JPS51132910A - Call back methd of an electrode switchboard - Google Patents

Call back methd of an electrode switchboard

Info

Publication number
JPS51132910A
JPS51132910A JP5673475A JP5673475A JPS51132910A JP S51132910 A JPS51132910 A JP S51132910A JP 5673475 A JP5673475 A JP 5673475A JP 5673475 A JP5673475 A JP 5673475A JP S51132910 A JPS51132910 A JP S51132910A
Authority
JP
Japan
Prior art keywords
methd
switchboard
electrode
call back
call
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
JP5673475A
Other languages
Japanese (ja)
Inventor
Takeo Fukuda
Kazuhiko Hanawa
Kiyoshi Urui
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP5673475A priority Critical patent/JPS51132910A/en
Publication of JPS51132910A publication Critical patent/JPS51132910A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—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)
  • Exchange Systems With Centralized Control (AREA)

Abstract

PURPOSE:To go to call back by dialing of the selected extention phone, after the office line dividing.
JP5673475A 1975-05-15 1975-05-15 Call back methd of an electrode switchboard Pending JPS51132910A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5673475A JPS51132910A (en) 1975-05-15 1975-05-15 Call back methd of an electrode switchboard

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5673475A JPS51132910A (en) 1975-05-15 1975-05-15 Call back methd of an electrode switchboard

Publications (1)

Publication Number Publication Date
JPS51132910A true JPS51132910A (en) 1976-11-18

Family

ID=13035730

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5673475A Pending JPS51132910A (en) 1975-05-15 1975-05-15 Call back methd of an electrode switchboard

Country Status (1)

Country Link
JP (1) JPS51132910A (en)

Similar Documents

Publication Publication Date Title
JPS5422704A (en) Cordless telephone system
JPS5318302A (en) Cordless telephone unit
JPS5231604A (en) Toll call control system by call-back link
JPS5313806A (en) Telephone extension system
JPS51132910A (en) Call back methd of an electrode switchboard
JPS5279706A (en) Subscriber line calling system in key telephone unit
JPS52119004A (en) Switching system having capability of switching connection during call ing
JPS51128208A (en) Idling power saving
JPS51144503A (en) Telephone set
JPS51144504A (en) Telephone set
JPS523319A (en) Crosstalk reduction system
JPS5247305A (en) Extension calling systemof button telephone system
JPS5261903A (en) Telephone no. deigita lindicator
JPS51117808A (en) Incoming call transfer service system
JPS5324207A (en) Key telephone set
JPS51117806A (en) Method to change subscriber telephone nos of contact parties
JPS5390704A (en) Incoming response system
JPS51114002A (en) Automatic call unit
JPS5216106A (en) Telephone call unit
JPS52138804A (en) Talkie equipment
JPS54908A (en) Centralized response telephone set
JPS5225506A (en) Loud-speaker unit
JPS5234602A (en) Multiple office interphone equipment
JPS51132905A (en) Telephone call apparatus
JPS51132908A (en) Call back method of an electrode switchboard