そのためには、通話開始前にID情報を発側から着側に
転送する必要があるが、既存の電話網にはこのような機
能は無い。現在1将来の新しい通信サービスとして、通
信網をディジタル化し、電話。To do this, it is necessary to transfer ID information from the calling side to the called side before starting a call, but existing telephone networks do not have such a function. Nowadays 1 As a new communication service in the future, communication networks will be digitized and telephone calls will become available.
ファクス、データ通信等を統合した方式の研究が行われ
ており、これが実現されれば、より情報の転送も可能と
なるが、既存のアナログmt網とは全く別のディジタル
網を新しく構築することとなるため、その完成には多大
の経費と時間を要することが予想される。Research is being conducted on a system that integrates fax, data communications, etc., and if this is realized, it will be possible to transfer more information, but it will require the construction of a new digital network that is completely different from the existing analog MT network. Therefore, it is expected that a large amount of cost and time will be required for its completion.
本発明の目的は、このような従来の問題を解決し、大規
模な網の改造を行うことなく、着信加入者の希望する相
手からの着信のみを許容するようKして、脅迫や嫌がら
せ電話を防止できる限定着信方式を提供することにある
。The purpose of the present invention is to solve such conventional problems and to prevent threatening and harassing calls by allowing incoming calls only from parties desired by the incoming subscriber without making large-scale network modifications. The purpose is to provide a limited incoming call method that can prevent such problems.
上記目的を達成するため、本発明の限定着信方式では、
加入者の名前、電話番号等の加入者識別情報を登録する
手段と、該登録された識別情報を着側に転送する手段を
備えた発側付加装置、および着信検出手段、無課金応答
手段、上記識別情報を受信する手段、着信を許容する加
入者識別情報を登録し、該情報と転送された加入者識別
情報とを照合する手段を備えた着信付加装置を、交換機
の加入者端子対応に設け、着信時の通話開始前に、着側
付加装置で無課金応答することにより、発側加入者の発
側付加装置と着側加入者の着側付加装置間に通話路を設
定して、該発側付加装置から転送された識別情報と着側
圧登録された識別情報とを照合し、両者が一致したとき
のみ、着側端末に呼出し信号を送出することに特徴があ
る。In order to achieve the above object, in the limited call receiving method of the present invention,
a calling side additional device comprising a means for registering subscriber identification information such as a subscriber's name and telephone number, and a means for transferring the registered identification information to a called side, an incoming call detection means, a non-charging response means, A call receiving add-on device equipped with a means for receiving the above identification information, a means for registering subscriber identification information that allows incoming calls, and a means for comparing the information with the transferred subscriber identification information is installed in correspondence with the subscriber terminal of the exchange. When a call is received, and before the call starts, a call path is established between the calling side additional device of the calling side subscriber and the called side side additional device of the called side subscriber by making a non-charging response at the called side side additional device, The feature is that the identification information transferred from the originating side additional device is compared with the identification information registered in the terminating side pressure, and only when the two match, a paging signal is sent to the terminating side terminal.
第1図は、本発明の実施例を示す電話交換網のブスツク
図である。加入者線交換機(以下LSと記す)110発
側加入者端子10および着側加入者端子12対応に発側
付加装置(以下発ADPと記す)2および着側付加装置
(以下着ADPと記す)14をそれぞれ設置して実施し
た場合を示しである。なお、実線の電話網では、発側L
Sと着側LSの間に中継交換機が入る場合もあるが、動
作シーケンス等は概ね同じであるため、ここでは発側電
話機1および着側電話機2が同−LS内に収容されてい
る場合を例にとって説明する。FIG. 1 is a block diagram of a telephone switching network illustrating an embodiment of the present invention. A subscriber line switch (hereinafter referred to as LS) 110 corresponds to an originating subscriber terminal 10 and a terminating subscriber terminal 12, an originating side additional device (hereinafter referred to as originating ADP) 2 and a terminating side additional device (hereinafter referred to as terminating ADP). This figure shows the case where 14 were installed and implemented. In addition, in a solid telephone network, the calling party L
Although a trunk exchange may be inserted between S and the destination LS, the operation sequence etc. are generally the same, so here we will consider the case where the originating phone 1 and the destination phone 2 are accommodated in the same LS. Let me explain using an example.
