JPS56107690A - Toll outgoing control system - Google Patents

Toll outgoing control system

Info

Publication number
JPS56107690A
JPS56107690A JP1034580A JP1034580A JPS56107690A JP S56107690 A JPS56107690 A JP S56107690A JP 1034580 A JP1034580 A JP 1034580A JP 1034580 A JP1034580 A JP 1034580A JP S56107690 A JPS56107690 A JP S56107690A
Authority
JP
Japan
Prior art keywords
received
dial tone
pay station
trunk
toll
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
JP1034580A
Other languages
Japanese (ja)
Inventor
Kazumasa Takama
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 JP1034580A priority Critical patent/JPS56107690A/en
Publication of JPS56107690A publication Critical patent/JPS56107690A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M17/00—Prepayment of wireline communication systems, wireless communication systems or telephone systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Security & Cryptography (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Exchange Systems With Centralized Control (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)

Abstract

PURPOSE:To shorten both holding time and control processing time of an originating register trunk, by providing a dial tone detection circuit for pay station and executing toll outgoing control under the condition as to whether the pay station dial tone is received or not, in case when the trunk outgoing is made from the subscriber's telephone set. CONSTITUTION:The central control equipment CC excutes the scanning as to whether a dial pulse from the subscriber's telephone set A has been received or not, by the originating register trunk ORT. And, when it has been detected whether the dial pulse is received or not, whether a dial tone from the pay station has arrived or not is scanned by the pay station dial tone detection circuit DTD. In case when the dial tone has been received from the pay station, the trunk ORT is held unitl the toll outgoing discrimination number is received, and when this numeral has been received, the toll outgoing control class of the telephone set A, which has been read out from the memory device M is compared with this received number, and also the trunk ORT is opened by releasing the connecting link (1).
JP1034580A 1980-01-31 1980-01-31 Toll outgoing control system Pending JPS56107690A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1034580A JPS56107690A (en) 1980-01-31 1980-01-31 Toll outgoing control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1034580A JPS56107690A (en) 1980-01-31 1980-01-31 Toll outgoing control system

Publications (1)

Publication Number Publication Date
JPS56107690A true JPS56107690A (en) 1981-08-26

Family

ID=11747591

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1034580A Pending JPS56107690A (en) 1980-01-31 1980-01-31 Toll outgoing control system

Country Status (1)

Country Link
JP (1) JPS56107690A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5866490A (en) * 1981-10-15 1983-04-20 Matsushita Electric Ind Co Ltd Automatic switchboard

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5866490A (en) * 1981-10-15 1983-04-20 Matsushita Electric Ind Co Ltd Automatic switchboard
JPH0325980B2 (en) * 1981-10-15 1991-04-09 Matsushita Electric Ind Co Ltd

Similar Documents

Publication Publication Date Title
CA2041501A1 (en) Automated channel test unit
GB2019698A (en) Telephone number memory and indicator system
GB2242101B (en) Telephone signalling
JPS57160250A (en) Incoming recording system
JPS56107690A (en) Toll outgoing control system
JPS564969A (en) Cashless public telephone set
JPS5541051A (en) Identification system for outgoing subscriber
JPS5738050A (en) Data transmission system
JPS56156058A (en) Automatic telephone transfer device
DE2962506D1 (en) Circuit for telephone sets detecting the dialling pulses
JPS57138247A (en) Informing telephone system for incoming message
JPS5628550A (en) Direct telephone connection system
JPS6472651A (en) Calling system by character dial
JPS6454853A (en) Automatic exchange with incoming rejection service function
JPS5648752A (en) Charging selection system
JPS5739690A (en) Incoming call distribution control system
JPS57111164A (en) Testing sender information transfer system
JPS57138250A (en) Fault informing device
JPS54505A (en) Identifying system of types of incoming lines
JPS55130287A (en) Storing method of carrier circuit for 4-wire exchange device
JPS5752257A (en) Calling control system
JPS5787292A (en) Trunk scanning system
JPS57136849A (en) Remote subscriber line testing system
JPS56117459A (en) Telephone device
JPS5741063A (en) Hot-line control system