JPS568986A - Circuit reservation system of key telephone set - Google Patents
Circuit reservation system of key telephone setInfo
- Publication number
- JPS568986A JPS568986A JP8388879A JP8388879A JPS568986A JP S568986 A JPS568986 A JP S568986A JP 8388879 A JP8388879 A JP 8388879A JP 8388879 A JP8388879 A JP 8388879A JP S568986 A JPS568986 A JP S568986A
- Authority
- JP
- Japan
- Prior art keywords
- telephone sets
- external circuit
- signals
- mftn
- mft1
- 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
- H04Q3/42—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
- H04Q3/545—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker in which the logic circuitry controlling the exchange is centralised using a stored programme
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
Abstract
PURPOSE:To offer complete circuit reservation service and to send originating signals from telephone sets by operating external circuit selection buttons of telephone sets and by storing reservation information when the external circuit is engaged while sending signals from dey telephone sets when not. CONSTITUTION:Main control unit MCU has a processor and office units SLU1- SLUm that have processors as well are provided with the functions of connecting with the external circuit. Further, terminal units TEU1-TEUn with processors are connected to key telephone sets MFT1-MFTn through voice circuits VL1-VLn and data circuits DL1-DLn. After external circuit selection buttons of telephone sets MFT1-MFTn that are not shown in the figure are operated, reservation information is stored when the external circuit is engaged and signals are sent out from telephone sets MFT1-MFTn when the external circuit is disengaged. Consequently, the perfect circuit reservation service can be offered and signals can be sent from the telephone sets.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54083888A JPS6022871B2 (en) | 1979-07-04 | 1979-07-04 | Line reservation method for button telephone equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54083888A JPS6022871B2 (en) | 1979-07-04 | 1979-07-04 | Line reservation method for button telephone equipment |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS568986A true JPS568986A (en) | 1981-01-29 |
JPS6022871B2 JPS6022871B2 (en) | 1985-06-04 |
Family
ID=13815184
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP54083888A Expired JPS6022871B2 (en) | 1979-07-04 | 1979-07-04 | Line reservation method for button telephone equipment |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6022871B2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4535199A (en) * | 1983-07-18 | 1985-08-13 | At&T Information Systems Inc. | Data call transfer preindication |
JPS6148267A (en) * | 1984-08-15 | 1986-03-08 | Nippon Telegr & Teleph Corp <Ntt> | Common system for instant/reserved connection line |
JPS648757A (en) * | 1987-07-01 | 1989-01-12 | Canon Kk | Telephone controller |
JPH03160893A (en) * | 1989-11-17 | 1991-07-10 | Matsushita Electric Ind Co Ltd | Key telephone system |
-
1979
- 1979-07-04 JP JP54083888A patent/JPS6022871B2/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4535199A (en) * | 1983-07-18 | 1985-08-13 | At&T Information Systems Inc. | Data call transfer preindication |
JPS6148267A (en) * | 1984-08-15 | 1986-03-08 | Nippon Telegr & Teleph Corp <Ntt> | Common system for instant/reserved connection line |
JPS648757A (en) * | 1987-07-01 | 1989-01-12 | Canon Kk | Telephone controller |
JPH03160893A (en) * | 1989-11-17 | 1991-07-10 | Matsushita Electric Ind Co Ltd | Key telephone system |
Also Published As
Publication number | Publication date |
---|---|
JPS6022871B2 (en) | 1985-06-04 |
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