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

Patricia Landgren

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Call flow system and method for use in a legacy...

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

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Call flow system and method use in VoIP telecommunication...

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

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System and method for enabling DTMF detection in a VoIP network

Multiplex communications – Pathfinding or routing
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2189338

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