JPH03172059A - Telephone set for multiple dwelling house - Google Patents
Telephone set for multiple dwelling houseInfo
- Publication number
- JPH03172059A JPH03172059A JP31186189A JP31186189A JPH03172059A JP H03172059 A JPH03172059 A JP H03172059A JP 31186189 A JP31186189 A JP 31186189A JP 31186189 A JP31186189 A JP 31186189A JP H03172059 A JPH03172059 A JP H03172059A
- Authority
- JP
- Japan
- Prior art keywords
- call
- telephone
- extension
- house
- switch
- 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
- 238000010586 diagram Methods 0.000 description 2
- 102100036464 Activated RNA polymerase II transcriptional coactivator p15 Human genes 0.000 description 1
- 108010008885 Cellulose 1,4-beta-Cellobiosidase Proteins 0.000 description 1
- 101000713904 Homo sapiens Activated RNA polymerase II transcriptional coactivator p15 Proteins 0.000 description 1
- 229910004444 SUB1 Inorganic materials 0.000 description 1
- 229910004438 SUB2 Inorganic materials 0.000 description 1
- 101100311330 Schizosaccharomyces pombe (strain 972 / ATCC 24843) uap56 gene Proteins 0.000 description 1
- 101150084500 cel2 gene Proteins 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 101150018444 sub2 gene Proteins 0.000 description 1
Landscapes
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野コ
本発明は集合住宅用電話機に係わり、特に公衆通信網並
びに管理人室機、集合玄関機等を収容した構内交換機に
アクセスできる集合住宅用電話機に関する．
［従来技術コ
従来の集合住宅用電話機ＴＥｎ（ｎは１１、１２・・・
）は第２図に示すようにダイヤル信号送出？路２、通話
回路３、ダイヤラ−５、テンキー６を設けた電話機部１
と、送受器４とからなる。前記電話機部１は切換スイッ
チ２ｌの一方の接点を介して端子Ｔ■、に接続される。[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a telephone set for a residential complex, and particularly to a telephone set for a residential complex that can access a private branch exchange that accommodates a public communication network, a manager's room unit, a collective entrance unit, etc. Regarding. [Prior art] Conventional telephone set for apartment complexes TEn (n is 11, 12...
) is the dial signal sent out as shown in Figure 2? telephone section 1 equipped with a telephone line 2, a telephone circuit 3, a dialer 5, and a numeric keypad 6;
and a handset 4. The telephone section 1 is connected to a terminal T2 through one contact of a changeover switch 2l.
また他方の接点から集合住宅用インタフェイス回路２２
を介して端子Ｔ１■に接続される。前記切換スイッチ２
１はＣＰＵ２３によって制御される。また前記端子Ｔ１
１は加入者ＭＳＵＢを介して公衆通信網ＬＳへ接続され
る。また前記端子Ｔ１２は集合住宅用アダプタＡＤ■、
を介して集合住宅用制御装置２４へ接続される。集合住
宅用制御装置２４は同様に集合住宅用アダプタＡＤ■２
・・・・を介して他の集合住宅用電話機Ｔｉ２・・・・
及び管理人室機ｃＵｏと集合玄関機ＣＵ，２が接続され
る。Also, from the other contact point, the interface circuit for apartment complex 22
It is connected to terminal T1■ via. Said changeover switch 2
1 is controlled by the CPU 23. In addition, the terminal T1
1 is connected to the public communications network LS via subscriber MSUB. Moreover, the terminal T12 is an adapter for apartment complex AD■,
It is connected to the apartment complex control device 24 via. Similarly, the control device 24 for apartment complexes is connected to adapter AD■2 for apartment complexes.
... via other apartment complex telephone Ti2...
And the manager's room unit cUo and the collective entrance unit CU, 2 are connected.
