JPS5775094A - Dial transmission system - Google Patents
Dial transmission systemInfo
- Publication number
- JPS5775094A JPS5775094A JP15187980A JP15187980A JPS5775094A JP S5775094 A JPS5775094 A JP S5775094A JP 15187980 A JP15187980 A JP 15187980A JP 15187980 A JP15187980 A JP 15187980A JP S5775094 A JPS5775094 A JP S5775094A
- Authority
- JP
- Japan
- Prior art keywords
- trunk
- trunk line
- subscriber
- path
- central office
- 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
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
- H04Q3/54—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker in which the logic circuitry controlling the exchange is centralised
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
Abstract
PURPOSE:To make the outgoing control possible, by connecting a subscriber and a central office trunk only in the receiving side at a trunk line outgoing time to repeat the dial tone but not transmit the PB signal to the trunk line directly. CONSTITUTION:When the request of a subscriber SUB for trunk line outgoing is received through a path T2 of a four-wire channel SW by a PB receiver PBREC, a central processing device CC acquires a central office trunk BWT to start an office exchange and sets a receiving-side path R1 between a subscriber's circuit LC and the central office trunk BWT. The dial tone transmitted through a trunk line CO is repeated to the subscriber SUB by the receiving-side path R1. Dial numbers are received by the PB receiver PBREC and are checked by the central processing device CC and the transmitted to the trunk line CO through a path T3 and the central office trunk BWT from a PB sender PBSND.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15187980A JPS5775094A (en) | 1980-10-29 | 1980-10-29 | Dial transmission system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15187980A JPS5775094A (en) | 1980-10-29 | 1980-10-29 | Dial transmission system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5775094A true JPS5775094A (en) | 1982-05-11 |
Family
ID=15528195
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15187980A Pending JPS5775094A (en) | 1980-10-29 | 1980-10-29 | Dial transmission system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5775094A (en) |
-
1980
- 1980-10-29 JP JP15187980A patent/JPS5775094A/en active Pending
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5690664A (en) | Acceptance system for extension connection information | |
JPS56129469A (en) | Transfer system of incoming call | |
GB1085938A (en) | Voice-frequency key dialling telephone system | |
JPS5775094A (en) | Dial transmission system | |
JPS5775093A (en) | Sender connection system | |
JPS5792965A (en) | Data communication device | |
JPS56111369A (en) | Time-division multiplex transmission equipment of subscriber's line | |
JPS56157169A (en) | Called subscriber answering system of data transmission system | |
JPS5624867A (en) | Facsimile simultaneous transmission and reception system | |
JPS55117370A (en) | Telephone terminal control system | |
JPS5758452A (en) | Button telephone device | |
JPS56152393A (en) | Multiparty radiotelephony system | |
JPS5781762A (en) | Terminal mode switching signal system for digital telephone | |
JPS56103569A (en) | Test system for facsimile terminal | |
JPS5792990A (en) | Electronic key telephone device | |
JPS56132891A (en) | Call start connecting system | |
JPS55105486A (en) | Voice transmission system | |
JPS5624862A (en) | Answering system for office incoming call | |
JPS5650692A (en) | Sending system of push-button dial signal | |
JPS56102139A (en) | Channel selection controlling system | |
JPS55161458A (en) | Fault discriminating system in facsimile communication system | |
JPS5691576A (en) | Transmission system for subscriber's line signal | |
JPS5738047A (en) | Signal system for digital telephone set | |
JPS5733882A (en) | Push button register sender system | |
JPS5577270A (en) | Communication unit |