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

Roy Robert Spillman, III

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Troubleshooting interface for client-routed toll-free...

Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – Of centralized switching system
Reexamination Certificate

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Using remote processors to generate routing information to...

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

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Profile ID: LFUS-PAI-P-2197968

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