JPS56122269A - Reporting tone transmission system - Google Patents

Reporting tone transmission system

Info

Publication number
JPS56122269A
JPS56122269A JP2543280A JP2543280A JPS56122269A JP S56122269 A JPS56122269 A JP S56122269A JP 2543280 A JP2543280 A JP 2543280A JP 2543280 A JP2543280 A JP 2543280A JP S56122269 A JPS56122269 A JP S56122269A
Authority
JP
Japan
Prior art keywords
reporting
exchange
mobile telephone
relay
tone
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.)
Granted
Application number
JP2543280A
Other languages
Japanese (ja)
Other versions
JPS5944833B2 (en
Inventor
Masafumi Oshiro
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 JP55025432A priority Critical patent/JPS5944833B2/en
Publication of JPS56122269A publication Critical patent/JPS56122269A/en
Publication of JPS5944833B2 publication Critical patent/JPS5944833B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/10—Metering calls from calling party, i.e. A-party charged for the communication
    • H04M15/12—Discriminative metering, charging or billing
    • H04M15/24—Discriminative metering, charging or billing preventing metering of tax-free calls to certain lines, e.g. to fire or ambulance stations

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Meter Arrangements (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

PURPOSE:To transmit the reporting tone to the calling subscriber with no-charging, by providing a reporting tone transmission means on the two-wire subscriber's line in the mobile telephone exchange. CONSTITUTION:The call to the mobile telephone exchange subscriber occurs, the ringing is transmitted to the mobile telephone exchange through relay contact g<0> in the incoming trunk of the general subscriber storing exchange and switch SWA. In the mobile telephone exchange, reporting tone transmission device TK and terminating trunk TRK are connected through switch SWB to transmit the reporting tone. At this time, the F relay of the terminating trunk of the general exchange is operated by the earth which passed through resistance RA of the mobile exchange and SWB to stop the ringing, and the earth is supplied to coil 1 of the D relay, and +48V which passed through resistance RB is supplied to coil 2. As a result, the D relay becomes unoperated, and the no-charging stage is set.
JP55025432A 1980-02-29 1980-02-29 Notification sound transmission method Expired JPS5944833B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55025432A JPS5944833B2 (en) 1980-02-29 1980-02-29 Notification sound transmission method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55025432A JPS5944833B2 (en) 1980-02-29 1980-02-29 Notification sound transmission method

Publications (2)

Publication Number Publication Date
JPS56122269A true JPS56122269A (en) 1981-09-25
JPS5944833B2 JPS5944833B2 (en) 1984-11-01

Family

ID=12165807

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55025432A Expired JPS5944833B2 (en) 1980-02-29 1980-02-29 Notification sound transmission method

Country Status (1)

Country Link
JP (1) JPS5944833B2 (en)

Also Published As

Publication number Publication date
JPS5944833B2 (en) 1984-11-01

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