［発明が解決しようとする課題］
上記構威の集合住宅用電話機ＴＥ、，、ＴＥ，２・・・
を用いて集合住宅用電話システムを構築するには集合住
宅用アダプタＡＤ．．ＡＤ２・・・・と電話機部１との
間のインタフェイスを一致させるため、集合住宅用イン
タフェイス回路２２をそれぞれの集？住宅用電話機ＴＥ
■１、ＴＥ■２・・・・に設けなければならない難点が
あり、かつ、集合住宅用制御装置２４には集合住宅用電
話機ＴＥ１，、ＴＥ■２・・・・相互を接続する交換機
能がないので集合住宅用電話機’Ｉ’ Ｅ ， ，とＴ
Ｅ．２との通話はイ１料の公衆通話網を使用しなければ
ならない等の難点がある。[Problem to be solved by the invention] Telephones for apartment complexes with the above configuration TE, TE, 2...
To build a telephone system for an apartment complex using the AD. ．． In order to match the interface between the AD2... and the telephone unit 1, the interface circuit 22 for apartment complexes is connected to each group. Residential telephone TE
■1, TE■2, etc. have to be provided, and the apartment complex control device 24 has an exchange function to connect the apartment complex telephones TE1, TE■2... Since there is no telephone for apartment complexes, 'I' E, , and T
E. There are some drawbacks, such as having to use the public telephone network for a fee of 1 to make calls to 2.
［発明の目的コ
本発明は上述した難点に鑑みなされたもので集合住宅用
制御装置として構内交換機を使用し公衆通信網と同一の
インタフェイスを有する管理人室機、集合玄関機及び集
合住宅用電話機を前記構内交換機に収容することにより
、集合住宅用電話機の回路を簡略化し、集合住宅用電話
機相互の通話を構内交換機を介して実現できる集合住宅
用電話機を提供することを目的とする。[Object of the Invention] The present invention has been made in view of the above-mentioned difficulties, and provides a manager's room unit, a collective entrance unit, and a collective entrance unit for collective housing that uses a private branch exchange as a control device for collective housing and has the same interface as the public communication network. The purpose of the present invention is to provide a telephone set for an apartment complex that can simplify the circuitry of the telephone set for the apartment complex and realize calls between the telephones for the apartment complex via the private branch exchange by housing the telephone in the private branch exchange.
［課題を解決するための手段コ
以」二の目的を達或するため本発明による集合住宅用電
話機は，公衆通｛Ｗ網に接続された通話手段と、通話手
段を公衆通信網から管理人室機、集合玄関機および集合
住宅用電話機が収容された構内？換機へ切換える公衆通
信網／構内交換機切換手段で構成する。[Means for Solving the Problems] In order to achieve the second object, the telephone set for apartment complexes according to the present invention has a communication means connected to a public telecommunications network (W network) and a communication means connected to a public telecommunications network by an administrator. A premises where room units, collective entrance units, and telephones for collective housing are housed? It consists of a public communication network/private branch exchange switching means for switching to a switching machine.
［実施例］
本発明による集合住宅用電話機の一実施例を第１図に従
って詳述する。[Embodiment] An embodiment of the telephone for apartment complexes according to the present invention will be described in detail with reference to FIG.
第１図に示す集合住宅用電話機ＴＥｎ（ｎは１，２・・
・・）は端子Ｔ■に公衆通信網ＬＳの加入者線ＳＵＢ１
、ＳＵＢ２・・・・が接続され．端子Ｔ２は構内交換Ｖ
＆ＰＢＸの内線ＣＥＬ１、ＣＥＬ２・・・・が接続され
る。Telephone TEn for apartment complexes shown in Fig. 1 (n is 1, 2, etc.)
) is the subscriber line SUB1 of the public communication network LS at terminal T■.
, SUB2... are connected. Terminal T2 is internal exchange V
&PBX extensions CEL1, CEL2, etc. are connected.
構内交換機ＰＢＸには集合機器ＣＵｎ（ｎ＝０が管理人
室機、ｎ＝１〜３が集合玄関機、ｎ＝４〜６がオートド
ア）が収容され、局線トランクＴＲＫを介して公衆通信
網ＬＳとの間で外線通話ができる。The private branch exchange PBX accommodates collective equipment CUn (n=0 is the manager's room machine, n=1 to 3 are the collective entrance machines, and n=4 to 6 are the automatic doors), and is connected to the public communication network via the central office line trunk TRK. You can make outside calls with the LS.