第1図の発側加入者線9および着側加入者線13は、通
常、2腺で構成されており、接続動作における2腺間の
直流′電圧条件等は、第2図に示すよう罠なっている。The originating subscriber line 9 and the terminating subscriber line 13 in FIG. 1 are usually composed of two glands, and the DC' voltage conditions between the two glands during connection operation are as shown in FIG. 2. It has become.
すなわち、発呼前の平常状態では、発側2着側とも、L
lが十地気、L2が一48Vとなっている。In other words, in the normal state before a call is made, both the calling and receiving sides are
l is 10 earth ki, and L2 is 148V.
第1図発側′tじ詰機1をオフフックすると、発側加入
者線9に直流ループができ、これを発ADP2のループ
検出回路6で検出し、またLSIIからはこのループに
より発側に発信音が送られてくる(第2図〜の)参照)
。ループ検出回路6は、たとえば第3図に示すような発
光ダイオード27.28とフォトトランジスタ29.3
0とを組合せたフォトカップラ31.32の発光ダイオ
ード27゜2δを電流が双方向に流れるように互いに逆
向きに並列接続したものを回琢に直列に挿入することに
より、容易に構成できる。LDOは、ループ検出出力を
示す。続いて通常の電話機の場合と同じ操作で着側電話
機26の電話番号をダイヤルすると、呼出中の状態とな
り、LSllから発側へは呼出音が、また着側へは呼出
信号が送出されるとともに、着側加入者線13の極性が
反転し、Llが一48V、L2が十地気となる(第2図
−(4)参照)。When the originating side jammer 1 is off-hook, a DC loop is created in the originating subscriber line 9, which is detected by the loop detection circuit 6 of the originating ADP 2, and from the LSII, the originating side is A dial tone is sent (see Figure 2~)
. The loop detection circuit 6 includes, for example, a light emitting diode 27.28 and a phototransistor 29.3 as shown in FIG.
It can be easily constructed by inserting the light emitting diodes 27°2δ of the photocouplers 31 and 32 in parallel with each other in opposite directions so that the current flows in both directions, and inserting them in series in the circuit. LDO indicates loop detection output. Next, when you dial the telephone number of the called party's telephone 26 using the same operations as with a normal telephone, the caller enters the ringing state, and the LSll sends a ring tone to the calling party and a ringing signal to the called party. , the polarity of the terminating subscriber line 13 is reversed, Ll becomes -48V and L2 becomes 148V (see Figure 2-(4)).
なお、LlとL2力職訊纏で結合している図は受話器O
Nの状MU、LよとL2が実線で結合している図は受話
器OFFの状態を、それぞれ示している。In addition, the diagram that connects Ll and L2 manual labor is the telephone receiver O.
The figures in which N-shaped MU, L-shaped and L2 are connected by solid lines respectively show the state where the handset is off.
−召A D P l 4−の名信検出回W+’= 16
でこの反転を検出すると、無課金応答回路17でL2−
Llの向きにのみ電流を流すような片方向ループを形成
することにより、無課金応答を行う。着信検出回路16
における反転検出は、たとえば汎用のコンパレータ回路
等を使用して容易に実現できるし、また同詩に送られて
くる呼出信号(75V、16Hの交流で、1秒接、2秒
断の繰返し)を検出する方式であっても良い。無課金応
答回路17は、たとえば第4図に示すようなL2−LL
の向きに電流を流すダイオード33と直列抵抗34等で
簡単に構成できる。また、L2→L1の向きに電流を流
す発光ダイオードと直流抵抗およびフメ°トトランジス
タ等を組合せることにより着信検出器616と無課金応
答回路17の両機能を同時に実現させることも可能であ
る。-Calling A D P l 4-'s reputation detection times W+'= 16
When this reversal is detected, the non-charging response circuit 17 outputs L2-
By forming a unidirectional loop that allows current to flow only in the direction of Ll, a non-charging response is performed. Incoming call detection circuit 16
Reversal detection can be easily realized using, for example, a general-purpose comparator circuit, and also by detecting the call signal sent to the same poem (75V, 16H AC, repeatedly connected for 1 second and disconnected for 2 seconds). A detection method may also be used. The non-charging response circuit 17 is, for example, L2-LL as shown in FIG.
