4. Telephonic communications
  5. With check operated control
  6. Fraud or interference prevention
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Method and apparatus for detecting and announcing pin fraud on c

Telephonic communications – With check operated control – Fraud or interference prevention
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Method and apparatus for electronic payphone open switch interva

Telephonic communications – With check operated control – Fraud or interference prevention
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Method and apparatus for preventing pay telephone fraud and redu

Telephonic communications – With check operated control – Fraud or interference prevention
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Method and apparatus for preventing pin fraud on coin telephones

Telephonic communications – With check operated control – Fraud or interference prevention
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Method and apparatus for preventing return dial tone fraud in a

Telephonic communications – With check operated control – Fraud or interference prevention
Patent

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Method and apparatus for providing fraud detection using hot...

Telephonic communications – With check operated control – Fraud or interference prevention
Reexamination Certificate

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Method of preventing fraudulent toll calls by key system users

Telephonic communications – With check operated control – Fraud or interference prevention
Patent

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Motion detection for preventing removal of a fixed wireless term

Telephonic communications – With check operated control – Fraud or interference prevention
Patent

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