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

Dominic Walker

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Tandem free operation over packet networks

Multiplex communications – Pathfinding or routing – Combined circuit switching and packet switching
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Voice and fax over IP call establishment in a communications...

Telephonic communications – Telephone line or system combined with diverse electrical... – Having transmission of a digital message signal over a...
Reexamination Certificate

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