JPS57111197A - Night trunk line switching system - Google Patents
Night trunk line switching systemInfo
- Publication number
- JPS57111197A JPS57111197A JP18694680A JP18694680A JPS57111197A JP S57111197 A JPS57111197 A JP S57111197A JP 18694680 A JP18694680 A JP 18694680A JP 18694680 A JP18694680 A JP 18694680A JP S57111197 A JPS57111197 A JP S57111197A
- Authority
- JP
- Japan
- Prior art keywords
- relay
- switch
- telephone
- night
- channel network
- 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
- H04M3/50—Centralised arrangements for answering calls; Centralised arrangements for recording messages for absent or busy subscribers ; Centralised arrangements for recording messages
- H04M3/51—Centralised call answering arrangements requiring operator intervention, e.g. call or contact centers for telemarketing
- H04M3/515—Night service systems
Landscapes
- Business, Economics & Management (AREA)
- Marketing (AREA)
- 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 |
---|---|---|---|
JP18694680A JPS57111197A (en) | 1980-12-26 | 1980-12-26 | Night trunk line switching system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18694680A JPS57111197A (en) | 1980-12-26 | 1980-12-26 | Night trunk line switching system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57111197A true JPS57111197A (en) | 1982-07-10 |
Family
ID=16197484
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18694680A Pending JPS57111197A (en) | 1980-12-26 | 1980-12-26 | Night trunk line switching system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57111197A (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110572516A (zh) * | 2019-09-05 | 2019-12-13 | 惠州Tcl移动通信有限公司 | 通话控制方法、装置、存储介质及终端设备 |
-
1980
- 1980-12-26 JP JP18694680A patent/JPS57111197A/ja active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110572516A (zh) * | 2019-09-05 | 2019-12-13 | 惠州Tcl移动通信有限公司 | 通话控制方法、装置、存储介质及终端设备 |
US11736608B2 (en) | 2019-09-05 | 2023-08-22 | Huizhou Tcl Mobile Communication Co., Ltd. | Call control method and apparatus, and storage medium and terminal device |
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