4. Telephonic communications
  5. Supervisory or control line signaling
  6. Signal reception at substation

Hong Thi Nguyen

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Audio delivery of callerid information to a wireless...

Telecommunications – Radiotelephone system – Special service
Reexamination Certificate

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Caller control of internet call waiting

Telephonic communications – Special services – Call waiting
Reexamination Certificate

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Caller control of internet call waiting

Telephonic communications – Special services – Call waiting
Reexamination Certificate

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Checking of broadband network components

Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – Testing of subscriber loop or terminal
Reexamination Certificate

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Conference call setup automation

Telephonic communications – Special services – Conferencing
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2181727

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