JPS6347390B2 - - Google Patents
Info
- Publication number
- JPS6347390B2 JPS6347390B2 JP57187867A JP18786782A JPS6347390B2 JP S6347390 B2 JPS6347390 B2 JP S6347390B2 JP 57187867 A JP57187867 A JP 57187867A JP 18786782 A JP18786782 A JP 18786782A JP S6347390 B2 JPS6347390 B2 JP S6347390B2
- Authority
- JP
- Japan
- Prior art keywords
- telephone
- telephone line
- call
- generator
- 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.)
- Expired
Links
- 238000001514 detection method Methods 0.000 claims description 22
- 230000008878 coupling Effects 0.000 claims description 13
- 238000010168 coupling process Methods 0.000 claims description 13
- 238000005859 coupling reaction Methods 0.000 claims description 13
- 230000009365 direct transmission Effects 0.000 claims description 5
- 230000004913 activation Effects 0.000 description 3
- 230000003321 amplification Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000003199 nucleic acid amplification method Methods 0.000 description 3
- 230000003111 delayed effect Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
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
- H04M3/54—Arrangements for diverting calls for one subscriber to another predetermined subscriber
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
Description
（産業上の利用分野）
本発明は、電話の転送中に留守であると早合点
されて切られることを防止した着信アナウンス付
電話転送器を提供することを目的としたものであ
る。
（従来技術）
従来公知の特公昭49−13087号公報には、着信
側電話回線に、該着信側電話回線から到来する呼
出信号を検出する着信ベル検出部と、該着信側電
話回線を閉結する着信保持スイツチとを接続し、
発信側電話回線に、該発信側電話回線を閉結する
発信保持スイツチと、転送先電話器の電話番号を
発信する電話番号信号発生器と、前記転送先電話
器のオフフツクを検出する応答検出器と、該応答
検出器の検出により作動し前記転送先電話器に
「転送」と「直送」とを区別しうる信号を送出す
るメツセージトーン発生器とを接続し、前記着信
側電話回線と前記発信側電話回線との間に、両電
話回線を通話可能に接続しうる結合スイツチを設
けた電話転送装置において、前記着信側電話回線
には発呼者に転送電話である旨を報知するアナウ
ンス発生器を接続し、該アナウンス発生器は前記
着信ベル検出部の検出により作動し一定時間経過
すると自動停止する着信アナウンス付電話転送装
置について記載されている。
また、特開昭52−109314号公報には、着信側電
話回線に、該着信側電話回線から到来する呼出信
号を検出する着信ベル検出部と、該着信側電話回
線を閉結する着信保持スイツチとを接続し、発信
側電話回線に、該発信側電話回線を閉結する発信
保持スイツチと、転送先電話器の電話番号を発信
する電話番号信号発生器と、前記転送先電話器の
オフフツクを検出する応答検知器と、該応答検知
器の検出により作動し前記転送先電話器に「転
送」と「直送」とを区別しうる信号を送出するメ
ツセージトーン発生器とを接続し、前記着信側電
話回線と前記発信側電話回線との間に、両電話回
線を通話可能に接続しうる結合スイツチを設けた
電話転送装置について記載されている。
（発明が解決しようとする問題点）
前者のもののアナウンス発生器は、着信ベル検
出部の検出により作動し、その後一定時間経過す
ると自動停止する構成であるから、最初のうち
は、発呼者に対してアナウンスは流れるが、転送
先電話器の応答が遅いと、アナウンスは自動的に
停止することがある。アナウンスが切れると着信
側電話回線は無音状態となるから、発呼者は回線
が切れたものと勘違いして電話を切ることがあつ
た。また、転送先電話器の応答が速くとも、一定
時間経過しなければ転送が完了しなかつた。
また、後者のものはアナウンスを送出しない。
（問題を解決する手段）
よつて、本発明は、着信側電話回線５に、該着
信側電話回線５から到来する呼出信号を検出する
着信ベル検出部１７と、前記着信電話回線５を閉
結する着信保持スイツチ７とを接続し、発信側電
話回線５′に、該発信側電話回線５′を閉結する発
信保持スイツチ８と、転送先電話器の電話番号を
発信する電話番号信号発生器１０と、前記転送先
電話器のオフフツクを検出する応答検知器１１
と、該応答検知器１１の検出により作動し前記転
送先電話器に「転送」と「直送」とを区別しうる
信号を送出するメツセージトーン発生器１２とを
接続し、前記着信側電話回線５と前記発信側電話
回線５′との間に、両電話回線を通話可能に接続
しうる結合スイツチ４を設けた電話転送装置にお
いて、前記着信側電話回線５には発呼者に転送電
話である旨を報知するアナウンス発生器２１を接
続し、該アナウンス発生器２１は前記着信ベル検
出部１７の検出により作動し、前記メツセージト
ーン発生器１２の作動終了により前記アナウンス
発生器２１は停止し、前記結合スイツチ４は閉結
するように構成した着信アナウンス付電話転送装
置としたものである。
（実施例）
本発明の一実施例を図により説明すると、１は
事務所、２は出先事務所、Ａは呼電話器（発呼電
話器のこと）、Ｂは着信電話器（着呼電話器のこ
と）、Ｃは発信電話器、Ｄは転送先電話器、５は
呼電話器Ａから着信電話器Ｂに至る着信側電話回
線、３は着信電話器Ｂと発信電話器Ｃとに接続さ
れた電話転送器、５′は発信電話器Ｃから転送先
電話器Ｄに至る発信側電話回線、４は前記着信側
