JPS54134910A - Extension two-way camp-on system - Google Patents
Extension two-way camp-on systemInfo
- Publication number
- JPS54134910A JPS54134910A JP4211078A JP4211078A JPS54134910A JP S54134910 A JPS54134910 A JP S54134910A JP 4211078 A JP4211078 A JP 4211078A JP 4211078 A JP4211078 A JP 4211078A JP S54134910 A JPS54134910 A JP S54134910A
- Authority
- JP
- Japan
- Prior art keywords
- extension
- calling
- telephone set
- camp
- called
- 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
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/42—Systems providing special services or facilities to subscribers
- H04M3/48—Arrangements for recalling a calling subscriber when the wanted subscriber ceases to be busy
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4211078A JPS54134910A (en) | 1978-04-12 | 1978-04-12 | Extension two-way camp-on system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4211078A JPS54134910A (en) | 1978-04-12 | 1978-04-12 | Extension two-way camp-on system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54134910A true JPS54134910A (en) | 1979-10-19 |
Family
ID=12626809
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4211078A Pending JPS54134910A (en) | 1978-04-12 | 1978-04-12 | Extension two-way camp-on system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54134910A (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5868355A (ja) * | 1981-10-19 | 1983-04-23 | Hitachi Ltd | 話中加入者再呼出方式 |
-
1978
- 1978-04-12 JP JP4211078A patent/JPS54134910A/ja active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5868355A (ja) * | 1981-10-19 | 1983-04-23 | Hitachi Ltd | 話中加入者再呼出方式 |
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