4. Telephonic communications
  5. Special services
  6. Call blocking

Brent V. Bell

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Caller identification system with announcement capability

Telephonic communications – Audio message storage – retrieval – or synthesis – Call source identification
Reexamination Certificate

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Method for screening calls

Telephonic communications – Special services – Call blocking
Reexamination Certificate

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Prepaid long distance call system and method

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

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Profile ID: LFUS-PAI-P-2560611

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