JPS5628591A - Dial receiving system - Google Patents

Dial receiving system

Info

Publication number
JPS5628591A
JPS5628591A JP10351979A JP10351979A JPS5628591A JP S5628591 A JPS5628591 A JP S5628591A JP 10351979 A JP10351979 A JP 10351979A JP 10351979 A JP10351979 A JP 10351979A JP S5628591 A JPS5628591 A JP S5628591A
Authority
JP
Japan
Prior art keywords
telephone set
trunks
originating
dial
signal
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
JP10351979A
Other languages
Japanese (ja)
Inventor
Yoshimitsu Murayama
Takao Fujita
Toshiki Hatanaka
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 JP10351979A priority Critical patent/JPS5628591A/en
Publication of JPS5628591A publication Critical patent/JPS5628591A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Exchange Systems With Centralized Control (AREA)

Abstract

PURPOSE:To discriminate telephone sets by a dial signal to make disconnection of needless trunks possible, by connecting originating register trunks for DP telephone set and PB telephone set in parallel and by operating both trunks simultaneously by originating of one telephone set. CONSTITUTION:DP telephone set 1 and PB telephone set 2 are connected to the branch connection line. For dial receiving from subscriber 3, subscriber 3 is connected to originating register trunks 8 and 9. Since the telephone set which originates is not discriminated when originating starts, line 4 is connected to both trunks temporarily by primary switch 16 in line link network in control circuit 15, and closing of the channel is confirmed, and simultaneously, dial tone is transmitted. In case of on-hook of PB 2, the SP signal of detector 11 is output by the multifrequency signal dependent upon dialing, and photocoupler 20 and the SP relay are operated to confirm oscillation from PB. In case of on-hook of DP 1, relays 17 and 18 are released, and the A relay is operated intermittently, thereby confirming DP.
JP10351979A 1979-08-16 1979-08-16 Dial receiving system Pending JPS5628591A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10351979A JPS5628591A (en) 1979-08-16 1979-08-16 Dial receiving system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10351979A JPS5628591A (en) 1979-08-16 1979-08-16 Dial receiving system

Publications (1)

Publication Number Publication Date
JPS5628591A true JPS5628591A (en) 1981-03-20

Family

ID=14356183

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10351979A Pending JPS5628591A (en) 1979-08-16 1979-08-16 Dial receiving system

Country Status (1)

Country Link
JP (1) JPS5628591A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60172899A (en) * 1984-02-10 1985-09-06 Nippon Telegr & Teleph Corp <Ntt> Receiving system of selection signal
JPS62108697A (en) * 1985-11-06 1987-05-19 San Terehon Kk Telephone direct connecting device
EP0529948A2 (en) * 1991-08-26 1993-03-03 AT&T Corp. Telecommunications call processing

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52127105A (en) * 1976-04-19 1977-10-25 Hitachi Ltd Dial-tone connecting system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52127105A (en) * 1976-04-19 1977-10-25 Hitachi Ltd Dial-tone connecting system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60172899A (en) * 1984-02-10 1985-09-06 Nippon Telegr & Teleph Corp <Ntt> Receiving system of selection signal
JPS62108697A (en) * 1985-11-06 1987-05-19 San Terehon Kk Telephone direct connecting device
EP0529948A2 (en) * 1991-08-26 1993-03-03 AT&T Corp. Telecommunications call processing
JPH07177229A (en) * 1991-08-26 1995-07-14 At & T Corp Call processing method for telephone and its device
EP0529948B1 (en) * 1991-08-26 1998-12-23 AT&T Corp. Telecommunications call processing

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