JPS6433254U - - Google Patents
Info
- Publication number
- JPS6433254U JPS6433254U JP12745287U JP12745287U JPS6433254U JP S6433254 U JPS6433254 U JP S6433254U JP 12745287 U JP12745287 U JP 12745287U JP 12745287 U JP12745287 U JP 12745287U JP S6433254 U JPS6433254 U JP S6433254U
- Authority
- JP
- Japan
- Prior art keywords
- voice message
- doorphone
- busy
- call
- standard telephone
- 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
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 235000014676 Phragmites communis Nutrition 0.000 description 1
Landscapes
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
Description
第1図はこの考案の一実施例を示すブロツク図
、第2図はその動作を示すフローチヤート、第3
図はドアホン呼に対する動作を示すフローチヤー
トである。
1……電話交換機、2……PB外線、4……通
話線、51〜5n……電話機、6……保留音源回
路、7……着信検出回路、9……ループ検出回路
、10……フオトサイリスタ、11……呼出信号
音回路、12……リードリレー、13……内線呼
出音回路、14……PBレシーバ回路、16……
機能設定回路、17……マイクロプロセツサ、2
0a,20b……ドアホン、21……ドアホン通
話回路。
Fig. 1 is a block diagram showing an embodiment of this invention, Fig. 2 is a flowchart showing its operation, and Fig. 3 is a block diagram showing an embodiment of this invention.
The figure is a flowchart showing the operation for a doorphone call. DESCRIPTION OF SYMBOLS 1... Telephone exchange, 2... PB outside line, 4... Call line, 5 1 to 5 n ... Telephone, 6... Hold sound source circuit, 7... Incoming call detection circuit, 9... Loop detection circuit, 10... ...Photothyristor, 11... Ringing signal tone circuit, 12... Reed relay, 13... Extension ringing circuit, 14... PB receiver circuit, 16...
Function setting circuit, 17...Microprocessor, 2
0a, 20b... Door phone, 21... Door phone call circuit.
Claims (1)
びドアホンが接続され、ドアホン呼出中における
標準電話機のオフフツクによつてドアホン応答し
て内線通話路を介してドアホン通話を行なう電話
交換装置において、前記内線通話路が話中である
旨の音声メツセージを送出する音声メツセージ送
出手段と、前記内線通話路が話中か否かを判定す
る判定手段と、標準電話機のドアホン応答時に前
記判定手段の話中出力に基づいて前記音声メツセ
ージ送出手段を起動することを特徴とする電話交
換装置。 In a telephone exchange device in which a standard telephone and a doorbell are connected via a pair of communication lines, and the standard telephone sets off-hook during a call to the doorphone, the doorphone is answered and the doorphone call is made via the extension communication path. voice message transmitting means for transmitting a voice message indicating that the extension line is busy; determining means for determining whether the extension line is busy; and based on the busy output of the determining means when answering the doorbell of a standard telephone. A telephone exchange apparatus characterized in that the voice message sending means is activated by the voice message sending means.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12745287U JPS6433254U (en) | 1987-08-24 | 1987-08-24 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12745287U JPS6433254U (en) | 1987-08-24 | 1987-08-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6433254U true JPS6433254U (en) | 1989-03-01 |
Family
ID=31379898
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12745287U Pending JPS6433254U (en) | 1987-08-24 | 1987-08-24 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6433254U (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61245787A (en) * | 1985-04-24 | 1986-11-01 | Nec Corp | Automatic answering doorphone set |
-
1987
- 1987-08-24 JP JP12745287U patent/JPS6433254U/ja active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61245787A (en) * | 1985-04-24 | 1986-11-01 | Nec Corp | Automatic answering doorphone set |
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