電話回線５と発信側電話回線５′とを通話可能に
接続する結合スイツチ、１６は発呼者に転送電話
である旨を報知するアナウンスアダプターであ
る。
第２図は前記アナウンスアダプター１６および
本願装置のブロツク回路図であり、６は着信側電
話回線５に接続される端子、１５は発信側電話回
線５′に接続される端子、７は着信側電話回線５
を閉結する着信側保持スイツチ、８は発信側電話
回線５′を閉結する発信側保持スイツチ、１７は
着信側電話回線５から到来する呼出信号を検出す
る着信ベル検出部、１８は着信ベル検出部１７の
検出により前記着信側保持スイツチ７を作動させ
る着信側保持用リレー、１９はアナウンス音声伝
達用トランスであり、一方の巻線側を前記結合ス
イツチ４の開放端に接続する。アナウンス音声伝
達用トランス１９の他方の巻線側にはアナウンス
音声増幅部２０を接続し、該音声増幅部２０に発
呼者に転送電話である旨を報知するアナウンス発
生器２１を接続する。該アナウンス発生器２１は
磁気テープ等により構成する。２３は結合スイツ
チ４を作動させる結合用リレー、２４は転送先電
話器Ｄが応答するとこれを検出する応答検知器、
２５は前記着信ベル検出部１７の検出により作動
し、転送先電話器Ｄの電話番号を送出する電話番
号信号発生器、２６は前記発信側保持スイツチ８
を作動させる発信側電話保持リレー、２７はアナ
ウンス起動信号回路、２８は応答検知器２４の作
動により作動し、前記転送先電話器Ｄに「転送」
と「直送」とを区別しうる信号を送出するメツセ
ージトーン発生器、２２はメツセージトーン発生
器２８の終了を伝達する信号回路である。
（作用）
呼電話器Ａから着信電話器Ｂに電話が掛ると、
該信号を着信ベル検出部１７が検出し、着信側保
持用リレー１８と発信側電話保持リレー２６とを
作動させて、着信側電話回線５の保持スイツチ７
と発信側電話回線５′の保持スイツチ８を閉じ、
両電話回線を閉結する。同時に、アナウンス起動
信号回路２７によりアナウンス発生器２１を起動
させ、
アナウンス音声増幅部２０→アナウンス音声伝達
用トランス１９→結合スイツチ４の開放端→着信
側電話回線５
を介して、発呼者に転送電話である旨を報知し、
発信側電話回線５′側には、電話番号信号発生器
２５を起動させて転送先電話器Ｄの電話番号を送
出する。
転送先電話器Ｄの送受話器が取り上げられる
と、これを応答検知器２４が検知し、転送先電話
器Ｄが転送電話であるか又は直通電話であるかを
区別するために、メツセージトーン発生器２８を
起動させて転送先電話器Ｄに出た人に信号音また
は音声を数秒聞かせ、この電話が転送された電話
であることを告げる。該メツセージは、結合スイ
ツチが開放されているため、発呼者には洩れな
い。
メツセージトーン発生器２８の動作が終ると、
信号回路２２の信号によりアナウンス発生器２１
は停止し、同様に信号回路２２の信号により、結
合用リレー２３が作動し結合スイツチ４が閉じ
て、着信側電話回線５と発信側電話回線５′が通
話可能に接続される。
（効果）
以上のように本発明は、着信側電話回線５に、
該着信側電話回線５から到来する呼出信号を検出
する着信ベル検出部１７と、前記着信側電話回線
５を閉結する着信保持スイツチ７とを接続し、発
信側電話回線５′に、該発信側電話回線５′を閉結
する発信保持スイツチ８と、転送先電話器の電話
番号を発信する電話番号信号発生器２５と、前記
転送先電話器のオフフツクを検出する応答検知器
２４と、該応答検知器２４の検出により作動し前
記転送先電話器に「転送」と「直送」とを区別し
うる信号を送出するメツセージトーン発生器２８
とを接続し、前記着信側電話回線５と前記発信側
電話回線５′との間に、両電話回線を通話可能に
接続しうる結合スイツチ４を設けた電話転送装置
において、前記着信側電話回線５には発呼者に転
送電話である旨を報知するアナウンス発生器２１
を接続し、該アナウンス発生器２１は前記着信ベ
ル検出部１７の検出により作動し、前記メツセー
ジトーン発生器２８の作動終了により前記アナウ
ンス発生器２１は停止し、前記結合スイツチ４は
閉結するように構成した着信アナウンス付電話転
送装置としたため、発呼者に送出されるアナウン
スは、速やかに転送先電話器側が応答したときは
速やかに停止して転送時間が短縮でき、転送先電
話器側の応答が遅延したときは、該応答まで継続
されて、発呼者の勘違いにより電話が切られるこ
とがないという効果を奏する。
(Industrial Field of Application) An object of the present invention is to provide a telephone transfer device with an incoming call announcement that prevents the call from being immediately recognized and disconnected if the caller is absent during the transfer. (Prior art) The conventionally known Japanese Patent Publication No. 49-13087 discloses that a telephone line on the called side is provided with an incoming bell detection unit for detecting a ringing signal coming from the called side telephone line, and a ring detecting section for detecting a ringing signal arriving from the called side telephone line, and a device that closes the called side telephone line. Connect the incoming call hold switch to
