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
- Sub-Exchange Stations And Push- Button Telephones (AREA)
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12745287U JPS6433254U (fr) | 1987-08-24 | 1987-08-24 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12745287U JPS6433254U (fr) | 1987-08-24 | 1987-08-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6433254U true JPS6433254U (fr) | 1989-03-01 |
Family
ID=31379898
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12745287U Pending JPS6433254U (fr) | 1987-08-24 | 1987-08-24 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6433254U (fr) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61245787A (ja) * | 1985-04-24 | 1986-11-01 | Nec Corp | 自動応答ドアホン装置 |
-
1987
- 1987-08-24 JP JP12745287U patent/JPS6433254U/ja active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61245787A (ja) * | 1985-04-24 | 1986-11-01 | Nec Corp | 自動応答ドアホン装置 |
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