JPS57148455A - Incoming limiting system - Google Patents

Incoming limiting system

Info

Publication number
JPS57148455A
JPS57148455A JP3365481A JP3365481A JPS57148455A JP S57148455 A JPS57148455 A JP S57148455A JP 3365481 A JP3365481 A JP 3365481A JP 3365481 A JP3365481 A JP 3365481A JP S57148455 A JPS57148455 A JP S57148455A
Authority
JP
Japan
Prior art keywords
incoming
limiting
extension
operator
memory
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
Application number
JP3365481A
Other languages
Japanese (ja)
Other versions
JPS6247021B2 (en
Inventor
Hirohide Takano
Shuichi Ishii
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP3365481A priority Critical patent/JPS57148455A/en
Publication of JPS57148455A publication Critical patent/JPS57148455A/en
Publication of JPS6247021B2 publication Critical patent/JPS6247021B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/08—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic
    • H04M9/10—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic with switching of direction of transmission by voice frequency

Abstract

PURPOSE:To facilitate and secure the operation of a B-board operator by providing an incoming limiting memory, which is used to perform the display that the incoming of an extension subscriber is being limited and registered, to the storage device of a private branch exchange. CONSTITUTION:A private branch exchange is provided with an incoming limiting memory TR which shows incoming limiting registration and reset states to extension subscribers A and B, and on the basis of the contents of the memory TR, the extension subscriber A being in the incoming limiting registration state is discriminated to let an operator of a B board ATT know the extension subscriber A. Further, the extension subscriber A is connected to the B board ATT upon occasion. Therefore, the operator only performs simple connecting operation to perform the limiting processing operation of incoming-limited extension subscribers securely and easily.
JP3365481A 1981-03-09 1981-03-09 Incoming limiting system Granted JPS57148455A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3365481A JPS57148455A (en) 1981-03-09 1981-03-09 Incoming limiting system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3365481A JPS57148455A (en) 1981-03-09 1981-03-09 Incoming limiting system

Publications (2)

Publication Number Publication Date
JPS57148455A true JPS57148455A (en) 1982-09-13
JPS6247021B2 JPS6247021B2 (en) 1987-10-06

Family

ID=12392430

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3365481A Granted JPS57148455A (en) 1981-03-09 1981-03-09 Incoming limiting system

Country Status (1)

Country Link
JP (1) JPS57148455A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5279807A (en) * 1975-12-26 1977-07-05 Nippon Telegr & Teleph Corp <Ntt> Receiving control system
JPS54139412A (en) * 1978-04-21 1979-10-29 Nec Corp Telephone incoming control system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5279807A (en) * 1975-12-26 1977-07-05 Nippon Telegr & Teleph Corp <Ntt> Receiving control system
JPS54139412A (en) * 1978-04-21 1979-10-29 Nec Corp Telephone incoming control system

Also Published As

Publication number Publication date
JPS6247021B2 (en) 1987-10-06

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