JPS55112066A - Connection system to busy extension telephone - Google Patents
Connection system to busy extension telephoneInfo
- Publication number
- JPS55112066A JPS55112066A JP2043979A JP2043979A JPS55112066A JP S55112066 A JPS55112066 A JP S55112066A JP 2043979 A JP2043979 A JP 2043979A JP 2043979 A JP2043979 A JP 2043979A JP S55112066 A JPS55112066 A JP S55112066A
- Authority
- JP
- Japan
- Prior art keywords
- busy
- subscriber
- called subscriber
- called
- state
- 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
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/42—Systems providing special services or facilities to subscribers
- H04M3/48—Arrangements for recalling a calling subscriber when the wanted subscriber ceases to be busy
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
Abstract
PURPOSE:To secure the automatic calling to the called subscriber at the moment when the called subscriber is put under the idle state, by securing the queuing state with the busy tone being heard and with no special operation given in case the calling subscriber encounters the busy state of the called subscriber. CONSTITUTION:When calling subscriber SUBA has dialing in the normal way to call called subscriber SUBB, the called number is detected by register control circuit REGC and through originating register OR to be then memorized in memory device MU via central controller CC. Controller CC retrieves the number group table memorized in device MU via the called number received from SUBA, and then gives the busy checking to the called subscriber retrieved. And if the busy state is decided, controller CC transfers the storage position information of the trunk which is used by SUBB for talking plus the calling subscriber storage position information to trunk scanner TSC and busy extension monitor unit BSS through buses SP BUS in order to give monitoring for the idle state of the called subscriber.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2043979A JPS55112066A (en) | 1979-02-22 | 1979-02-22 | Connection system to busy extension telephone |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2043979A JPS55112066A (en) | 1979-02-22 | 1979-02-22 | Connection system to busy extension telephone |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55112066A true JPS55112066A (en) | 1980-08-29 |
Family
ID=12027067
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2043979A Pending JPS55112066A (en) | 1979-02-22 | 1979-02-22 | Connection system to busy extension telephone |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55112066A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02277365A (en) * | 1989-04-19 | 1990-11-13 | Hitachi Terekomu Technol:Kk | Dial-in camp-on system |
-
1979
- 1979-02-22 JP JP2043979A patent/JPS55112066A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02277365A (en) * | 1989-04-19 | 1990-11-13 | Hitachi Terekomu Technol:Kk | Dial-in camp-on system |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GR3017840T3 (en) | Paging method in a private branch exchange with a paging device providing operation modes for paging different from each other. | |
JPS573491A (en) | Incoming call restricting system | |
JPS55112066A (en) | Connection system to busy extension telephone | |
JP2655599B2 (en) | Local line response method | |
JPS5558653A (en) | Automatic calling control system | |
EP0355488A3 (en) | Method for realizing a control procedure in combination with the realisation of a hold state of a line in a calculator-controlled communication system, especially a key telephone system | |
KR0174549B1 (en) | Overflow Subscriber Backup Method in Key Phone System | |
JPS60229459A (en) | Individual incoming system | |
JPS63102448A (en) | Automatic callback system at time of no response of private branch exchange | |
JPS6348216B2 (en) | ||
JPS61200754A (en) | Camp on calling system | |
JPS62120153A (en) | Pseudo call generating system | |
JPS5752257A (en) | Calling control system | |
JPH02217056A (en) | Attendant board system utilizing distributed system in electronic exchange | |
JPS59134964A (en) | Incoming call transfer system | |
JPS59182664A (en) | Paging system by multi-function telephone set | |
JPS63250956A (en) | Secrecy system connecting system | |
GB1258166A (en) | ||
JPS5591256A (en) | Connection system for party line subscriber | |
JPS5884561A (en) | Automatic test system for subscriber terminal | |
JPS637065A (en) | Ring-off detecting device for electronic automatic exchange or the like | |
GB940091A (en) | Improvements in or relating to circuit arrangements for private branch telephone exchanges | |
JPS6142991B2 (en) | ||
JPH02143792A (en) | Attendant board incoming call restriction system | |
KR960028025A (en) | Respond to CO line in private exchange system |