It can be easily constructed by using a diode 33 that allows current to flow in the direction of , a series resistor 34, and the like. Furthermore, by combining a light emitting diode that allows current to flow in the direction of L2→L1, a direct current resistor, a double-metal transistor, etc., it is possible to simultaneously realize both the functions of the incoming call detector 616 and the non-charging response circuit 17.
無課金応答は、既存電話網の着信無料回線のトランクで
既知実施さ!]、ている技術であるため、ここではその
詳しい説明は省略するが、この状態では、加入者線の直
流電圧条件は第2図−α)〜(3)と同じ状態で、II
′!出音および呼出信号ζま停iユされ、課金が111
1始されないまi発ADP2と着ADP、14との間に
通話路が形成される。No-charge response is known to be implemented on the trunk of the incoming toll-free line of the existing telephone network! ], the detailed explanation is omitted here, but in this state, the DC voltage conditions of the subscriber line are the same as in Figure 2-α) to (3), and II
′! The sound output and ringing signal will be stopped, and the charge will be 111%.
A communication path is formed between the i-originating ADP 2 and the terminating ADP 14 before it even begins.
以上、無課金応答の動作の概要を説明したカタ、実際の
動作はほとんど瞬時に実行されるため、LSllから発
側へ呼出音が、また着側へ呼出信号が送出される時間は
非常に短く、実用上(牙とんどOに近いため、発側電話
機1ではLSIIカ〜ら送出される呼出音はほとんど聞
こえなし1゜そこで、発側加入者に一般電話機の場合と
比べて違和感を感じさせないために、着A D P 1
4では無課金応答後、呼出音送出回路15から、本来L
SIIから送出されるのと同じ呼出音(400Hzを1
6H2で振幅変調(AM)L、、これを1秒オン、2秒
オフで繰返したもの)を送出する。The above is an overview of the operation of the non-charging response.The actual operation is executed almost instantly, so the time it takes for the LSll to send a ring tone to the calling party and a ringing signal to the called party is very short. In practical terms (because it is close to the LSII phone), the calling phone 1 can hardly hear the ringing tone sent from the LSII card.Therefore, the calling subscriber feels a sense of discomfort compared to the case of a regular phone. In order to prevent this, please contact A D P 1
4, after the non-charging response, the ring tone sending circuit 15 originally outputs L.
Same ringtone as that sent from SII (400Hz 1
At 6H2, amplitude modulation (AM) L, which is repeated for 1 second on and 2 seconds off) is transmitted.
呼出音送出回路15から送出された呼出音は、発ADP
2の呼出音受信器8で受信され、これにより、発ADP
2は、* A D P 14との闇に無課金応答による
通信路が設定されたことを知る。呼出音受信器8は、4
00H2を搬送波とするAMの受信器で受信(u :、
l:d )後、バンド1<スフイルタでl 6 l−l
ff1 の周波’ktM分を検出するという公知の技術
で容易に実現できるし、また4 00 Hz の周波数
成分を検出するトーン受信器の出力が1秒。The ringing tone sent out from the ringing tone sending circuit 15 is
The ring tone receiver 8 of No. 2 receives
2 learns that a communication channel with *ADP 14 has been secretly set up through a non-chargeable response. The ringing receiver 8 has 4
Received by AM receiver with carrier wave 00H2 (u:,
l:d), then band 1 < filter l 6 l-l
This can be easily realized using the known technique of detecting the frequency 'ktM of ff1, and the output of a tone receiver that detects the frequency component of 400 Hz is 1 second.
2秒の周期でオン、オフとなることを計数するよ゛うな
方式のものであっても良い。It may be of a type that counts on and off times in a 2-second cycle.
