4. Telephonic communications
  5. Call or terminal access alarm or control
  6. At switching center

Per Tomas Andreason

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Connection of a computer to a telephone exchange

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

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Method and arrangement for connection of a computer to a...

Telephonic communications – Call or terminal access alarm or control – At switching center
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2751634

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