JPS61245787A - Automatic answering doorphone set - Google Patents
Automatic answering doorphone setInfo
- Publication number
- JPS61245787A JPS61245787A JP8793985A JP8793985A JPS61245787A JP S61245787 A JPS61245787 A JP S61245787A JP 8793985 A JP8793985 A JP 8793985A JP 8793985 A JP8793985 A JP 8793985A JP S61245787 A JPS61245787 A JP S61245787A
- Authority
- JP
- Japan
- Prior art keywords
- doorphone
- section
- telephone set
- busy
- controlled
- 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 abstract 2
Abstract
PURPOSE: To inform a caller of a doorphone such as a visitor of the presence of a called party even when a called telephone set is busy with an external line by providing an automatic information sending function to the doorphone.
CONSTITUTION: When an incoming detection signal is applied to a control section 6, the section 6 discriminates a signal from a talking detection section 5 and when it is confirmed that a key telephone set 3 is not busy, a talking switch section 9 is controlled to short-circuit points C and B, and a call tone sending section 7 is controlled to send a call tone to both the doorphone 1 and the telephone set 3. In case of an incoming call to the doorphone, when the telephone set 3 is busy, the control section 6 controls a talking switch section 9 to short-circuit points A and C, and then the section 7 is controlled to send a call tone to the telephone set 3. Further, a message sending section 8 is controlled to send a message to a doorphone 11 in order to inform it to a doorphone caller that the telephone set 3 is busy.
COPYRIGHT: (C)1986,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8793985A JPS61245787A (en) | 1985-04-24 | 1985-04-24 | Automatic answering doorphone set |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8793985A JPS61245787A (en) | 1985-04-24 | 1985-04-24 | Automatic answering doorphone set |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS61245787A true JPS61245787A (en) | 1986-11-01 |
Family
ID=13928871
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8793985A Pending JPS61245787A (en) | 1985-04-24 | 1985-04-24 | Automatic answering doorphone set |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS61245787A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6433254U (en) * | 1987-08-24 | 1989-03-01 | ||
JPH0419889U (en) * | 1990-05-31 | 1992-02-19 |
-
1985
- 1985-04-24 JP JP8793985A patent/JPS61245787A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6433254U (en) * | 1987-08-24 | 1989-03-01 | ||
JPH0419889U (en) * | 1990-05-31 | 1992-02-19 |
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