JPS56122294A - Trunk line decentralized answer system - Google Patents
Trunk line decentralized answer systemInfo
- Publication number
- JPS56122294A JPS56122294A JP2544680A JP2544680A JPS56122294A JP S56122294 A JPS56122294 A JP S56122294A JP 2544680 A JP2544680 A JP 2544680A JP 2544680 A JP2544680 A JP 2544680A JP S56122294 A JPS56122294 A JP S56122294A
- Authority
- JP
- Japan
- Prior art keywords
- telephone set
- trunk line
- control device
- trunk
- information
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/58—Arrangements providing connection between main exchange and sub-exchange or satellite
- H04Q3/62—Arrangements providing connection between main exchange and sub-exchange or satellite for connecting to private branch exchanges
- H04Q3/625—Arrangements in the private branch exchange
Landscapes
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
Abstract
PURPOSE:To enable to use the general extension telephone set as a telephone set which can answer to the trunk line, by providing a memory device, where information indicating that the general extension telephone set is an extension telephone set which can answer to the trunk line is stored, and a trunk line incoming display device. CONSTITUTION:Application for the private branch exchange of the stored program control system is shown in the figure; and when a call comes from the trunk line, central control device CC detects incoming by scanning information of central office trunk COT of trunk control device TRC and stores this information and drives trunk line incoming display control device CLD to display information visibly and audibly by trunk line incoming display device LCB. Meanwhile, the call of the extension subscriber is detected by receiving scanning information of line circuit LC from line scanning control device LSC, and the calling extension telephone set is collated with the telephone set which is registered in the memory device preliminarily; and in case of registered telephone set A.TEL, switch network SW NET is operated from switch control device SW to connect COT and A.TEL, thereby making the answer service possible.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2544680A JPS56122294A (en) | 1980-02-29 | 1980-02-29 | Trunk line decentralized answer system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2544680A JPS56122294A (en) | 1980-02-29 | 1980-02-29 | Trunk line decentralized answer system |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56122294A true JPS56122294A (en) | 1981-09-25 |
JPS6113438B2 JPS6113438B2 (en) | 1986-04-14 |
Family
ID=12166226
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2544680A Granted JPS56122294A (en) | 1980-02-29 | 1980-02-29 | Trunk line decentralized answer system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56122294A (en) |
-
1980
- 1980-02-29 JP JP2544680A patent/JPS56122294A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6113438B2 (en) | 1986-04-14 |
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