JPS58181357A - Network controller - Google Patents

Network controller

Info

Publication number
JPS58181357A
JPS58181357A JP387182A JP387182A JPS58181357A JP S58181357 A JPS58181357 A JP S58181357A JP 387182 A JP387182 A JP 387182A JP 387182 A JP387182 A JP 387182A JP S58181357 A JPS58181357 A JP S58181357A
Authority
JP
Japan
Prior art keywords
line
terminal device
transmitted
signal
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
JP387182A
Other languages
Japanese (ja)
Inventor
Kyoichi Nakakawara
Fukue Ogawa
Yuzo Tsuruta
Kazuo Kanai
Kuniaki Okada
Yuichi Morita
Kazuhiko Shirai
Tatsuo Matsubara
Sueo Konnai
Original Assignee
Toshiba Corp
Nippon Telegr & Teleph Corp <Ntt>
Nec Corp
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, Nippon Telegr & Teleph Corp <Ntt>, Nec Corp filed Critical Toshiba Corp
Priority to JP387182A priority Critical patent/JPS58181357A/en
Publication of JPS58181357A publication Critical patent/JPS58181357A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors

Abstract

PURPOSE:To provide a call priority function, by monitoring the usage state of a telephone line corresponding to a call request signal transmitted from a terminal device, and connecting the telephone line to the terminal device when the line is not busy. CONSTITUTION:When the call request signal from terminal devices 3, 4 is incoming, only when the line 1 is dicriminated that it is in the idle state based on an output signal of a line monitor circuit 107, a network controller 100 closes the DC loop of a subscriber telephone line 1 under the disconnection state of the line 1 with switching circuits 101, 102 with a telephone set 2. Further, a call reception signal is transmitted to the terminal device 3, 4 and a selection signal is transmitted to an exchange based on the selection information given from the terminal devices.
JP387182A 1982-01-13 1982-01-13 Network controller Pending JPS58181357A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP387182A JPS58181357A (en) 1982-01-13 1982-01-13 Network controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP387182A JPS58181357A (en) 1982-01-13 1982-01-13 Network controller

Publications (1)

Publication Number Publication Date
JPS58181357A true JPS58181357A (en) 1983-10-24

Family

ID=11569243

Family Applications (1)

Application Number Title Priority Date Filing Date
JP387182A Pending JPS58181357A (en) 1982-01-13 1982-01-13 Network controller

Country Status (1)

Country Link
JP (1) JPS58181357A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6166460A (en) * 1984-09-10 1986-04-05 Matsushita Electric Ind Co Ltd Data terminal equipment
JPS6417548A (en) * 1987-07-13 1989-01-20 Secom Co Ltd Automatic communication equipment
JPS6468171A (en) * 1987-09-09 1989-03-14 Ikegami Tsushinki Kk Data processor
JPH01157155A (en) * 1987-12-14 1989-06-20 Toshiba Corp Network control equipment

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5555655A (en) * 1978-10-20 1980-04-23 Nippon Telegr & Teleph Corp <Ntt> Selection unit for telephone line
JPS55140994A (en) * 1979-04-18 1980-11-04 Nippon Telegraph & Telephone Automatic metering terminal device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5555655A (en) * 1978-10-20 1980-04-23 Nippon Telegr & Teleph Corp <Ntt> Selection unit for telephone line
JPS55140994A (en) * 1979-04-18 1980-11-04 Nippon Telegraph & Telephone Automatic metering terminal device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6166460A (en) * 1984-09-10 1986-04-05 Matsushita Electric Ind Co Ltd Data terminal equipment
JPS6417548A (en) * 1987-07-13 1989-01-20 Secom Co Ltd Automatic communication equipment
JPS6468171A (en) * 1987-09-09 1989-03-14 Ikegami Tsushinki Kk Data processor
JPH01157155A (en) * 1987-12-14 1989-06-20 Toshiba Corp Network control equipment

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