JPS53131712A - Hot-line connection system for automatic exchange - Google Patents

Hot-line connection system for automatic exchange

Info

Publication number
JPS53131712A
JPS53131712A JP4592777A JP4592777A JPS53131712A JP S53131712 A JPS53131712 A JP S53131712A JP 4592777 A JP4592777 A JP 4592777A JP 4592777 A JP4592777 A JP 4592777A JP S53131712 A JPS53131712 A JP S53131712A
Authority
JP
Japan
Prior art keywords
hot
line connection
connection system
automatic exchange
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
JP4592777A
Other languages
Japanese (ja)
Inventor
Hiroyuki Watanabe
Yuji Sekiguchi
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 JP4592777A priority Critical patent/JPS53131712A/en
Publication of JPS53131712A publication Critical patent/JPS53131712A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M3/00Automatic or semi-automatic exchanges
    • H04M3/42Systems providing special services or facilities to subscribers

Abstract

PURPOSE:To enable a selective connection between the hot-line call and the general call by the will of the transmitter by providing an additional circuit to the transmission register.
JP4592777A 1977-04-22 1977-04-22 Hot-line connection system for automatic exchange Pending JPS53131712A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4592777A JPS53131712A (en) 1977-04-22 1977-04-22 Hot-line connection system for automatic exchange

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4592777A JPS53131712A (en) 1977-04-22 1977-04-22 Hot-line connection system for automatic exchange

Publications (1)

Publication Number Publication Date
JPS53131712A true JPS53131712A (en) 1978-11-16

Family

ID=12732883

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4592777A Pending JPS53131712A (en) 1977-04-22 1977-04-22 Hot-line connection system for automatic exchange

Country Status (1)

Country Link
JP (1) JPS53131712A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5485608A (en) * 1977-12-21 1979-07-07 Hitachi Ltd Automatic hot-line service system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5485608A (en) * 1977-12-21 1979-07-07 Hitachi Ltd Automatic hot-line service system
JPS5828987B2 (en) * 1977-12-21 1983-06-20 Hitachi Ltd

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