JPS5251803A - Toll call limiting device - Google Patents

Toll call limiting device

Info

Publication number
JPS5251803A
JPS5251803A JP12712275A JP12712275A JPS5251803A JP S5251803 A JPS5251803 A JP S5251803A JP 12712275 A JP12712275 A JP 12712275A JP 12712275 A JP12712275 A JP 12712275A JP S5251803 A JPS5251803 A JP S5251803A
Authority
JP
Japan
Prior art keywords
limiting device
toll call
call limiting
toll
transmitters
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
JP12712275A
Other languages
Japanese (ja)
Inventor
Motohiko Arimori
Masayuki Nagakura
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP12712275A priority Critical patent/JPS5251803A/en
Publication of JPS5251803A publication Critical patent/JPS5251803A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/66—Substation equipment, e.g. for use by subscribers with means for preventing unauthorised or fraudulent calling
    • H04M1/677—Preventing the dialling or sending of predetermined telephone numbers or selected types of telephone numbers, e.g. long distance numbers

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Signal Processing (AREA)

Abstract

PURPOSE:A sensor lever is equipped at the outer rim of telephone dial in order to limit the toll call of transmitters, thus ensuring an effective control of business telephone communication.
JP12712275A 1975-10-22 1975-10-22 Toll call limiting device Pending JPS5251803A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12712275A JPS5251803A (en) 1975-10-22 1975-10-22 Toll call limiting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12712275A JPS5251803A (en) 1975-10-22 1975-10-22 Toll call limiting device

Publications (1)

Publication Number Publication Date
JPS5251803A true JPS5251803A (en) 1977-04-26

Family

ID=14952140

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12712275A Pending JPS5251803A (en) 1975-10-22 1975-10-22 Toll call limiting device

Country Status (1)

Country Link
JP (1) JPS5251803A (en)

Similar Documents

Publication Publication Date Title
JPS5251803A (en) Toll call limiting device
JPS5283102A (en) Abbreviated dialing unit
JPS5313806A (en) Telephone extension system
JPS53110305A (en) Telephone set
JPS52113109A (en) Automatic answering telephone set
JPS5436107A (en) Registration system for incoming call restriction
JPS51114003A (en) Automatic information unit
JPS5210005A (en) Telephon
JPS5422107A (en) Telephone calling device
JPS5391605A (en) Telephone set
JPS5250104A (en) Ordering communication system by amplified call
JPS5363903A (en) Wristwatch with pocket bell
JPS5216106A (en) Telephone call unit
JPS5313801A (en) Answering hold system in mobile communication
JPS5261404A (en) Individual selection call receiver
JPS51144503A (en) Telephone set
JPS5332603A (en) Telephone set with timer
JPS52127107A (en) Controlling of toll call
JPS5338908A (en) Rotary dial for telephone set
JPS5355905A (en) Automatic dialing system
JPS524880A (en) Solar battery wrist watch
JPS5366310A (en) Tone signal detecting circuit
JPS53134305A (en) Telephone set of dial operation
JPS53117304A (en) Starting system for press-to-talk from push-button dial telephone set
JPS5329606A (en) Simple type hand-free communicating unit