A call holding switch for closing the calling side telephone line, a telephone number signal generator for transmitting the telephone number of the forwarding destination telephone, and a response detector for detecting off-hook of the forwarding destination telephone. and a message tone generator that is activated upon detection by the response detector and sends a signal that can distinguish between "forwarding" and "direct transmission" to the forwarding destination telephone, and connecting the telephone line of the called party to the calling party's telephone line. In a telephone transfer device provided with a connecting switch capable of connecting both telephone lines so as to enable communication between the receiving telephone line and the receiving telephone line, an announcement generator is provided on the receiving telephone line to notify the caller that the call is being transferred. A telephone transfer device with an incoming call announcement is described in which the announcement generator is activated by detection by the incoming call detector and automatically stops after a certain period of time has elapsed. Furthermore, Japanese Patent Application Laid-open No. 109314/1983 discloses that a receiving telephone line is equipped with an incoming bell detection unit that detects a ringing signal arriving from the receiving telephone line, and a call hold switch that closes the receiving telephone line. and a call hold switch that closes the calling side telephone line, a telephone number signal generator that sends the telephone number of the forwarding destination telephone, and an off-hook of the forwarding destination telephone. A response detector for detecting the call and a message tone generator that is activated by the detection of the response detector and sends a signal capable of distinguishing between "transfer" and "direct transmission" to the transfer destination telephone are connected, and the receiver A telephone transfer device is described in which a coupling switch is provided between a telephone line and the caller's telephone line to enable communication between the two telephone lines. (Problem to be Solved by the Invention) The former type of announcement generator is configured to operate upon detection by the incoming bell detector and then automatically stop after a certain period of time has elapsed. An announcement will be played in response, but if the response of the transfer destination phone is slow, the announcement may stop automatically. When the announcement was cut off, the called party's telephone line went silent, so the caller sometimes mistakenly thought the line had been disconnected and hung up. Furthermore, even if the transfer destination telephone responded quickly, the transfer was not completed until a certain period of time elapsed. Also, the latter does not send out announcements. (Means for Solving the Problem) Therefore, the present invention provides an incoming call detection section 17 for detecting a ringing signal arriving from the incoming telephone line 5, and a device that connects the incoming telephone line 5 to the incoming telephone line 5. A call hold switch 8 connects the call hold switch 7 to the call hold switch 7 and closes the call call line 5' to the call call line 5', and a phone number signal generator that sends the phone number of the forwarding destination phone. 10, and a response detector 11 for detecting off-hook of the transfer destination telephone.
