JPS5652961A - Inter-call system of key telephone system - Google Patents
Inter-call system of key telephone systemInfo
- Publication number
- JPS5652961A JPS5652961A JP12804379A JP12804379A JPS5652961A JP S5652961 A JPS5652961 A JP S5652961A JP 12804379 A JP12804379 A JP 12804379A JP 12804379 A JP12804379 A JP 12804379A JP S5652961 A JPS5652961 A JP S5652961A
- Authority
- JP
- Japan
- Prior art keywords
- telephone set
- dial signal
- inter
- push
- relay
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
- H04M9/002—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12804379A JPS5652961A (en) | 1979-10-05 | 1979-10-05 | Inter-call system of key telephone system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12804379A JPS5652961A (en) | 1979-10-05 | 1979-10-05 | Inter-call system of key telephone system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5652961A true JPS5652961A (en) | 1981-05-12 |
Family
ID=14975091
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12804379A Pending JPS5652961A (en) | 1979-10-05 | 1979-10-05 | Inter-call system of key telephone system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5652961A (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01112892A (ja) * | 1987-10-27 | 1989-05-01 | Nippon Telegr & Teleph Corp <Ntt> | 電話機着信音の鳴動装置 |
-
1979
- 1979-10-05 JP JP12804379A patent/JPS5652961A/ja active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01112892A (ja) * | 1987-10-27 | 1989-05-01 | Nippon Telegr & Teleph Corp <Ntt> | 電話機着信音の鳴動装置 |
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