JPS5718153A - Plural trunk connection system - Google Patents

Plural trunk connection system

Info

Publication number
JPS5718153A
JPS5718153A JP9255680A JP9255680A JPS5718153A JP S5718153 A JPS5718153 A JP S5718153A JP 9255680 A JP9255680 A JP 9255680A JP 9255680 A JP9255680 A JP 9255680A JP S5718153 A JPS5718153 A JP S5718153A
Authority
JP
Japan
Prior art keywords
equipment
switch
trunk
terminal
path
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
JP9255680A
Other languages
Japanese (ja)
Inventor
Yukinori Nakagawa
Kenji Matsui
Teruyuki Kubo
Katsunori Hoshida
Koichi 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.)
Fujitsu Ltd
Iwatsu Electric Co Ltd
Nippon Telegraph and Telephone Corp
Original Assignee
Fujitsu Ltd
Iwatsu Electric Co Ltd
Nippon Telegraph and Telephone 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 Fujitsu Ltd, Iwatsu Electric Co Ltd, Nippon Telegraph and Telephone Corp filed Critical Fujitsu Ltd
Priority to JP9255680A priority Critical patent/JPS5718153A/en
Publication of JPS5718153A publication Critical patent/JPS5718153A/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)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

PURPOSE:To obtain an exchange system which is able to execute in parallel plural kinds of communication, by connecting terminal equipments by a main trunk path of one circuit and a sub-trunk path of one or more circuits. CONSTITUTION:When a calling party takes up a transmitter and receiver of a telephone set A of a terminal equipment T1, a calling signal (a) is sent to a terminal control equipment X1, and the equipment X1 sends a calling signal a' to a local switch L1 by making a trunk L11 a loop state. The switch L1 sends back a dial tone (b) through the trunk L11 after a dial-tone connection has been completed, and the control equipment sends out a plural trunk connecting special number (c). Subsequently, a path for reaching a control switch N from the switch L1 is set, the switch N sets a sub-trunk L12 which is used for connecting mutually nontelephone system terminals, in accordance with the information from the equipment X1, and after that, when the switch N receives a dial of a number of a terminal equipment to be called, from a calling party, a terminal control equipment X2 in a terminal equipment T2 to be called is caught after setting a path to a local switch L2. After that, mutual communication between a telephone equipment and a nontelephone terminal is executed.
JP9255680A 1980-07-07 1980-07-07 Plural trunk connection system Pending JPS5718153A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9255680A JPS5718153A (en) 1980-07-07 1980-07-07 Plural trunk connection system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9255680A JPS5718153A (en) 1980-07-07 1980-07-07 Plural trunk connection system

Publications (1)

Publication Number Publication Date
JPS5718153A true JPS5718153A (en) 1982-01-29

Family

ID=14057679

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9255680A Pending JPS5718153A (en) 1980-07-07 1980-07-07 Plural trunk connection system

Country Status (1)

Country Link
JP (1) JPS5718153A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6018049A (en) * 1983-07-11 1985-01-30 Nippon Telegr & Teleph Corp <Ntt> Connection system to plural trunk lines
JPS61176240A (en) * 1985-01-31 1986-08-07 Canon Inc Communication equipment
JPS61181255A (en) * 1985-02-05 1986-08-13 Canon Inc Communication equipment
JPS61214837A (en) * 1985-03-20 1986-09-24 Fujitsu Ltd Multimedium communication system
JPS62128653A (en) * 1985-08-20 1987-06-10 Fujitsu Ltd Connection system for plural paths

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6018049A (en) * 1983-07-11 1985-01-30 Nippon Telegr & Teleph Corp <Ntt> Connection system to plural trunk lines
JPH0125260B2 (en) * 1983-07-11 1989-05-17 Nippon Telegraph & Telephone
JPS61176240A (en) * 1985-01-31 1986-08-07 Canon Inc Communication equipment
JPS61181255A (en) * 1985-02-05 1986-08-13 Canon Inc Communication equipment
JPS61214837A (en) * 1985-03-20 1986-09-24 Fujitsu Ltd Multimedium communication system
JPS62128653A (en) * 1985-08-20 1987-06-10 Fujitsu Ltd Connection system for plural paths
JPH0442861B2 (en) * 1985-08-20 1992-07-14 Fujitsu Ltd

Similar Documents

Publication Publication Date Title
GB1297565A (en)
US3249698A (en) Pentaconta semi-electronic telephone system
JPS5718153A (en) Plural trunk connection system
US3345466A (en) Intercommunication system
JPS5745769A (en) Control signal system for subscriber terminal connection
US3453391A (en) Signal converter circuit
US2659770A (en) Ringing control circuit for telephone systems
US2966553A (en) Multiparty telephone system
US3057964A (en) Multifrequency signaling receiver
US2892893A (en) Drop-back telephone selector
US3313886A (en) V-f key-dialling
US3484557A (en) Supervisory signaling over radio-telephone system
US3330911A (en) Private automatic branch exchanges
US3231684A (en) Control register for a multi-exchange telephone system
US2351766A (en) Telephone system
GB777099A (en) Party line identification system
US2838610A (en) Electronic telephone system
JPS56132841A (en) Different-speed communication system
GB1489741A (en) Telecommunication system networks
US2938959A (en) Relayless line circuit
US3019298A (en) Telephone connector switch of the relay type
US2707211A (en) Adapter circuit
GB926973A (en) A circuit arrangement for a telecommunications installation
ES452751A1 (en) Telephone switching circuit
US3510602A (en) Automatic dial circuit