JPS5797293A - Incoming and outgoing call discriminating system for a number of common telephone set - Google Patents

Incoming and outgoing call discriminating system for a number of common telephone set

Info

Publication number
JPS5797293A
JPS5797293A JP17304080A JP17304080A JPS5797293A JP S5797293 A JPS5797293 A JP S5797293A JP 17304080 A JP17304080 A JP 17304080A JP 17304080 A JP17304080 A JP 17304080A JP S5797293 A JPS5797293 A JP S5797293A
Authority
JP
Japan
Prior art keywords
incoming
telephone set
circuit
common telephone
outgoing 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
JP17304080A
Other languages
Japanese (ja)
Inventor
Keiji Sato
Naoki Yamaguchi
Manabu Oda
Yasunori Tarui
Yoshinori 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 JP17304080A priority Critical patent/JPS5797293A/en
Publication of JPS5797293A publication Critical patent/JPS5797293A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q5/00—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange
    • H04Q5/02—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange with direct connection for all subscribers, i.e. party-line systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)

Abstract

PURPOSE:To enable to use the same telephone set as generic subscribers and to eliminate the need for attendant boards, by providing an incoming/outgoing call discriminating means between a number of common telephone sets and subscriber terminals of an exchanger. CONSTITUTION:A number of common telephone incoming/outgoing call discriminator 4 is provided between common telephone sets 11, 1n and a subscriber terminal 3 of an exchanger 2. The call of the telephone set 11 is detected at an outgoing call discriminator circuit 6, a connecting circuit 7 is started from a control circuit 5 and a channel to the subscriber terminal 3 is set. The information discriminating the outgoing common telephone set 11 is transmitted to the exchanger 2 via the circuit 6. In case of incoming call, an incoming discriminating circuit 8 can discriminate the common telephone set 1n, and the control circuit 5 starts the circuit 7 to set the channel for the telephone set 1n and the subscriber terminal 3.
JP17304080A 1980-12-08 1980-12-08 Incoming and outgoing call discriminating system for a number of common telephone set Pending JPS5797293A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17304080A JPS5797293A (en) 1980-12-08 1980-12-08 Incoming and outgoing call discriminating system for a number of common telephone set

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17304080A JPS5797293A (en) 1980-12-08 1980-12-08 Incoming and outgoing call discriminating system for a number of common telephone set

Publications (1)

Publication Number Publication Date
JPS5797293A true JPS5797293A (en) 1982-06-16

Family

ID=15953084

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17304080A Pending JPS5797293A (en) 1980-12-08 1980-12-08 Incoming and outgoing call discriminating system for a number of common telephone set

Country Status (1)

Country Link
JP (1) JPS5797293A (en)

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