JPS54121009A - Manual desk outgoing connection system - Google Patents

Manual desk outgoing connection system

Info

Publication number
JPS54121009A
JPS54121009A JP2896578A JP2896578A JPS54121009A JP S54121009 A JPS54121009 A JP S54121009A JP 2896578 A JP2896578 A JP 2896578A JP 2896578 A JP2896578 A JP 2896578A JP S54121009 A JPS54121009 A JP S54121009A
Authority
JP
Japan
Prior art keywords
outgoing
call
desk
cont
att
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
Application number
JP2896578A
Other languages
Japanese (ja)
Inventor
Shigeru Kimura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP2896578A priority Critical patent/JPS54121009A/en
Publication of JPS54121009A publication Critical patent/JPS54121009A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/60—Semi-automatic systems, i.e. in which the numerical selection of the outgoing line is under the control of an operator

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Exchange Systems With Centralized Control (AREA)

Abstract

PURPOSE:To omit the manual desk outgoing connection process program by detecting the outgoing from the manual desk via the call detector circuit which performs the call detection for the general subscriber. CONSTITUTION:When the operator gives the calling through operation of manual desk ATT, a DC closed circuit is formed between interface circuit INF and call detector circuit CD. The CD carries out the call and detection for ATT and then transmits the call detection information to control unit CONT. And CONT connects the ATT to outgoing register trunk ORT. The caller's number from the desk operator is received at ORT and then stored in CONT. In case this outgoing call is to be sent to the other station, CONT connects outgoing sender trunk OST and outgoing trunk OGT via channel (3) to transmit the necessary number information to the exchanger of other station.
JP2896578A 1978-03-13 1978-03-13 Manual desk outgoing connection system Pending JPS54121009A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2896578A JPS54121009A (en) 1978-03-13 1978-03-13 Manual desk outgoing connection system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2896578A JPS54121009A (en) 1978-03-13 1978-03-13 Manual desk outgoing connection system

Publications (1)

Publication Number Publication Date
JPS54121009A true JPS54121009A (en) 1979-09-19

Family

ID=12263118

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2896578A Pending JPS54121009A (en) 1978-03-13 1978-03-13 Manual desk outgoing connection system

Country Status (1)

Country Link
JP (1) JPS54121009A (en)

Similar Documents

Publication Publication Date Title
JPS5720040A (en) Radio individual selective calling system
JPS54121009A (en) Manual desk outgoing connection system
JPS57206156A (en) Calling system for information of calling subscriber
JPS6472651A (en) Calling system by character dial
JPS57145466A (en) Switchboard
JPS561650A (en) Announcing system for telephone subscriber
JPS53129508A (en) Loop detection system for subscriber's line
JPS5630353A (en) Communication system with engaged or absent subscriber
JPS5613862A (en) Control system capable of informing originating subscriber number
JPS5585184A (en) Transmission and reception system for information of sender
JPS52125213A (en) Absence transfer system
JPS5627556A (en) Call transfer system
JPS57197951A (en) Voice and data simultaneous connection system
JPS5563162A (en) Subscriber line call signal transmission system
JPS54118110A (en) No-charge connection preventing system
JPS54152804A (en) Main wire transfer system
JPS5620365A (en) Fault detection system
JPS5553960A (en) Recording reproducing system for incoming number during absence
JPS5636259A (en) Switchboard connection system
JPS5690667A (en) Automatic transfer system for incoming call
JPS5460810A (en) Non-answer transfer system for absence transfer call
JPS55145455A (en) Backup system for center device
JPS54150906A (en) Informing system for calling subscriber telephone number
JPS54133009A (en) Delivery and control system for subscriber number
JPS5791065A (en) Malacious call processing system for unattended exchanger