JPH0351541U - - Google Patents
Info
- Publication number
- JPH0351541U JPH0351541U JP11188989U JP11188989U JPH0351541U JP H0351541 U JPH0351541 U JP H0351541U JP 11188989 U JP11188989 U JP 11188989U JP 11188989 U JP11188989 U JP 11188989U JP H0351541 U JPH0351541 U JP H0351541U
- Authority
- JP
- Japan
- Prior art keywords
- doorbell
- call
- outside line
- handset
- hold tone
- 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 1
Landscapes
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
Description
図面は本考案の構成を示すブロツク図である。
１……制御回路、４……切換回路、５……保留
音発生回路、６……ハンドセツト、７……ドアホ
ン、９……呼出し検出回路、１０……フツク検出
回路。
The drawing is a block diagram showing the configuration of the present invention. DESCRIPTION OF SYMBOLS 1...Control circuit, 4...Switching circuit, 5...Hold tone generation circuit, 6...Handset, 7...Door phone, 9...Call detection circuit, 10...Hook detection circuit.
Claims (1)
於て、外線とドアホンを切換える手段と、保留音
を発生する手段と、ドアホンよりの呼出しを検出
する手段と、ハンドセツトのオフフツクを検出す
る手段と、外線と通話中に保留操作が行われると
保留音を外線に送出し、一方ドアホンよりの呼出
しを検出するとハンドセツトのオフフツクが検出
される迄の期間保留音発生手段の出力をドアホン
へ送出するよう制御する制御手段で構成した事を
特徴とするドアホン機能付電話機。 A telephone with a doorbell function to which a doorbell can be connected has a means for switching between an outside line and a doorbell, a means for generating a hold tone, a means for detecting a call from the doorbell, a means for detecting an off-hook of the handset, and a means for switching between an outside line and a doorbell. When a hold operation is performed during a call, the hold tone is sent to the outside line, and when a call from the doorphone is detected, the output of the hold tone generating means is controlled to be sent to the doorphone for a period of time until the off-hook of the handset is detected. A telephone with a door intercom function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11188989U JPH0351541U (en) | 1989-09-25 | 1989-09-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11188989U JPH0351541U (en) | 1989-09-25 | 1989-09-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0351541U true JPH0351541U (en) | 1991-05-20 |
Family
ID=31660351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11188989U Pending JPH0351541U (en) | 1989-09-25 | 1989-09-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0351541U (en) |
-
1989
- 1989-09-25 JP JP11188989U patent/JPH0351541U/ja active Pending
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