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

Emma M. Espinoza

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Method and system for presenting billing information...

Telephonic communications – With usage measurement – Call charge metering or monitoring
Reexamination Certificate

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Method and system for presenting billing information...

Telephonic communications – With usage measurement – Call charge metering or monitoring
Reexamination Certificate

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