呼出音は、1秒オン、2秒オフの繰返しであるため、呼
出音受信器8で呼出音の切れ目(2秒オフの状態)を検
出すると、それ以後光ADP2から着ADP14間に転
送される信号音が発側加入者に聞こえないようKするた
め、発ADP2では接点6を下側に駆動して発側電話機
1を切離し1〃−プ保持回路7に切替える。ループ保持
回路7は、発側電話機1を切離したとき、LSllの加
入者回路内のループ監視リレーを保持させておくための
ものであり、最も簡易な構成では、リレー保持に必要な
電流を流すのに見合う抵抗のみでも実現できる。Since the ring tone repeats 1 second on and 2 seconds off, when the ring tone receiver 8 detects a break in the ring tone (2 seconds off state), the ring tone is thereafter transferred from the optical ADP 2 to the destination ADP 14. In order to prevent the calling subscriber from hearing the signal tone, the calling ADP 2 drives the contact 6 downward to disconnect the calling telephone 1 and switch to the 1-p hold circuit 7. The loop holding circuit 7 is for holding the loop monitoring relay in the subscriber circuit of the LSll when the calling telephone 1 is disconnected, and in the simplest configuration, it flows the current necessary to hold the relay. This can be achieved with only a resistance commensurate with .
ID1報記憶回路3は、発呼者の電話番号9名前等に相
当するID情報をあらかじめ登録・記憶している回路で
あり、汎用のROM (READONLY MEMOR
Y)等を使用して容易に構成できる。ID情報としては
、発側加入者の識別に閃する情報であれば何でも良いが
、以下の説明では、最も一般的と考えられる場合、つま
りIDが電話番号である場合を例にとって説明する。The ID1 information storage circuit 3 is a circuit in which ID information corresponding to the caller's phone number, name, etc. is registered and stored in advance, and is a general-purpose ROM (READONLY MEMOR) circuit.
It can be easily configured using Y) etc. The ID information may be any information that can be used to identify the calling subscriber, but in the following explanation, we will take as an example the case where the ID is a telephone number, which is considered to be the most common.
発側加入者識別信号(以下ID信号と記す)送出回路冬
は、より情報記憶回路3に記憶されているID情報をシ
リアルのID信号に変換して送出する回路である。前述
のように、呼出音の切れ目で接点6が駆動された後、よ
り信号送出回路舎から着ADP14に向けてID信号を
送出する。具体的なID信号としては、300Hz−3
400H2の音声通話帯域内で伝送できるものであれば
何でも良く、−例としては、PB倍信号押釦ダイヤルに
使用されている信号)、帯域内F8K (FREQ−U
ENCY 5HIFT KEYING)信号等があげら
れる。The originating subscriber identification signal (hereinafter referred to as ID signal) sending circuit is a circuit that converts the ID information stored in the information storage circuit 3 into a serial ID signal and sends it out. As described above, after the contact 6 is driven at the end of the ringing tone, the ID signal is sent from the signal sending circuit to the destination ADP 14. The specific ID signal is 300Hz-3
Any signal that can be transmitted within the 400H2 voice communication band is acceptable; for example, the signal used for PB double signal pushbutton dialing), F8K within the band (FREQ-U
ENCY 5HIFT KEYING) signals, etc.
発大DP2では、より信号を送出し終ると、接点δを復
旧させ、発側電話機1を再び接続する。When the sending signal DP2 has finished sending out the signal, the contact δ is restored and the calling telephone 1 is reconnected.
ID信号1回の送出に要する時間は、たとえば電話番号
10桁をFB傷信号送出するとしても1秒もあれば十分
であるから、接点5が駆動されている時間は呼出音の切
れ目の時間(2秒)よりも十分短く、シたがって発側加
入者には、通常の場合の呼出音に比べて違和感は感じら
れない。発ADP2では、このようにして呼出音の切れ
日毎にID信号を送出する動作を繰り返す0
発大DP2から送出されたID信号は、着人DPI3に
転送されてID信号受信器18で受信され、ID情報と
してプロセッサ21に転送される。The time required to send one ID signal is, for example, 1 second, even if a 10-digit telephone number is sent as an FB signal, so the time that contact 5 is activated is the time between the end of the ringer ( 2 seconds), so the calling subscriber does not feel any discomfort compared to the normal ring tone. In this way, the originating ADP 2 repeats the operation of transmitting the ID signal every time the ring tone ends. It is transferred to the processor 21 as ID information.
