4. Telephonic communications
  5. Telephone line or system combined with diverse electrical...

P. Bradley Rosen

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Communication between a telephone and a computer system

Telephonic communications – Supervisory or control line signaling – Using line or loop condition detection
Patent

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Communication with a computer using telephones

Telephonic communications – Telephone line or system combined with diverse electrical...
Patent

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Network telephone communication

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

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Profile ID: LFUS-PAI-P-1476070

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