集合住宅用電話機ＴＥエにはダイヤル信号送出器２、通
話回路３、ダイヤラー５、テンキー６を設けた電話機部
１及び送受器４を設ける。A telephone set TE for an apartment complex is provided with a telephone unit 1 having a dial signal transmitter 2, a communication circuit 3, a dialer 5, a numeric keypad 6, and a handset 4.
また５外線通信系には，外線保留回路９，外線リンガ１
０を設け、加入者線ＳＵＢエが接続された端子Ｔ、と外
線保留回路９並びに外線リンガ１０と接続し，公衆通信
網ＬＳから呼出音が送出されると外線リンガ１０が動作
してＣＰＵ１９に外線からの着呼が有ったことを知らせ
、必要な場合はＣＰＵＩ ９の制御により外線保留回路
９を動作させ外線を保留する。また、内線切換スイッチ
７の常閉側は端子Ｔ１と常開側は住戸玄関スイッチ８の
切換接点と接続され、内線切換スイッチ７の切換接点は
電話機部１のダイヤル信号送出回路２の入側と接続する
。In addition, the 5 outside line communication system includes an outside line holding circuit 9 and an outside line ringer 1.
0 is provided, and the terminal T to which the subscriber line SUB-E is connected is connected to the outside line hold circuit 9 and the outside line ringer 10, and when a ring tone is sent from the public communication network LS, the outside line ringer 10 operates and the CPU 19 Notification is made that there is an incoming call from an outside line, and if necessary, the outside line holding circuit 9 is operated under the control of the CPU 9 to hold the outside line. Further, the normally closed side of the extension changeover switch 7 is connected to the terminal T1, and the normally open side is connected to the changeover contact of the entrance switch 8, and the changeover contact of the extension changeover switch 7 is connected to the input side of the dial signal sending circuit 2 of the telephone unit 1. Connecting.
内線通話系には内線リンガ１１．自動ダイヤル信号送出
器１２が設けられ，内線ＣＥＬ，が接続された端子Ｔ２
と内線リンガ１１並びに自動ダイヤル信号退出器１２を
接続し，構内交換機ＰＢＸから呼出音が送出されると，
内線リンガ１１が動作してＣＰＵｌ９に内線からの着呼
が有ったことを知らせる。また、住戸玄関スイッチ８の
常閉側は端子Ｔ２、常開側は住戸ドアホンインタフェイ
ス１５、端子Ｔ，を経由して住戸ドアホンＬ６と接続さ
れる。また，居室に設けた非常通報センサＳエ、ガス漏
れ警報センサＳ２、火災警報センサＳ，，戸締警報セン
サＳ４が接続されたセキュリティ装置１７からのセキュ
リティデータは端子Ｔ４を介してＣＰＵ１９へ送出され
、ＣＰＵ１９では自動ダイヤル信号送出器１２から構内
交換機ＰＢＸヘセキュリティデータに対応したダイヤル
信号を送出する。構内交換機ＰＢＸは入力されたダイヤ
ル信号によりディスプレイＤＩＳを設けた管理人室機Ｃ
Ｕ０を呼出し、管理人室機ＣＵ，のディスプレイＤＩＳ
にセキュリティデータを表示する。Extension ringer 11. A terminal T2 is provided with an automatic dialing signal transmitter 12 and connected to an extension CEL.
When the extension ringer 11 and automatic dial signal exit device 12 are connected, and a ring tone is sent from the private branch exchange PBX,
The extension ringer 11 operates and notifies the CPU 19 that there is an incoming call from the extension. The normally closed side of the entrance switch 8 is connected to the terminal T2, and the normally open side is connected to the door phone L6 via the door phone interface 15 and the terminal T. In addition, security data from the security device 17 to which the emergency notification sensor SE, gas leak alarm sensor S2, fire alarm sensor S, and door lock alarm sensor S4 installed in the living room are connected is sent to the CPU 19 via the terminal T4. , the CPU 19 sends a dial signal corresponding to the security data from the automatic dial signal sender 12 to the private branch exchange PBX. The private branch exchange PBX uses the input dial signal to send the manager's room unit C equipped with a display DIS.
