4. Telephonic communications
  5. With usage measurement
  6. Call charge metering or monitoring

David Felger

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Method for billing and controlling fraud in providing pay inform

Telephonic communications – With usage measurement – Call traffic recording by computer or control processor
Patent

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Method for billing and controlling fraud in providing pay inform

Telephonic communications – With usage measurement – Call traffic recording by computer or control processor
Patent

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Method of billing a multiple service representative conference c

Telephonic communications – With usage measurement – Call charge metering or monitoring
Patent

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Multiple service representative conferencing apparatus and metho

Telephonic communications – With usage measurement – Call charge metering or monitoring
Patent

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