JPS53137608A - Common use system of trunks for call waiting meeting communication - Google Patents
Common use system of trunks for call waiting meeting communicationInfo
- Publication number
- JPS53137608A JPS53137608A JP5251577A JP5251577A JPS53137608A JP S53137608 A JPS53137608 A JP S53137608A JP 5251577 A JP5251577 A JP 5251577A JP 5251577 A JP5251577 A JP 5251577A JP S53137608 A JPS53137608 A JP S53137608A
- Authority
- JP
- Japan
- Prior art keywords
- trunks
- call waiting
- common use
- use system
- meeting communication
- 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
- H04M3/56—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Interface Circuits In Exchanges (AREA)
Abstract
PURPOSE:To enable to perform call waiting service and meeting communication service with the same trunks for all the services.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5251577A JPS53137608A (en) | 1977-05-07 | 1977-05-07 | Common use system of trunks for call waiting meeting communication |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5251577A JPS53137608A (en) | 1977-05-07 | 1977-05-07 | Common use system of trunks for call waiting meeting communication |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS53137608A true JPS53137608A (en) | 1978-12-01 |
Family
ID=12916863
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5251577A Pending JPS53137608A (en) | 1977-05-07 | 1977-05-07 | Common use system of trunks for call waiting meeting communication |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS53137608A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS572189A (en) * | 1980-06-04 | 1982-01-07 | Oki Electric Ind Co Ltd | Trunk switching circuit |
-
1977
- 1977-05-07 JP JP5251577A patent/JPS53137608A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS572189A (en) * | 1980-06-04 | 1982-01-07 | Oki Electric Ind Co Ltd | Trunk switching circuit |
JPS6223951B2 (en) * | 1980-06-04 | 1987-05-26 | Oki Denki Kogyo Kk |
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