and a message tone generator 12 which is activated upon detection by the response detector 11 and sends a signal that can distinguish between "transfer" and "direct transmission" to the transfer destination telephone, In the telephone transfer device, a connection switch 4 is provided between the telephone line 5' of the calling party and the telephone line 5' of the calling party, and the telephone line 5 of the receiving party is provided with a connection switch 4 which connects both telephone lines so that the telephone line 5' is connected to the calling party. An announcement generator 21 is connected to notify the incoming call, and the announcement generator 21 is activated upon detection by the incoming call detection section 17. When the message tone generator 12 finishes operating, the announcement generator 21 is stopped, and the The coupling switch 4 is a telephone transfer device with an incoming call announcement configured to be closed. (Embodiment) An embodiment of the present invention will be described with reference to the drawings. 1 is an office, 2 is a branch office, A is a calling telephone (calling telephone), and B is a receiving telephone (calling telephone). C is the originating telephone, D is the forwarding telephone, 5 is the receiving telephone line from calling telephone A to receiving telephone B, and 3 is connected to receiving telephone B and originating telephone C. 5' is a calling side telephone line extending from the calling phone C to the transfer destination phone D, and 4 is a coupling switch that connects the called phone line 5 and the calling side telephone line 5' to enable communication. , 16 is an announcement adapter that notifies the caller that the call is a forwarded call. FIG. 2 is a block circuit diagram of the announcement adapter 16 and the device of the present invention, in which 6 is a terminal connected to the telephone line 5 on the receiving side, 15 is a terminal connected to the telephone line 5' on the calling side, and 7 is a terminal connected to the telephone line 5' on the receiving side. line 5
8 is a calling side holding switch that closes the calling side telephone line 5'; 17 is an incoming bell detection section that detects a ringing signal coming from the receiving side telephone line 5; 18 is an incoming bell A receiving side holding relay 19 which activates the receiving side holding switch 7 upon detection by the detection unit 17 is a transformer for transmitting an announcement voice, and one winding side thereof is connected to the open end of the coupling switch 4. An announcement voice amplification section 20 is connected to the other winding side of the announcement voice transmission transformer 19, and an announcement generator 21 is connected to the voice amplification section 20 for notifying the caller that the call is a forwarded call. The announcement generator 21 is composed of a magnetic tape or the like. 23 is a coupling relay that activates the coupling switch 4; 24 is a response detector that detects when the transfer destination telephone device D answers;
25 is a telephone number signal generator that is activated upon detection by the incoming call detector 17 and sends out the telephone number of the forwarding destination telephone D; 26 is the calling side holding switch 8;
27 is an announcement activation signal circuit, 28 is activated by the operation of the response detector 24, and a "transfer" is sent to the transfer destination telephone D.
A message tone generator 22 is a signal circuit that transmits the termination of the message tone generator 28. (Function) When a call is placed from calling telephone A to receiving telephone B,
The incoming call detection unit 17 detects the signal, activates the called side holding relay 18 and the calling side telephone holding relay 26, and switches the holding switch 7 of the called side telephone line 5.
and close the hold switch 8 of the calling telephone line 5',
Close both telephone lines. At the same time, the announcement generator 21 is activated by the announcement activation signal circuit 27, and the signal is transferred to the calling party via the announcement voice amplifier 20 → announcement voice transmission transformer 19 → open end of the coupling switch 4 → called telephone line 5. Announce that it is a telephone call,
The telephone number signal generator 25 is activated to send the telephone number of the transfer destination telephone D to the calling telephone line 5' side. When the handset of the transfer destination telephone D is picked up, the response detector 24 detects this, and a message tone generator is activated to distinguish whether the transfer destination telephone D is a transfer call or a direct call. 28 is activated and the person who answered the transfer destination telephone device D hears a signal tone or voice for several seconds, informing the person that this call is a transferred call. The message is not leaked to the caller because the binding switch is open. When the message tone generator 28 finishes operating,
The announcement generator 21 is activated by the signal from the signal circuit 22.
