4. Telephonic communications
  5. Diagnostic testing, malfunction indication, or electrical...
  6. Testing of subscriber loop or terminal

Stephen R. LaPierre

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Communication networks including flash hook detectors and...

Telephonic communications – Special services – Service trigger
Reexamination Certificate

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Method and system for routing service calls made from resold...

Telephonic communications – Plural exchange network or interconnection – With interexchange network routing
Reexamination Certificate

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Method and system for routing service calls made from resold...

Telephonic communications – Plural exchange network or interconnection – With interexchange network routing
Reexamination Certificate

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Methods and systems for 1+ prepaid routing service

Telephonic communications – With usage measurement – Call charge metering or monitoring
Reexamination Certificate

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Methods and systems for 1+ prepaid routing service

Telephonic communications – Special services – Service profile
Reexamination Certificate

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Profile ID: LFUS-PAI-P-982096

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