4. Multiplex communications
  5. Pathfinding or routing
  6. Combined circuit switching and packet switching

John Piescik

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Packet network based emergency backup telephone system

Multiplex communications – Pathfinding or routing – Combined circuit switching and packet switching
Reexamination Certificate

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Packet network based emergency backup telephone system

Multiplex communications – Pathfinding or routing – Combined circuit switching and packet switching
Reexamination Certificate

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Profile ID: LFUS-PAI-P-3180021

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