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

M. Lourdes Coronado

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Local routing system and method

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

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Local routing system and method

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

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Local routing system and method

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

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Local routing system and method

Telephonic communications – Plural exchange network or interconnection – With interexchange network routing
Reexamination Certificate

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Local routing system and method

Telephonic communications – Plural exchange network or interconnection – With interexchange network routing
Reexamination Certificate

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