JPS5642486A - Trunk device - Google Patents
Trunk deviceInfo
- Publication number
- JPS5642486A JPS5642486A JP11734679A JP11734679A JPS5642486A JP S5642486 A JPS5642486 A JP S5642486A JP 11734679 A JP11734679 A JP 11734679A JP 11734679 A JP11734679 A JP 11734679A JP S5642486 A JPS5642486 A JP S5642486A
- Authority
- JP
- Japan
- Prior art keywords
- selecting
- conference
- tone
- sound
- processor
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Devices For Supply Of Signal Current (AREA)
- Interface Circuits In Exchanges (AREA)
Abstract
PURPOSE:To realize incoming service during a call, conference calling service, etc., with the same constitution by selecting and supplying one of signals including a sound on the basis of a command from a processor to a conference talking circuit and then by selecting and outputting it. CONSTITUTION:One of sound IN, dial tone DT and no-tone NT including an input signal from a time-division channel is selected by selecting circuit SEL-IN on the basis of control information from a processor and then supplied to conference talking circuits CF0 and CF1. Further, one of a selective input to them, the outputs of conference talking circuits and no-tone NT selected by selecting circuit SEL-OUT and outputted. As a result, the efficiency of the utilization of a highway is improved and a variety of services can be offered without lowering the multiplicity of a trunk unit.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11734679A JPS5920320B2 (en) | 1979-09-14 | 1979-09-14 | trunk device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11734679A JPS5920320B2 (en) | 1979-09-14 | 1979-09-14 | trunk device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5642486A true JPS5642486A (en) | 1981-04-20 |
JPS5920320B2 JPS5920320B2 (en) | 1984-05-12 |
Family
ID=14709417
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11734679A Expired JPS5920320B2 (en) | 1979-09-14 | 1979-09-14 | trunk device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5920320B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0723118A (en) * | 1993-06-29 | 1995-01-24 | Nec Corp | Multi-party channel connection system |
-
1979
- 1979-09-14 JP JP11734679A patent/JPS5920320B2/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0723118A (en) * | 1993-06-29 | 1995-01-24 | Nec Corp | Multi-party channel connection system |
Also Published As
Publication number | Publication date |
---|---|
JPS5920320B2 (en) | 1984-05-12 |
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