4. Telephonic communications
  5. Centralized switching system
  6. Call distribution to operator

Andrei Petrov

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Call and data correspondence in a call-in center employing...

Telephonic communications – Centralized switching system – Call distribution to operator
Reexamination Certificate

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Call and data correspondence in a call-in center employing...

Telephonic communications – Centralized switching system – Call distribution to operator
Reexamination Certificate

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Call and data correspondence in a call-in center employing...

Telephonic communications – Centralized switching system – Call distribution to operator
Reexamination Certificate

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Methods and apparatus for personal routing in...

Telephonic communications – Audio message storage – retrieval – or synthesis – Interaction with an external nontelephone network
Reexamination Certificate

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Virtualized computer telephony integrated link for enhanced func

Telephonic communications – Centralized switching system – Call distribution to operator
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Profile ID: LFUS-PAI-P-532920

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