4. Telephonic communications
  5. Diagnostic testing, malfunction indication, or electrical...
  6. Of centralized switching system

Sibyl C. Sullivan

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Method and system for defining call transfer rules for...

Telephonic communications – Special services – Automatic directory service
Reexamination Certificate

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PSTN call simulator and method of operation for testing...

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

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Profile ID: LFUS-PAI-P-2579997

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