Call U0 and display DIS on manager's room unit CU.
to display security data.
内線スイッチ７および住戸玄関スイッチ８はＣＰＵＩ９
の制御により動作し、外線通話、内線通話及び住戸ドア
ホン通話を行なうことができる。Extension switch 7 and residence entrance switch 8 are CPUI9
It operates under the control of , and can make outside line calls, internal calls, and residential door phone calls.
オフフック＋テンキー６の操作では内線スイッチ７と住
戸玄関スイッチ８は共に動作せず外線通話ができる．ま
た、ファンクション釦ＦＫｎ（ｎ＝１は内線釦、ｎ＝２
は住戸釦，ｎ＝３は管理人釦）を併用して、オフフック
＋内線釦ＦＫ，＋テンキー６の操作では内線スイッチ７
が動作し、内線通話ができる．
オフフック＋住戸釦ＦＫ，では内線スイッチ７と住戸玄
関スイソチ８が共に動作し住戸ドアホン通話ができる。If you operate off-hook and use the numeric keypad 6, both the extension switch 7 and the doorway switch 8 will not operate, allowing you to make an outside call. In addition, function button FKn (n = 1 is the extension button, n = 2
(dwelling unit button, n=3 is manager button), off-hook + extension button FK, + extension switch 7 when using numeric keypad 6
works, and you can make internal calls. In the case of off-hook + dwelling unit button FK, the extension switch 7 and the dwelling unit entrance switch 8 operate together, allowing a dwelling unit doorphone call.
管理人釦ＦＫ，を押すと内線スイッチ７が動作し、管理
人室機ＣＵ，へのダイヤルは自動ダイヤル信号送出器１
２から構内交換機ＰＢＸへ送出される。この場合、通話
用増幅器１４とスピーカ１４ａによるスピーカ通話がで
きるほか、通常のオフフックで送受器４による通話もで
きる。When the manager button FK is pressed, the extension switch 7 is activated, and automatic dial signal transmitter 1 is used to dial the manager room unit CU.
2 to the private branch exchange PBX. In this case, in addition to being able to make a speaker call using the telephone amplifier 14 and the speaker 14a, it is also possible to make a call using the handset 4 in a normal off-hook state.
なお、着信呼における内線スイッチ７と住戸玄関スイソ
チ８の動作は発信呼と同じである。The operations of the extension switch 7 and the door switch 8 for an incoming call are the same as for an outgoing call.
［発明の作用コ
上記構戊の集合住宅用電話機ＴＥ、で、オフフックして
からテンキー６でダイヤルすると、液晶表示器１３でダ
イヤルした電話番号が表示され，外線通話ができる。外
線着信では外線リンガ１０が動作し，オフフックすれば
外線着４ｍに応答できる。発，着信共オフフックのまま
、ファンクション釦ＦＫｎを押せば管理人室機ＣＵ，と
の間の内線通話，住戸ドアホン１６との間の住戸ドアホ
ン通？ができ、ＣＰＵ１９の制御により外線保留回路９
が動作して外線を保留する。保留した外線通話に復帰し
たいときは、該当するファンクション釦ＦＫｎを再度押
下する。ファンクション釦ＦＫｎを再度押下すると外線
保留回路９が復旧し通常の外線通話ができる。[Operation of the Invention] When dialing with the ten-key pad 6 after going off-hook with the telephone TE for apartment complexes having the above structure, the dialed telephone number is displayed on the liquid crystal display 13, and an outside call can be made. When an outside line call is received, the outside line ringer 10 operates, and if you go off-hook, you can answer the outside line ringer 4m. If you press the function button FKn while both making and receiving calls are off-hook, you can make an internal call with the manager's room unit CU, or make a call with the house door phone 16. The outside call hold circuit 9 is activated under the control of the CPU 19.
works and puts the outside line on hold. If the user wishes to return to the held external call, the user presses the corresponding function button FKn again. When the function button FKn is pressed again, the outside line hold circuit 9 is restored and normal outside line calls can be made.
