JPS57136852A - Informing device equipped with centralizing function - Google Patents
Informing device equipped with centralizing functionInfo
- Publication number
- JPS57136852A JPS57136852A JP2252581A JP2252581A JPS57136852A JP S57136852 A JPS57136852 A JP S57136852A JP 2252581 A JP2252581 A JP 2252581A JP 2252581 A JP2252581 A JP 2252581A JP S57136852 A JPS57136852 A JP S57136852A
- Authority
- JP
- Japan
- Prior art keywords
- information
- level
- equipment
- subordinate
- master
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/42—Systems providing special services or facilities to subscribers
- H04M3/50—Centralised arrangements for answering calls; Centralised arrangements for recording messages for absent or busy subscribers ; Centralised arrangements for recording messages
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2252581A JPS57136852A (en) | 1981-02-18 | 1981-02-18 | Informing device equipped with centralizing function |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2252581A JPS57136852A (en) | 1981-02-18 | 1981-02-18 | Informing device equipped with centralizing function |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57136852A true JPS57136852A (en) | 1982-08-24 |
JPS6239868B2 JPS6239868B2 (ja) | 1987-08-25 |
Family
ID=12085197
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2252581A Granted JPS57136852A (en) | 1981-02-18 | 1981-02-18 | Informing device equipped with centralizing function |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57136852A (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60180362A (ja) * | 1984-02-28 | 1985-09-14 | Tokyo Tatsuno Co Ltd | インタ−ホン |
-
1981
- 1981-02-18 JP JP2252581A patent/JPS57136852A/ja active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60180362A (ja) * | 1984-02-28 | 1985-09-14 | Tokyo Tatsuno Co Ltd | インタ−ホン |
Also Published As
Publication number | Publication date |
---|---|
JPS6239868B2 (ja) | 1987-08-25 |
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