メモリ22には、着側加入者があらかじめ登録しておい
た、着信を許容する相手のID情報(電話番号)が記憶
されている。プロセッサ21は、より信号受信器18か
ら転送されてきたID情報と、メモリ22に記憶されて
いるID情報とを比較し、両者が一致していれば酒仙加
入者が許容する相手からの着信とみなし、接点23を下
側に駆動して呼出信号送出回路24より呼出信号を送出
、し、着側電話機26のベルを鳴動させる。着側加入者
がオフフックして応答すると、加入者応答検出回路25
でこれを検出して接点23を復1日させ、すなわち着側
加入者線13に双方向のループ(通常の着信応答と同じ
゛ル−プ)を作ると同時に、呼出音送出囲路lδの動作
を停止させる。The memory 22 stores ID information (telephone numbers) of parties to whom incoming calls are permitted, which have been registered in advance by the receiving subscriber. The processor 21 compares the ID information transferred from the signal receiver 18 with the ID information stored in the memory 22, and if the two match, the processor 21 determines that the call is from a party acceptable to the Sakesen subscriber. If not, the contact 23 is driven downward to send out a calling signal from the calling signal sending circuit 24, and the bell of the called telephone 26 rings. When the called subscriber responds by going off-hook, the subscriber response detection circuit 25
detects this and turns on the contact 23, that is, creates a two-way loop (the same loop as for normal incoming call response) in the subscriber line 13 on the destination side, and at the same time closes the ringing tone sending circuit lδ. Stop the operation.
着側加入者線13にループが作られると、第2図−(5
) 、 (6)IC示すように1発側加入者線9は極性
が反転してLlが一48Vに、L2が十地気となって課
金が開始され、また同時に発側電話機lと着側電話機2
6との間で通話が可能となる。When a loop is created in the destination subscriber line 13,
), (6) As shown in the IC, the polarity of the first subscriber line 9 is reversed, Ll becomes -48V, L2 becomes 100V, and billing starts, and at the same time, the originating telephone 1 and the terminating telephone telephone 2
It is now possible to talk to and from 6.
着側加入者が応答する前忙発側加入者が途中放棄(オン
フック)した場合には、発ADP2のループ検出回路6
でループ断となったことを検出して)それまで呼出音の
切れ日毎に3秒周期でID信号を送出していたID信号
送出回路会の動作を停止させる。着ADP14では、よ
り信号受信器18がID信号を周期的に受信しなくなっ
たことを検出すると、接点23を復旧させて着側電話機
26のベル鳴動を停止させるとともに、呼出前送tI!
I@路15の動作も停止させる。If the busy originating subscriber abandons (on-hook) before the terminating subscriber responds, the loop detection circuit 6 of the originating ADP 2
(detecting that the loop has been broken) stops the operation of the ID signal sending circuitry, which had been sending out an ID signal at a cycle of 3 seconds every time the ringer cut off. When the terminating ADP 14 detects that the signal receiver 18 no longer periodically receives the ID signal, it restores the contact 23 to stop the ringing of the terminating telephone 26, and sends a pre-call tI!
The operation of I@path 15 is also stopped.
ID信号受信器18から転送されてきたID情報とメモ
リ22に記憶されているID情報が一致しない場合には
、着側加入者が許容しない相手からの着信とみなし、ビ
ジートーン送出回路20を動作させて、発側電話機1に
ビジートーンを送出し、着側電話機26のベルは鳴動さ
せない。なお、着信を許容しない場合のビジートーンは
、場合によっては音声ガイダンス等により、たとえば「
この加入者には電話をかけることができません」等のメ
ツセージを送出する方式であっても良い。If the ID information transferred from the ID signal receiver 18 and the ID information stored in the memory 22 do not match, it is assumed that the call has arrived from a party that is not permitted by the subscriber on the called side, and the busy tone sending circuit 20 is activated. Then, a busy tone is sent to the calling side telephone 1, and the bell of the called side telephone 26 does not ring. In addition, if the incoming call is not allowed, the busy tone may be given by voice guidance, etc., for example, "
It may also be possible to send a message such as "You cannot make a call to this subscriber."
以上説明した一連の制御動作は、プロセッサ21をソフ
トウェア制御することにより、容易に実現できる。The series of control operations described above can be easily realized by controlling the processor 21 by software.
