JPS5792965A - Data communication device - Google Patents
Data communication deviceInfo
- Publication number
- JPS5792965A JPS5792965A JP55167862A JP16786280A JPS5792965A JP S5792965 A JPS5792965 A JP S5792965A JP 55167862 A JP55167862 A JP 55167862A JP 16786280 A JP16786280 A JP 16786280A JP S5792965 A JPS5792965 A JP S5792965A
- Authority
- JP
- Japan
- Prior art keywords
- station
- ring
- back tone
- call
- communication device
- 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
- H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
- H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Communication Control (AREA)
Abstract
PURPOSE:To report the state of the called subscriber to the calling subscriber, bu providing a ring-back tone transmitting circuit in a communication device, which can call and communicate data through a telephone exchange network, to return the ring-back tone to a subscriber who requests the call. CONSTITUTION:In case of the call request from a station A to a station B, when the calling subscriber connects a telephone set 6a to line by a switch on a network control device 2a to call the station B, a data communication device 12b is connected in AC in the station B by automatic incoming. After incoming, when a data communication request detecting circuit 3 does not detect the request signal, a call request indicator 8 is operated, and simulatneously, a control circuit 13 operates a ring-back tone transmitting circuit 14 to transmit the ring- back tone through a transformer 10. Then, the calling subscriber listens to this ring-back tone to find the station B called; and when the operation of the connection of a telephone set 6b to a line 7b is performed in the station B, the transmission of the ring-back tone is stopped to make the call possible.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55167862A JPS5792965A (en) | 1980-11-28 | 1980-11-28 | Data communication device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55167862A JPS5792965A (en) | 1980-11-28 | 1980-11-28 | Data communication device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5792965A true JPS5792965A (en) | 1982-06-09 |
Family
ID=15857457
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55167862A Pending JPS5792965A (en) | 1980-11-28 | 1980-11-28 | Data communication device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5792965A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60203059A (en) * | 1984-03-14 | 1985-10-14 | Hashimoto Corp | Switching connection device of telephone line |
JPS6235758A (en) * | 1985-08-09 | 1987-02-16 | Canon Inc | Data communication equipment |
JPH04124090U (en) * | 1991-04-23 | 1992-11-11 | 株式会社たねや | Monaka sweets |
JPH09186794A (en) * | 1996-10-17 | 1997-07-15 | Hitachi Ltd | Facsimile equipment |
JPH09186793A (en) * | 1996-10-17 | 1997-07-15 | Hitachi Ltd | Line controller |
-
1980
- 1980-11-28 JP JP55167862A patent/JPS5792965A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60203059A (en) * | 1984-03-14 | 1985-10-14 | Hashimoto Corp | Switching connection device of telephone line |
JPS6235758A (en) * | 1985-08-09 | 1987-02-16 | Canon Inc | Data communication equipment |
JPH04124090U (en) * | 1991-04-23 | 1992-11-11 | 株式会社たねや | Monaka sweets |
JPH09186794A (en) * | 1996-10-17 | 1997-07-15 | Hitachi Ltd | Facsimile equipment |
JPH09186793A (en) * | 1996-10-17 | 1997-07-15 | Hitachi Ltd | Line controller |
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