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

Joseph T Phan

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Adaptive transmission system

Telecommunications – Transmitter and receiver at separate stations – Plural transmitters or receivers
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Arrangement in a local computer for sending voice messages...

Telephonic communications – Audio message storage – retrieval – or synthesis – Interaction with an external nontelephone network
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Authorized distribution of digital content over mobile networks

Telephonic communications – With usage measurement – Call charge metering or monitoring
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Automated call router for business directory using the world...

Telephonic communications – Audio message storage – retrieval – or synthesis – Multimedia system
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Automatic spim detection

Telephonic communications – Telephone line or system combined with diverse electrical... – Having transmission of a digital message signal over a...
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Profile ID: LFUS-PAI-P-2246832

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