JPS5255896A - Message-call change-over apparatus - Google Patents
Message-call change-over apparatusInfo
- Publication number
- JPS5255896A JPS5255896A JP13278175A JP13278175A JPS5255896A JP S5255896 A JPS5255896 A JP S5255896A JP 13278175 A JP13278175 A JP 13278175A JP 13278175 A JP13278175 A JP 13278175A JP S5255896 A JPS5255896 A JP S5255896A
- Authority
- JP
- Japan
- Prior art keywords
- message
- over apparatus
- abnormality
- call change
- call
- 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
Landscapes
- Alarm Systems (AREA)
- Fire Alarms (AREA)
- Selective Calling Equipment (AREA)
Abstract
PURPOSE: To inform the information of recording tapes to a control center in the event of occurence of abnormality and permit the call between the site where the abnormality has occured and the control center side by providing means for detecting the abnormality and informing the same to remote monitors.
COPYRIGHT: (C)1977,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13278175A JPS5255896A (en) | 1975-11-04 | 1975-11-04 | Message-call change-over apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13278175A JPS5255896A (en) | 1975-11-04 | 1975-11-04 | Message-call change-over apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5255896A true JPS5255896A (en) | 1977-05-07 |
Family
ID=15089387
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13278175A Pending JPS5255896A (en) | 1975-11-04 | 1975-11-04 | Message-call change-over apparatus |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5255896A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02228159A (en) * | 1989-03-01 | 1990-09-11 | Secom Co Ltd | Guard system |
-
1975
- 1975-11-04 JP JP13278175A patent/JPS5255896A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02228159A (en) * | 1989-03-01 | 1990-09-11 | Secom Co Ltd | Guard system |
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