BE438529A - - Google Patents

Info

Publication number
BE438529A
BE438529A BE438529DA BE438529A BE 438529 A BE438529 A BE 438529A BE 438529D A BE438529D A BE 438529DA BE 438529 A BE438529 A BE 438529A
Authority
BE
Belgium
Prior art keywords
telephone set
token
line
established
circuit
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE438529A publication Critical patent/BE438529A/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M17/00—Prepayment of wireline communication systems, wireless communication systems or telephone systems
    • H04M17/02—Coin-freed or check-freed systems, e.g. mobile- or card-operated phones, public telephones or booths
    • H04M17/023—Circuit arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Security & Cryptography (AREA)
  • Signal Processing (AREA)
  • Interface Circuits In Exchanges (AREA)
BE438529D BE438529A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Publications (1)

Publication Number Publication Date
BE438529A true BE438529A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Family

ID=96721

Family Applications (1)

Application Number Title Priority Date Filing Date
BE438529D BE438529A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Country Status (1)

Country Link
BE (1) BE438529A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

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