集合住宅用電話機ＴＥ，でオンフックしてから内線釦Ｆ
Ｋ■を押下し、集合住宅用電話機ＴＥ，の内線番号をダ
イヤルすると内線スイッチ７が動作し構内交換機ＰＢＸ
へダイヤラー５から前記内線番号が送出される。このと
き，構内交換機ＰＢＸに３者会議等の内線サービス機能
が付与されているときは、他の集合住宅用電話機ＴＥ．
と３者会議通話ができる。Go on-hook with the apartment phone TE, then press extension button F.
When you press K■ and dial the extension number of the apartment building telephone TE, the extension switch 7 will operate and the private branch exchange PBX will be activated.
The extension number is sent from dialer 5 to. At this time, if the private branch exchange PBX is provided with an extension service function such as three-party conference, other apartment complex telephones TE.
You can make a three-way conference call.
集合玄関機ＣＵエに設けたテンキーで前記内線番号を押
すと集合住宅用電話機ＴＥ２を呼び出すことができる。By pressing the extension number on the numeric keypad provided on the collective entrance unit CUE, the collective housing telephone TE2 can be called.
集合玄関機ＣＵエと集合住宅用電話機ＴＥ２の内線通話
を行こないながらテンキー６を操作するとオートドアＣ
Ｕ４が開扉される。If you operate the numeric keypad 6 while not making an extension call between the collective entrance unit CUE and the collective housing telephone TE2, the auto door C will open.
The door of U4 is opened.
構内交換機ＰＢＸにメイルボックス等が設けてある場合
は、外線又は内線から特定番号（外線の場合はメイルボ
ックス相当のダイヤルをした後で）を送出すれば「メイ
ルボックスに接続されたのでお話し下さい」等の通知が
発信側へ送出され、伝言を特定番号相当のボックスへ記
憶する。集合住宅用電話機ＴＥ２でオフフックしてから
、内線釦ＦＫ，を押下し，テンキー６で前記特定番号を
ダイヤルすると閉成されさ内線スイソチ７を介してメイ
ルボックスが選択され、前記特定番号に該当するメイル
ボノクスの伝言を聴くことができる。If the private branch exchange PBX is equipped with a mailbox, etc., if you send a specific number from an outside line or extension (in the case of an outside line, after dialing the equivalent of the mailbox), you will receive a message that says, ``You are connected to the mailbox, so please talk to me.'' etc. is sent to the calling party, and the message is stored in the box corresponding to the specific number. After going off-hook on the apartment building telephone TE2, press the extension button FK, and dial the specific number using the numeric keypad 6, the mailbox will be closed via the extension switch 7, and the mailbox corresponding to the specific number will be selected. You can listen to Mailbonox's message.
構内交換機ＰＢＸに不在転送サービス機能があれば集合
住宅用電話機ＴＥ２への着信は管理人室機ＣＵ０へ転送
される。If the private branch exchange PBX has a call forwarding service function, incoming calls to the apartment building telephone TE2 are forwarded to the manager's room unit CU0.
ガス漏れ警報センサＳエがガス漏れを検知するとセキュ
リティ装置１７からＣＰＵ１９ヘガス漏れデータが送出
され自動ダイヤル信号送出器１２から管理人室機ＣＵｏ
の内線番号が構内交換機ＰＢＸへ送出されるので、管理
人室機ＣＵ，と集合住宅用電話機１゛Ｅ２が接続され発
信元の内線番号とガス漏れデータが管理人室機ＣＵｏの
ディスプレイＤＩＳに表示され管理人は直ちにガス漏れ
警報に対処できる。When the gas leak alarm sensor SE detects a gas leak, gas leak data is sent from the security device 17 to the CPU 19, and from the automatic dial signal transmitter 12 to the manager's room unit CUo.
The extension number of the caller is sent to the private branch exchange PBX, so the manager's room unit CU and the apartment complex telephone 1゛E2 are connected, and the caller's extension number and gas leak data are displayed on the display DIS of the manager's room unit CUo. Managers can immediately respond to gas leak alarms.