Similarly, a signal from the signal circuit 22 activates the coupling relay 23, closes the coupling switch 4, and connects the receiving telephone line 5 and the originating telephone line 5' for communication. (Effects) As described above, the present invention provides the receiving side telephone line 5 with
An incoming bell detector 17 that detects a ringing signal arriving from the called telephone line 5 is connected to an incoming call holding switch 7 that closes the called telephone line 5, and the ringing signal is transmitted to the calling telephone line 5'. a call holding switch 8 for closing the side telephone line 5'; a telephone number signal generator 25 for transmitting the telephone number of the transfer destination telephone; a response detector 24 for detecting off-hook of the transfer destination telephone; a message tone generator 28 which is activated upon detection by the response detector 24 and sends a signal capable of distinguishing between "forwarding" and "direct transmission" to the forwarding destination telephone;
In the telephone transfer device, a coupling switch 4 is provided between the called telephone line 5 and the calling telephone line 5' to enable communication between the two telephone lines. 5 is an announcement generator 21 that notifies the caller that the call is a forwarded call.
is connected, and the announcement generator 21 is activated by the detection of the incoming call detector 17, and when the message tone generator 28 finishes operating, the announcement generator 21 is stopped and the coupling switch 4 is closed. As the call forwarding device with incoming call announcement is configured to When a response is delayed, the response is continued until the response is delayed, so that the call is not disconnected due to a misunderstanding by the caller.
第１図は本発明の転送装置のブロツク図、第２
図は同詳細図である。
符号の説明、１……事務所、２……出先事務
所、３……電話転送器、４……結合スイツチ、５
……着信側電話回線、５′……発信側電話回線、
６……端子、７……着信側保持スイツチ、８……
発信側保持スイツチ、１５……端子、１６……ア
ナウンスアダプター、１７……着信ベル検出部、
１８……保持用リレー、１９……アナウンス音声
伝達用トランス、２０……アナウンス音声増幅
部、２１……アナウンス発生器、２２……信号回
路、２３……結合用リレー、２４……応答検知
器、２５……電話番号信号発生器、２６……発信
側電話保持リレー、２７……アナウンス起動信号
回路、２８……メツセージトーン発生器、Ａ……
呼電話器、Ｂ……着信電話器、Ｃ……発信電話
器、Ｄ……転送先電話器。
Figure 1 is a block diagram of the transfer device of the present invention, Figure 2 is a block diagram of the transfer device of the present invention.
The figure is a detailed view of the same. Explanation of symbols, 1...Office, 2...Outside office, 3...Telephone transfer device, 4...Connection switch, 5
... Calling side telephone line, 5' ... Calling side telephone line,
6...Terminal, 7...Receiver side hold switch, 8...
Calling side holding switch, 15...terminal, 16...announcement adapter, 17...incoming bell detection unit,
18... Holding relay, 19... Announcement audio transmission transformer, 20... Announcement audio amplification section, 21... Announcement generator, 22... Signal circuit, 23... Coupling relay, 24... Response detector , 25... Telephone number signal generator, 26... Calling side telephone holding relay, 27... Announcement activation signal circuit, 28... Message tone generator, A...
Calling telephone, B... Incoming telephone, C... Calling telephone, D... Transfer destination telephone.
