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

Petri Jäppilä

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Method and system for redundant IP forwarding in a...

Multiplex communications – Fault recovery
Reexamination Certificate

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Method and system for software updating

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

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Profile ID: LFUS-PAI-P-2638343

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