［発明の効果コ
以上の実施例から明らかなように本発明による集合住宅
用電話機は、公衆通信網に接続された通話手段と，通話
手段を公衆通信網から管理人室機、集合玄関機および集
合住宅用電話機が収容された構内交換機へ切換える公衆
通信網／構内交換機切換手段で構威されているので、集
合住宅用電話システムの端末として用いれば、管理人室
、集合玄関機及び集合住宅用電話機相互の通話を構内交
換機を介して実現できる効果がある。[Effects of the Invention] As is clear from the above-described embodiments, the telephone set for apartment complexes according to the present invention has a communication means connected to a public communication network, and a communication means connected to a public communication network such as a manager's room unit, a collective entrance unit, and Since it is equipped with a public communication network/private branch exchange switching means that switches to the private branch exchange in which the telephone set for the apartment complex is housed, if it is used as a terminal for the telephone system for the apartment complex, it can be used in the manager's room, the entrance machine for the apartment complex, and the telephone system for the apartment complex. This has the effect of allowing calls between telephones to be made via a private branch exchange.
第１図は本発明による集合住宅用電話機のブロック図、
第２図は従来の集合住宅用電話機のブロック図である。
１・・・・・・電話機部（通話手段）
７・・・・・・内線スイッチ（公衆通信網／構内交換機
切換手段）
８・・・・・・住戸玄関スイッチ
ＣＵｏ・・・管理人室機
ＣＵ，〜ＣＵ，・・・・・集合玄関機FIG. 1 is a block diagram of a telephone for apartment complexes according to the present invention;
FIG. 2 is a block diagram of a conventional telephone set for use in apartment complexes. 1...Telephone unit (communication means) 7...Extension switch (public communication network/private branch exchange switching means) 8...Dwelling entrance switch CUo...Manager's room machine CU、〜CU、・・・Collection entrance machine
Claims (1)
電話機において、公衆通信網に接続された通話手段と、
前記通話手段を前記公衆通信網から前記管理人室機、前
記集合玄関機および集合住宅用電話機が収容された構内
交換機へ切換える公衆通信網／構内交換機切換手段とを
備えたことを特徴とする集合住宅用電話機。A telephone for an apartment complex that can make calls to a manager's room unit and a collective entrance unit, a telephone connected to a public communication network;
An assembly characterized by comprising: public communication network/private branch exchange switching means for switching the communication means from the public communication network to a private branch exchange in which the manager's room machine, the collective entrance machine, and the collective housing telephone are accommodated. Residential telephone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1311861A JP2585817B2 (en) | 1989-11-30 | 1989-11-30 | Housing phone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1311861A JP2585817B2 (en) | 1989-11-30 | 1989-11-30 | Housing phone |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03172059A true JPH03172059A (en) | 1991-07-25 |
| JP2585817B2 JP2585817B2 (en) | 1997-02-26 |
Family
ID=18022303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1311861A Expired - Fee Related JP2585817B2 (en) | 1989-11-30 | 1989-11-30 | Housing phone |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2585817B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05153593A (en) * | 1991-11-29 | 1993-06-18 | Aiphone Co Ltd | Home telephone set with television monitor |
| JP2001069253A (en) * | 1999-08-25 | 2001-03-16 | Matsushita Electric Works Ltd | Telephone circuit-intercom switching adapter |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60174598A (en) * | 1984-02-21 | 1985-09-07 | Tamura Electric Works Ltd | Key telephone set |
| JPS6436159A (en) * | 1987-07-30 | 1989-02-07 | Mitsui Constr | Information managing equipment in multiple dwelling house |
-
1989
- 1989-11-30 JP JP1311861A patent/JP2585817B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60174598A (en) * | 1984-02-21 | 1985-09-07 | Tamura Electric Works Ltd | Key telephone set |
| JPS6436159A (en) * | 1987-07-30 | 1989-02-07 | Mitsui Constr | Information managing equipment in multiple dwelling house |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05153593A (en) * | 1991-11-29 | 1993-06-18 | Aiphone Co Ltd | Home telephone set with television monitor |
| JP2001069253A (en) * | 1999-08-25 | 2001-03-16 | Matsushita Electric Works Ltd | Telephone circuit-intercom switching adapter |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2585817B2 (en) | 1997-02-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |