JPH0320118B2 - - Google Patents
Info
- Publication number
- JPH0320118B2 JPH0320118B2 JP56144699A JP14469981A JPH0320118B2 JP H0320118 B2 JPH0320118 B2 JP H0320118B2 JP 56144699 A JP56144699 A JP 56144699A JP 14469981 A JP14469981 A JP 14469981A JP H0320118 B2 JPH0320118 B2 JP H0320118B2
- Authority
- JP
- Japan
- Prior art keywords
- telephone
- telephones
- call
- extension
- button
- 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.)
- Expired
Links
- 230000008054 signal transmission Effects 0.000 claims description 17
- 238000004891 communication Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 2
- 238000001514 detection method Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005316 response function Methods 0.000 description 1
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
- H04M9/005—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems with subscriber controlled access to an exchange line
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- 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 |
---|---|---|---|
JP56144699A JPS5847360A (ja) | 1981-09-16 | 1981-09-16 | ボタン電話装置構成方式 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56144699A JPS5847360A (ja) | 1981-09-16 | 1981-09-16 | ボタン電話装置構成方式 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5847360A JPS5847360A (ja) | 1983-03-19 |
JPH0320118B2 true JPH0320118B2 (enrdf_load_stackoverflow) | 1991-03-18 |
Family
ID=15368213
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56144699A Granted JPS5847360A (ja) | 1981-09-16 | 1981-09-16 | ボタン電話装置構成方式 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5847360A (enrdf_load_stackoverflow) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59212098A (ja) * | 1983-05-17 | 1984-11-30 | Matsushita Electric Ind Co Ltd | ボタン電話装置 |
-
1981
- 1981-09-16 JP JP56144699A patent/JPS5847360A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS5847360A (ja) | 1983-03-19 |
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