JPS56146350A - Special telephone system - Google Patents

Special telephone system

Info

Publication number
JPS56146350A
JPS56146350A JP5015680A JP5015680A JPS56146350A JP S56146350 A JPS56146350 A JP S56146350A JP 5015680 A JP5015680 A JP 5015680A JP 5015680 A JP5015680 A JP 5015680A JP S56146350 A JPS56146350 A JP S56146350A
Authority
JP
Japan
Prior art keywords
communication
display
subscriber
typewriter
typewriters
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
JP5015680A
Other languages
Japanese (ja)
Inventor
Yasuharu Moriya
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 JP5015680A priority Critical patent/JPS56146350A/en
Publication of JPS56146350A publication Critical patent/JPS56146350A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)

Abstract

PURPOSE:To realize a communication of conversation type with the use of characters, by operating typewriters between a calling and called subscribers and thus securing a display on the display devices of both sides. CONSTITUTION:The calling subscriber 1 calls out the called subscriber via an exchange device 3. In case a communication is carried out by typewriters, the fact that the communication is originated by a typewriter 12 is informed to the terminal device 11. Ths information is sent simultaneously with a transmission of the number of subscriber 2 to the exchange device 11. In this case, a connection is secured at the caller side among the device 11, the display control device and the display device 13 each. At the incoming side, the terminal device 12 informs the incoming, and at the same time a communication by a typewriter is decided. Then the display control device 24 and display device 23 are connected to a circuit.
JP5015680A 1980-04-15 1980-04-15 Special telephone system Pending JPS56146350A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5015680A JPS56146350A (en) 1980-04-15 1980-04-15 Special telephone system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5015680A JPS56146350A (en) 1980-04-15 1980-04-15 Special telephone system

Publications (1)

Publication Number Publication Date
JPS56146350A true JPS56146350A (en) 1981-11-13

Family

ID=12851317

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5015680A Pending JPS56146350A (en) 1980-04-15 1980-04-15 Special telephone system

Country Status (1)

Country Link
JP (1) JPS56146350A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60149271U (en) * 1984-02-17 1985-10-03 東京都代表者東京都知事鈴木　俊一 Full-duplex simultaneous call text telephone device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60149271U (en) * 1984-02-17 1985-10-03 東京都代表者東京都知事鈴木　俊一 Full-duplex simultaneous call text telephone device

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