4. Telephonic communications
  5. Plural exchange network or interconnection
  6. With interexchange network routing

David George Lewis

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Method for providing virtual dedicated access to an inter-exchan

Telephonic communications – Plural exchange network or interconnection – With interexchange network routing
Patent

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Network traffic controller

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

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Redundant call processing

Error detection/correction and fault detection/recovery – Data processing system error or fault handling – Reliability and availability
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1722830

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