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

Robert Paul Lowmaster

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Abbreviated dialing between PBX and Centrex systems using a...

Telephonic communications – Plural exchange network or interconnection – Multi-pbx interconnection
Reexamination Certificate

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Remote worker access on networked PBX systems using a VoIP...

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

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Profile ID: LFUS-PAI-P-3107524

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