4. Telephonic communications
  5. Centralized switching system
  6. Switching controlled in response to called station...

Nicholas D. De Trana

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Apparatus and method for fast automated recovery from toll switc

Telephonic communications – Plural exchange network or interconnection – Connection call model
Patent

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Communications switch permitting transparent maintenance of swit

Telephonic communications – Centralized switching system – Switching controlled in response to called station...
Patent

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Method and apparatus for a customer self-provisioning of...

Telephonic communications – Centralized switching system
Reexamination Certificate

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Method and apparatus for a remote signaling and call...

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

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Method and apparatus for a remote signaling and call...

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

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Profile ID: LFUS-PAI-P-1564437

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