なお、第1図では、発側電話機1に発ADP2のみを接
続し、着側電話機26に着ADP14のみを接続してい
るが、実際には、どの電話機にも発ADP2と着ADP
14を含めた回路が接続されており、例えば発ADP2
と着ADP14の直列回路が接続されている。そして、
その電話機が発側になったとき発ADP2が有効となり
、着側になったとき着ADP 14が有効となるように
する。発ADP2と着ADP14の直列回路において、
プロセッサ21は、ID信号送出回路舎、呼出音送出回
路15、ビジートーン送出回路20、接点5,23を制
御する。すなわち、着ADP14のプロセッサ21は、
発ADP2の回路も制御する。そして、ループ検出回路
6、呼出音受信器8、着信検出回路16、ID信号受信
器18、反転検出回路19および加入者応答検出回路2
5は、それぞれプロセッサ21に対して信号を送出する
。In FIG. 1, only the originating ADP 2 is connected to the originating telephone 1, and only the terminating ADP 14 is connected to the terminating telephone 26, but in reality, every telephone has the originating ADP 2 and the terminating ADP 14 connected.
14 are connected, for example, the output ADP2
A series circuit of the destination ADP 14 and the destination ADP 14 are connected. and,
When the telephone becomes the originating party, the originating ADP 2 becomes effective, and when the telephone becomes the terminating party, the terminating ADP 14 becomes effective. In the series circuit of the originating ADP2 and the destination ADP14,
The processor 21 controls the ID signal sending circuit, the ringing tone sending circuit 15, the busy tone sending circuit 20, and the contacts 5 and 23. That is, the processor 21 of the destination ADP 14:
It also controls the circuit of the source ADP2. The loop detection circuit 6, the ringer receiver 8, the incoming call detection circuit 16, the ID signal receiver 18, the inversion detection circuit 19, and the subscriber response detection circuit 2
5 sends a signal to the processor 21, respectively.
したがって、プロセッサ21に無関係の回路は、ID情
報記憶回路3、ループ保持回路7、および無課金応答回
路17のみである。Therefore, the only circuits unrelated to the processor 21 are the ID information storage circuit 3, the loop holding circuit 7, and the non-charging response circuit 17.
以上説明したように、本発明によれば、既存電話網の、
サービスを希望する加入者の加入者端子対応に付加装置
を設置することにより、着側加入者の希望する相手から
の着信のみを許容することができるようになるため、こ
れまで発側優先であった電話サービスに対し、早期に、
また大規模な網の改造を行うことなしに着側に選択権の
あるサービスを提供することが可能となる。したがって
、冒頭に述べた脅迫や嫌がらせの手段として電話が使用
されるのを防止するのに顕著な効果が期待される。また
、本発明をたとえば特定企業内の電話機に適用すること
により、公衆電話網を使用して一種の閉域通信網を構成
することも可能となる。As explained above, according to the present invention, the existing telephone network
By installing an additional device in response to the subscriber terminal of the subscriber who desires the service, it becomes possible to accept calls only from the party desired by the subscriber on the called side, which has previously been done by giving priority to the calling party. early on for telephone services
Furthermore, it becomes possible to provide services that the receiving party has the right to choose from without having to make large-scale network modifications. Therefore, a significant effect is expected in preventing the telephone from being used as a means of intimidation and harassment as mentioned at the beginning. Further, by applying the present invention to, for example, a telephone set within a specific company, it becomes possible to construct a kind of closed communication network using the public telephone network.