Claims (1)
ら到来する呼出信号を検出する着信ベル検出部１
７と、前記着信側電話回線５を閉結する着信保持
スイツチ７とを接続し、発信側電話回線５′に、
該発信側電話回線５′を閉結する発信保持スイツ
チ８と、転送先電話器の電話番号を発信する電話
番号信号発生器２５と、前記転送先電話器のオフ
フツクを検出する応答検出知２４と、該応答検知
器２４の検出により作動し前記転送先電話器に
「転送」と「直送」とを区別しうる信号を送出す
るメツセージトーン発生器２８とを接続し、前記
着信側電話回線５と前記発信側電話回線５′との
間に、両電話回線を通話可能に接続しうる結合ス
イツチ４を設けた電話転送装置において、前記着
信側電話回線５には発呼者に転送電話である旨を
報知するアナウンス発生器２１を接続し、該アナ
ウンス発生器２１は前記着信ベル検出部１７の検
出により作動し、前記メツセージトーン発生器２
８の作動終了により前記アナウンス発生器２１は
停止し、前記結合スイツチ４は閉結するように構
成した着信アナウンス付電話転送装置。1 An incoming bell detection unit 1 that detects a ringing signal arriving from the called telephone line 5 on the called telephone line 5.
7 and the incoming call hold switch 7 that closes the called side telephone line 5, and connects the call holding switch 7 to the calling side telephone line 5'.
A call holding switch 8 for closing the calling side telephone line 5', a telephone number signal generator 25 for transmitting the telephone number of the transfer destination telephone, and a response detection detector 24 for detecting off-hook of the transfer destination telephone. , a message tone generator 28 is connected to the message tone generator 28 which is activated by the detection of the response detector 24 and sends a signal that can distinguish between "transfer" and "direct transmission" to the transfer destination telephone, and the telephone line 5 of the receiving side In the telephone transfer device, which is provided with a coupling switch 4 between the calling telephone line 5' and the connecting switch 4 capable of connecting both telephone lines for communication, the receiving telephone line 5 is provided with a message indicating to the calling party that the call is a forwarded call. An announcement generator 21 that notifies the user is connected, and the announcement generator 21 is activated by the detection of the incoming call detector 17, and the message tone generator 2
8, the announcement generator 21 is stopped and the connection switch 4 is closed.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18786782A JPS5977750A (en) | 1982-10-26 | 1982-10-26 | Telephone transfer device with incoming announcement |
| GB08326548A GB2130848B (en) | 1982-10-26 | 1983-10-04 | Telephone call transfer apparatus with receiving announcing means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18786782A JPS5977750A (en) | 1982-10-26 | 1982-10-26 | Telephone transfer device with incoming announcement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5977750A JPS5977750A (en) | 1984-05-04 |
| JPS6347390B2 true JPS6347390B2 (en) | 1988-09-21 |
Family
ID=16213601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18786782A Granted JPS5977750A (en) | 1982-10-26 | 1982-10-26 | Telephone transfer device with incoming announcement |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS5977750A (en) |
| GB (1) | GB2130848B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS605658A (en) * | 1983-06-07 | 1985-01-12 | Hashimoto Corp | Secretary telephone system |
| US4825460A (en) * | 1988-06-22 | 1989-04-25 | Messagephone, Inc. | Line interface unit for caller-controlled receipt and delivery of voice messages |
| US4901341A (en) * | 1988-06-22 | 1990-02-13 | Messager Partners | Method and apparatus for caller-controlled receipt and delivery of voice messages |
| US5222123A (en) * | 1990-01-08 | 1993-06-22 | Motorola, Inc. | Registration and automatic call redirecting for cordless telephone systems |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4913087A (en) * | 1972-05-17 | 1974-02-05 | ||
| JPS52109314A (en) * | 1976-03-10 | 1977-09-13 | Masao Uchiumi | Telephone transfer device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3689702A (en) * | 1970-07-09 | 1972-09-05 | Com U Trol Corp | Remote dialing telephone apparatus |
-
1982
- 1982-10-26 JP JP18786782A patent/JPS5977750A/en active Granted
-
1983
- 1983-10-04 GB GB08326548A patent/GB2130848B/en not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4913087A (en) * | 1972-05-17 | 1974-02-05 | ||
| JPS52109314A (en) * | 1976-03-10 | 1977-09-13 | Masao Uchiumi | Telephone transfer device |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2130848A (en) | 1984-06-06 |
| GB2130848B (en) | 1985-09-11 |
| GB8326548D0 (en) | 1983-11-02 |
| JPS5977750A (en) | 1984-05-04 |
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