JPS5712348B2 - - Google Patents
Info
- Publication number
- JPS5712348B2 JPS5712348B2 JP9727775A JP9727775A JPS5712348B2 JP S5712348 B2 JPS5712348 B2 JP S5712348B2 JP 9727775 A JP9727775 A JP 9727775A JP 9727775 A JP9727775 A JP 9727775A JP S5712348 B2 JPS5712348 B2 JP S5712348B2
- Authority
- JP
- Japan
- 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
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 |
|---|---|---|---|
| JP9727775A JPS5220712A (en) | 1975-08-11 | 1975-08-11 | Call waiting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9727775A JPS5220712A (en) | 1975-08-11 | 1975-08-11 | Call waiting system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5220712A JPS5220712A (en) | 1977-02-16 |
| JPS5712348B2 true JPS5712348B2 (US20020095090A1-20020718-M00002.png) | 1982-03-10 |
Family
ID=14188016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9727775A Granted JPS5220712A (en) | 1975-08-11 | 1975-08-11 | Call waiting system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5220712A (US20020095090A1-20020718-M00002.png) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4445212A (en) * | 1981-10-29 | 1984-04-24 | Gte Automatic Electric Labs Inc. | Arrangement for multiple custom calling |
| US4446553A (en) * | 1981-10-29 | 1984-05-01 | Gte Automatic Electric Labs Inc. | Arrangement for multiple custom calling |
| US4446554A (en) * | 1981-10-29 | 1984-05-01 | Gte Automatic Electric Labs Inc. | Arrangement for multiple custom calling |
| US4445211A (en) * | 1981-10-29 | 1984-04-24 | Gte Automatic Electric Labs Inc. | Arrangement for multiple custom calling |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS506281A (US20020095090A1-20020718-M00002.png) * | 1973-05-18 | 1975-01-22 |
-
1975
- 1975-08-11 JP JP9727775A patent/JPS5220712A/ja active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS506281A (US20020095090A1-20020718-M00002.png) * | 1973-05-18 | 1975-01-22 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5220712A (en) | 1977-02-16 |