第1図は本発明の実施例を示す電話交換網のブロック図
、第2図は加入者線交換機の接続動作を示す図、第3図
はループ検出回路の実施例図、第4図は無課金応答回路
の実施例図である。
1:発側電話機、2:発側付加装置(発ADP)、3:
ID情報記憶回路、4:ID信号送出回路、5:接点a
16:ループ検出回路、7:ループ保持回路、8:呼出
音受信器、9:発側加入者線、10:発側加入者端子、
11:加入者線交換機(LS)、12:着側加入者端子
、13二着側加入者線、14二着側付加装置(着ADP
)、15:呼出音送出回路、16:着信検出回路、17
:無課金応答回路、18 : ID信号受信器、19;
反転検出回路、20:ビジートーン送出回路、21:プ
ロセッサ、22:メモリ、23:接点b%24:呼出信
号送出回路、25:加入者応答検出回路、26二着信電
話機、27:発光ダイオード、28:発光ダイオード、
29,30 :フオトトランジスタ、31.32ニアオ
ドカツプラ、33:ダイオード、34:抵抗。Fig. 1 is a block diagram of a telephone switching network showing an embodiment of the present invention, Fig. 2 is a diagram showing the connection operation of a subscriber line exchange, Fig. 3 is a diagram of an embodiment of a loop detection circuit, and Fig. 4 is an It is an example figure of a billing response circuit. 1: Calling side telephone, 2: Calling side additional device (calling ADP), 3:
ID information storage circuit, 4: ID signal sending circuit, 5: contact a
16: Loop detection circuit, 7: Loop holding circuit, 8: Ringing receiver, 9: Originating subscriber line, 10: Originating subscriber terminal,
11: Subscriber line switch (LS), 12: Terminating side subscriber terminal, 13 Second terminating side subscriber line, 14 Second terminating side additional equipment (terminating ADP
), 15: Ringing tone sending circuit, 16: Incoming call detection circuit, 17
: non-charging response circuit, 18 : ID signal receiver, 19;
Reversal detection circuit, 20: Busy tone transmission circuit, 21: Processor, 22: Memory, 23: Contact point b% 24: Ringing signal transmission circuit, 25: Subscriber response detection circuit, 26 Two incoming telephones, 27: Light emitting diode, 28: light emitting diode,
29, 30: Phototransistor, 31.32 near-odd coupler, 33: Diode, 34: Resistor.
Claims (1)
する手段と、該登録された識別情報を着側に転送する手
段を備えた発側付加装置、および着信検出手段、無課金
応答手段、上記識別情報を受信する手段、着信を許容す
る加入者識別情報を登録し、該情報と転送された加入者
識別情報とを照合する手段を備えた着側付加装置を、交
換機の加入者端子対応に設け、着信時の通話開始前に1
着側付加装置で無課金応答することにより、発側加入者
の発側付加装置と着側加入者の着側付加装置間に通話路
を設定して、該発側付加装置から転送された識別情報と
着側に登録された識別情報とを照合し、両者が一致した
ときのみ、着側端末に呼出し信号を送出することを特徴
とする限定着信方式。In front of the subscriber's /F5, a calling side additional device comprising means for registering subscriber identification information such as a telephone number, means for transferring the registered identification information to the called side, an incoming call detection means, and a non-charging response. A receiving side additional device, which is equipped with means for receiving the above-mentioned identification information, means for registering subscriber identification information that allows incoming calls, and comparing the information with the transferred subscriber identification information, is connected to the subscriber of the exchange. It is provided for terminals, and 1 is set before starting a call when an incoming call is received.
By responding without charge at the terminating side additional equipment, a communication path is established between the originating side additional equipment of the originating side subscriber and the terminating side additional equipment of the terminating side subscriber, and the identification transferred from the originating side additional equipment is established. A limited call reception method that compares the information with identification information registered on the called side, and only when the two match, sends a paging signal to the called side terminal.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP321984A JPS60146563A (en) | 1984-01-10 | 1984-01-10 | Limited incoming system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP321984A JPS60146563A (en) | 1984-01-10 | 1984-01-10 | Limited incoming system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS60146563A true JPS60146563A (en) | 1985-08-02 |
Family
ID=11551325
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP321984A Pending JPS60146563A (en) | 1984-01-10 | 1984-01-10 | Limited incoming system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS60146563A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04156096A (en) * | 1990-10-19 | 1992-05-28 | Canon Inc | Private branch exchange |
EP0494525A2 (en) * | 1991-01-11 | 1992-07-15 | Nokia Mobile Phones (U.K.) Limited | Telephone apparatus with calling line identification |
WO2010029692A1 (en) | 2008-09-09 | 2010-03-18 | パナソニック株式会社 | Communication terminal, incoming communication notification method, and program |
-
1984
- 1984-01-10 JP JP321984A patent/JPS60146563A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04156096A (en) * | 1990-10-19 | 1992-05-28 | Canon Inc | Private branch exchange |
EP0494525A2 (en) * | 1991-01-11 | 1992-07-15 | Nokia Mobile Phones (U.K.) Limited | Telephone apparatus with calling line identification |
WO2010029692A1 (en) | 2008-09-09 | 2010-03-18 | パナソニック株式会社 | Communication terminal, incoming communication notification method, and program |
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